fossile

Nature du spécimen

183 image(s) · 103 Actualités

Galerie d'images

Helioceratops brachygnathus restoration based on fossil images.
Taxons Helioceratops

Helioceratops brachygnathus restoration based on fossil images.

fossile Helioceratops
fossil Craspedodon
Taxons Craspedodon

fossil Craspedodon

fossile Craspedodon
Fossil of Lurdusaurus, an ornithopod dinosaur
Took the photo at Musee d'Histoire Naturelle, Brussels
Taxons Lurdusaurus

Fossil of Lurdusaurus, an ornithopod dinosaur Took the photo at Musee d'Histoire Naturelle, Brussels

fossile Dinosauria Lurdusaurus
Life restoration of Morrosaurus antarcticus based on fossil images. Integument based on small, bipedal ornithischians like Kulindadromeus.
Taxons Morrosaurus

Life restoration of Morrosaurus antarcticus based on fossil images. Integument based on small, bipedal ornithischians like Kulindadromeus.

fossile Kulindadromeus Morrosaurus Ornithischia
Jinzhousaurus yangi fossil displayed in Hong Kong Science Museum
Taxons Jinzhousaurus

Jinzhousaurus yangi fossil displayed in Hong Kong Science Museum

musée fossile Jinzhousaurus
Theiophytalia kerri Brill & Carpenter, 2006 - ornithopod dinosaur skull from the Cretaceous of Colorado, USA. (YPM 1887, public display, Garden of the Gods visitor center, Colorado Springs, Colorado, USA)
This skull is the holotype and only known specimen of an entire genus of ornithopod dinosaurs, Theiophytalia.  Ornithopods were herbivorous dinosaurs.


From exhibit signage:
A Brand New Dinosaur Species Theiophytalia kerri
What we know about the dinosaur fossil - so far:
It is the only Theiophytalia kerri fossil known to exist in the world.
It is a brand new genus and species of dinosaur.
Theiophytalia kerri means "belonging to the Garden of the Gods".  "Theios" is a Greek word that means "belonging to the gods" and "phytalia" means "garden".  "kerri" honors James Hutchinson Kerr (pronounced "Care"), who discovered the dinosaur fossil.
Theiophytalia was a medium-sized dinosaur, measuring about 30 feet from head to tail.
It was found in 1878 in the Garden of the Gods in the lower Lytle Member of the Purgatoire Rock Formation of the Dakota Group.
The dinosaur fossil skull is from the Aptian-Albian Age of the Cretaceous Ear, 125 - 100 million years old.
Look closely at the fossil skull.  Where are the teeth located?  You can see the teeth in the back of the jaw.  There are no teeth in the front of the dinosaur's beak-like mouth.  This is evidence that the Theiophytalia was a plant eater.  It could nip and tear plants, then grind them between its tightly-packed back teeth, similar to plant-eaters of today.
Timeline:
Dinosaur Fossil Discovered, then Forgotten
1878 - James Kerr, geology professor at Colorado College, finds a fossil skull "in one of the ridges east of the red rocks of the Garden of the Gods."
1886 - O.C. Marsh, famous 1800s dinosaur collector from Yale University, obtains the fossil skull from James Kerr, identifies it as a Camptosaurus dinosaur, and sends the fossil to the Yale Peabody Museum in New Haven, Connecticut.
1886 - 1995 - While the dinosaur fossil skull safely rests in the Yale Museum for many decades, knowledge of its existence is forgotten in Colorado Springs.
Rediscovery - 117 years later
1994 - Colorado Springs City park staff research new exhibits for the Garden of the Gods Visitor and Nature Center, set to open in 1995.  They meet with Doctor Kirk Johnson, curator of paleontology at the Denver Museum of Nature & Science.
1995 - Kirk Johnson refers the park staff to his museum colleague Doctor Ken Carpenter, expert dinosaur scientist.  Doctor Carpenter remembers seeing in his files "something about a dinosaur fossil found in Garden of the Gods" and mails the following article to park staff.
Camptosaurus amplus No. 1887, Yale Museum, consisting of portions of the skull and lower jaw.  It was collected from deposits in the Garden of the Gods, Colorado Springs, Colorado.  With this specimen was found the following note in Professor O.C. Marsh's handwriting, "Part of this animal and various Sauropoda bones were taken out by Professor Kerr in 1878."
A Case of Mistaken Identity Reveals a Brand New Dinosaur!
1996 - Kirk Johnson (a Yale alumnus) secures permission to hand-carry the Camptosaurus fossil from the Yale Peabody Museum to Denver so that Ken Carpenter can make a cast (a precise replica) of the fossil.
Doctor Carpenter notices irregularities in the Camptosaurus fossil and decides to re-examine the fossil when his schedule permits.
1997 - The Camptosaurus fossil replica is given to the City of Colorado Springs and is exhibited at the Garden of the Gods Visitor and Nature Center.
2006 - Doctor Carpenter and his associate Kathleen Brill reassess the fossil skull and note that it differs from other Camptosaurus skulls in several significant ways, such as the narrower mouth and snout, and the position of the nasal openings, and the bony structures over the eyes.
Also, microscopic identification of the rock matrix clinging to the fossil, and research of archival maps, reveal that the fossil skull was actually found in the lower Dakota Rock Formation, not the Morrison Formation as originally reported in the 1800s.  The skull is from a dinosaur that lived in the Cretaceous Ear and can't be a Jurassic Era Camptosaurus.
Doctor Carpenter's exacting research reveals that the dinosaur skull is a brand new genus and species of dinosaur!  He names it Theiophytalia kerri.
2008 - The Theiophytalia kerri is proudly re-exhibited at the Garden of the Gods Visitor and Nature Center.


Classification: Animalia, Chordata, Vertebrata, Dinosauria, Ornithischia, Ornithopoda
Stratigraphy: lower Lytle Member, Purgatoire Formation, Dakota Group, Aptian to Albian Stages, upper Lower Cretaceous
Locality: Garden of the Gods, Colorado Springs, Colorado, USA


See info. at:
en.wikipedia.org/wiki/Theiophytalia
and

en.wikipedia.org/wiki/Ornithopoda
Taxons Theiophytalia

Theiophytalia kerri Brill & Carpenter, 2006 - ornithopod dinosaur skull from the Cretaceous of Colorado, USA. (YPM 1887, public display, Garden of the Gods visitor center, Colorado Springs, Colorado, USA) This skull is the holotype and only known specimen of an entire genus of ornithopod dinosaurs, Theiophytalia. Ornithopods were herbivorous dinosaurs. From exhibit signage: A Brand New Dinosaur Species Theiophytalia kerri What we know about the dinosaur fossil - so far: It is the only Theiophytalia kerri fossil known to exist in the world. It is a brand new genus and species of dinosaur. Theiophytalia kerri means "belonging to the Garden of the Gods". "Theios" is a Greek word that means "belonging to the gods" and "phytalia" means "garden". "kerri" honors James Hutchinson Kerr (pronounced "Care"), who discovered the dinosaur fossil. Theiophytalia was a medium-sized dinosaur, measuring about 30 feet from head to tail. It was found in 1878 in the Garden of the Gods in the lower Lytle Member of the Purgatoire Rock Formation of the Dakota Group. The dinosaur fossil skull is from the Aptian-Albian Age of the Cretaceous Ear, 125 - 100 million years old. Look closely at the fossil skull. Where are the teeth located? You can see the teeth in the back of the jaw. There are no teeth in the front of the dinosaur's beak-like mouth. This is evidence that the Theiophytalia was a plant eater. It could nip and tear plants, then grind them between its tightly-packed back teeth, similar to plant-eaters of today. Timeline: Dinosaur Fossil Discovered, then Forgotten 1878 - James Kerr, geology professor at Colorado College, finds a fossil skull "in one of the ridges east of the red rocks of the Garden of the Gods." 1886 - O.C. Marsh, famous 1800s dinosaur collector from Yale University, obtains the fossil skull from James Kerr, identifies it as a Camptosaurus dinosaur, and sends the fossil to the Yale Peabody Museum in New Haven, Connecticut. 1886 - 1995 - While the dinosaur fossil skull safely rests in the Yale Museum for many decades, knowledge of its existence is forgotten in Colorado Springs. Rediscovery - 117 years later 1994 - Colorado Springs City park staff research new exhibits for the Garden of the Gods Visitor and Nature Center, set to open in 1995. They meet with Doctor Kirk Johnson, curator of paleontology at the Denver Museum of Nature & Science. 1995 - Kirk Johnson refers the park staff to his museum colleague Doctor Ken Carpenter, expert dinosaur scientist. Doctor Carpenter remembers seeing in his files "something about a dinosaur fossil found in Garden of the Gods" and mails the following article to park staff. Camptosaurus amplus No. 1887, Yale Museum, consisting of portions of the skull and lower jaw. It was collected from deposits in the Garden of the Gods, Colorado Springs, Colorado. With this specimen was found the following note in Professor O.C. Marsh's handwriting, "Part of this animal and various Sauropoda bones were taken out by Professor Kerr in 1878." A Case of Mistaken Identity Reveals a Brand New Dinosaur! 1996 - Kirk Johnson (a Yale alumnus) secures permission to hand-carry the Camptosaurus fossil from the Yale Peabody Museum to Denver so that Ken Carpenter can make a cast (a precise replica) of the fossil. Doctor Carpenter notices irregularities in the Camptosaurus fossil and decides to re-examine the fossil when his schedule permits. 1997 - The Camptosaurus fossil replica is given to the City of Colorado Springs and is exhibited at the Garden of the Gods Visitor and Nature Center. 2006 - Doctor Carpenter and his associate Kathleen Brill reassess the fossil skull and note that it differs from other Camptosaurus skulls in several significant ways, such as the narrower mouth and snout, and the position of the nasal openings, and the bony structures over the eyes. Also, microscopic identification of the rock matrix clinging to the fossil, and research of archival maps, reveal that the fossil skull was actually found in the lower Dakota Rock Formation, not the Morrison Formation as originally reported in the 1800s. The skull is from a dinosaur that lived in the Cretaceous Ear and can't be a Jurassic Era Camptosaurus. Doctor Carpenter's exacting research reveals that the dinosaur skull is a brand new genus and species of dinosaur! He names it Theiophytalia kerri. 2008 - The Theiophytalia kerri is proudly re-exhibited at the Garden of the Gods Visitor and Nature Center. Classification: Animalia, Chordata, Vertebrata, Dinosauria, Ornithischia, Ornithopoda Stratigraphy: lower Lytle Member, Purgatoire Formation, Dakota Group, Aptian to Albian Stages, upper Lower Cretaceous Locality: Garden of the Gods, Colorado Springs, Colorado, USA See info. at: en.wikipedia.org/wiki/Theiophytalia and en.wikipedia.org/wiki/Ornithopoda

États-Unis Crétacé fossile holotype +4
Fossil specimen of Liaoningosaurus paradoxus on display at the Beijing Museum of Natural History.
Taxons Liaoningosaurus

Fossil specimen of Liaoningosaurus paradoxus on display at the Beijing Museum of Natural History.

musée fossile spécimen Liaoningosaurus
Fossil skeleton of Gargoyleosaurus parkpinorum taken in 2007 at the Denver Museum of Nature and Science.
Taxons Gargoyleosaurus

Fossil skeleton of Gargoyleosaurus parkpinorum taken in 2007 at the Denver Museum of Nature and Science.

musée Denver fossile Gargoyleosaurus +1
fossil of Isanosaurus attavipachi, an extinct sauropod
Taxons Isanosaurus

fossil of Isanosaurus attavipachi, an extinct sauropod

fossile Isanosaurus
Chuanjiesaurus fossil in China Science and Technology Museum. The other two smaller suites of fossils are Lufengosaurus and Dilophosaurus.
Taxons Chuanjiesaurus

Chuanjiesaurus fossil in China Science and Technology Museum. The other two smaller suites of fossils are Lufengosaurus and Dilophosaurus.

musée Chine fossile Chuanjiesaurus +2
A restoration of Rinconsaurus compared to a human ,

•  Based proportionally on fossil elements and skeletal reconstruction featured in the Rinconsaurus description,[1] with missing parts based on other titanosaur reconstructions. The remains of Rinconsaurus represent two adults and a juvenile all of which are incomplete; some of the proportions shown here, such as the neck, limb lengths, and skull shape are not certain.
•  Osteroderms are not yet known in Rinconsaurus.  The osteoderms shown here are based loosely on Mendozasaurus.[2] Osteoderms are known from at least 10 titanosaur genera spread across the family tree but it's not clear if all titanosaurs had them.[3] Titanosaur osteoderms are rare and their layout and position on the body are not certain. [4]
•  The colours and patterns, as with the majority of reconstructions of prehistoric creatures, are speculative.
•  Human silhouette approximately 180 cm tall.

NOTE: I often update my images. If you want to have any of my images on a website, please (if possible) don’t host/save it to the website server. I’d prefer it if the image's Wikimedia URL is used. This means that if I update an image, it will be updated on the site as well.  Thanks.   


References


↑ Coria, Jorge; B.J.G. Riga (2003). "Rinconsaurus caudamirus gen. et sp nov., a new titanosaurid (Dinosauria, Sauropoda) from the Late Cretaceous of Patagonia, Argentina". Revista Geologica de Chile 30 (2): 333–353. ISSN 0716-0208. Retrieved on 2007-05-21.

↑   González Riga B (2003) A new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Mendoza, Argentina. Ameghiniana 40 (2) 

↑  Carrano, M.T. and D’Emic, M.D.  2015 'Osteoderms of the titanosaur sauropod dinosaur Alamosaurus sanjuanensis Gilmore, 1922'. Journal of Vertebrate Paleontology.

↑    Vidal D, Ortega F, Sanz JL (2014) Titanosaur Osteoderms from the Upper Cretaceous of Lo Hueco (Spain) and Their Implications on the Armor of Laurasian Titanosaurs. PLoS ONE 9(8): e102488. doi:10.1371/journal.pone.0102488
Taxons Rinconsaurus

A restoration of Rinconsaurus compared to a human , • Based proportionally on fossil elements and skeletal reconstruction featured in the Rinconsaurus description,[1] with missing parts based on other titanosaur reconstructions. The remains of Rinconsaurus represent two adults and a juvenile all of which are incomplete; some of the proportions shown here, such as the neck, limb lengths, and skull shape are not certain. • Osteroderms are not yet known in Rinconsaurus. The osteoderms shown here are based loosely on Mendozasaurus.[2] Osteoderms are known from at least 10 titanosaur genera spread across the family tree but it's not clear if all titanosaurs had them.[3] Titanosaur osteoderms are rare and their layout and position on the body are not certain. [4] • The colours and patterns, as with the majority of reconstructions of prehistoric creatures, are speculative. • Human silhouette approximately 180 cm tall. NOTE: I often update my images. If you want to have any of my images on a website, please (if possible) don’t host/save it to the website server. I’d prefer it if the image's Wikimedia URL is used. This means that if I update an image, it will be updated on the site as well. Thanks. References ↑ Coria, Jorge; B.J.G. Riga (2003). "Rinconsaurus caudamirus gen. et sp nov., a new titanosaurid (Dinosauria, Sauropoda) from the Late Cretaceous of Patagonia, Argentina". Revista Geologica de Chile 30 (2): 333–353. ISSN 0716-0208. Retrieved on 2007-05-21. ↑ González Riga B (2003) A new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Mendoza, Argentina. Ameghiniana 40 (2) ↑ Carrano, M.T. and D’Emic, M.D. 2015 'Osteoderms of the titanosaur sauropod dinosaur Alamosaurus sanjuanensis Gilmore, 1922'. Journal of Vertebrate Paleontology. ↑ Vidal D, Ortega F, Sanz JL (2014) Titanosaur Osteoderms from the Upper Cretaceous of Lo Hueco (Spain) and Their Implications on the Armor of Laurasian Titanosaurs. PLoS ONE 9(8): e102488. doi:10.1371/journal.pone.0102488

membre description fossile juvénile +4
A restoration of Rinconsaurus compared to a human ,

•  Based proportionally on fossil elements and skeletal reconstruction featured in the Rinconsaurus description,[1] with missing parts based on other titanosaur reconstructions. The remains of Rinconsaurus represent two adults and a juvenile all of which are incomplete; some of the proportions shown here, such as the neck, limb lengths, and skull shape are not certain.
•  Osteroderms are not yet known in Rinconsaurus.  The osteoderms shown here are based loosely on Mendozasaurus.[2] Osteoderms are known from at least 10 titanosaur genera spread across the family tree but it's not clear if all titanosaurs had them.[3] Titanosaur osteoderms are rare and their layout and position on the body are not certain. [4]
•  The colours and patterns, as with the majority of reconstructions of prehistoric creatures, are speculative.
•  Human silhouette approximately 180 cm tall.

NOTE: I often update my images. If you want to have any of my images on a website, please (if possible) don’t host/save it to the website server. I’d prefer it if the image's Wikimedia URL is used. This means that if I update an image, it will be updated on the site as well.  Thanks.   


References


↑ Coria, Jorge; B.J.G. Riga (2003). "Rinconsaurus caudamirus gen. et sp nov., a new titanosaurid (Dinosauria, Sauropoda) from the Late Cretaceous of Patagonia, Argentina". Revista Geologica de Chile 30 (2): 333–353. ISSN 0716-0208. Retrieved on 2007-05-21.

↑   González Riga B (2003) A new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Mendoza, Argentina. Ameghiniana 40 (2) 

↑  Carrano, M.T. and D’Emic, M.D.  2015 'Osteoderms of the titanosaur sauropod dinosaur Alamosaurus sanjuanensis Gilmore, 1922'. Journal of Vertebrate Paleontology.

↑    Vidal D, Ortega F, Sanz JL (2014) Titanosaur Osteoderms from the Upper Cretaceous of Lo Hueco (Spain) and Their Implications on the Armor of Laurasian Titanosaurs. PLoS ONE 9(8): e102488. doi:10.1371/journal.pone.0102488
Taxons Rinconsauria

A restoration of Rinconsaurus compared to a human , • Based proportionally on fossil elements and skeletal reconstruction featured in the Rinconsaurus description,[1] with missing parts based on other titanosaur reconstructions. The remains of Rinconsaurus represent two adults and a juvenile all of which are incomplete; some of the proportions shown here, such as the neck, limb lengths, and skull shape are not certain. • Osteroderms are not yet known in Rinconsaurus. The osteoderms shown here are based loosely on Mendozasaurus.[2] Osteoderms are known from at least 10 titanosaur genera spread across the family tree but it's not clear if all titanosaurs had them.[3] Titanosaur osteoderms are rare and their layout and position on the body are not certain. [4] • The colours and patterns, as with the majority of reconstructions of prehistoric creatures, are speculative. • Human silhouette approximately 180 cm tall. NOTE: I often update my images. If you want to have any of my images on a website, please (if possible) don’t host/save it to the website server. I’d prefer it if the image's Wikimedia URL is used. This means that if I update an image, it will be updated on the site as well. Thanks. References ↑ Coria, Jorge; B.J.G. Riga (2003). "Rinconsaurus caudamirus gen. et sp nov., a new titanosaurid (Dinosauria, Sauropoda) from the Late Cretaceous of Patagonia, Argentina". Revista Geologica de Chile 30 (2): 333–353. ISSN 0716-0208. Retrieved on 2007-05-21. ↑ González Riga B (2003) A new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Mendoza, Argentina. Ameghiniana 40 (2) ↑ Carrano, M.T. and D’Emic, M.D. 2015 'Osteoderms of the titanosaur sauropod dinosaur Alamosaurus sanjuanensis Gilmore, 1922'. Journal of Vertebrate Paleontology. ↑ Vidal D, Ortega F, Sanz JL (2014) Titanosaur Osteoderms from the Upper Cretaceous of Lo Hueco (Spain) and Their Implications on the Armor of Laurasian Titanosaurs. PLoS ONE 9(8): e102488. doi:10.1371/journal.pone.0102488

membre description fossile juvénile +4
Illustration of a fossil of Mongolosaurus
Taxons Mongolosaurus

Illustration of a fossil of Mongolosaurus

fossile Mongolosaurus
Fossil of Mosasaurus, an extinct mosasaur, reconstruction of the Mosasaurus of Bemelen. Took the photo at Natural History Museum of Maastricht

Fossil of Mosasaurus, an extinct mosasaur, reconstruction of the Mosasaurus of Bemelen. Took the photo at Natural History Museum of Maastricht

musée fossile Moanasaurus Mosasaurus
1865.. 
WHITAKEE BXrCKlNGHAM CHALK, 
399 
I cannot give the thickness with accuraC3\ I will now give a short 
account of each, beginning with the lowest. 
(g). Chalk-marl. — A 
rather brownish-white, 
slightly sandy, clayey 
chalk, fissile, with stony 
layers here and there, and 
often with fossils (notably 
fish-scales). This is per- 
haps 80 feet thick, and 
mostly causes a rise of the 
ground above the sloping 
plain of the Upper Green- 
sand. 
(/). Totfernlioe Stone.- 
At the top of the Chalk- 
marl in this district there 
are generally two layers 
of rathersandy limestone, 
separated by a little marl, 
and which are more dis- 
tinct further north-east- 
ward (in Bedfordshire), 
where they are each about 
3 feet thick. One bed is 
always here present, but 
I did not always see the 
two. This stone mostly 
yields fossils, amongst 
which Ammonites vai'ians 
and an Inoceramus are 
abundant, and small, 
hard,dark-brown nodules, 
most likely coprolitic : it 
is harder and darker than 
common chalk, and con- 
tains many small dark 
grains ; and was once 
largely quarried, for build- 
ing, at Totternhoe, where 
there are plentiful traces 
of the workings. Most 
of the old churches of the 
neighbourhood were built 
in great part of this pe- 
rishable stone, but I be- 
lieve that its use has been 
long discontinued. 
Details of the occur- 
rence of this bed will be 
given in the ' Gcolo- 

2 E 2

1865.. WHITAKEE BXrCKlNGHAM CHALK, 399 I cannot give the thickness with accuraC3\ I will now give a short account of each, beginning with the lowest. (g). Chalk-marl. — A rather brownish-white, slightly sandy, clayey chalk, fissile, with stony layers here and there, and often with fossils (notably fish-scales). This is per- haps 80 feet thick, and mostly causes a rise of the ground above the sloping plain of the Upper Green- sand. (/). Totfernlioe Stone.- At the top of the Chalk- marl in this district there are generally two layers of rathersandy limestone, separated by a little marl, and which are more dis- tinct further north-east- ward (in Bedfordshire), where they are each about 3 feet thick. One bed is always here present, but I did not always see the two. This stone mostly yields fossils, amongst which Ammonites vai'ians and an Inoceramus are abundant, and small, hard,dark-brown nodules, most likely coprolitic : it is harder and darker than common chalk, and con- tains many small dark grains ; and was once largely quarried, for build- ing, at Totternhoe, where there are plentiful traces of the workings. Most of the old churches of the neighbourhood were built in great part of this pe- rishable stone, but I be- lieve that its use has been long discontinued. Details of the occur- rence of this bed will be given in the ' Gcolo- 2 E 2

écaille fossile
Locality map for Australian eurypodan thyreophoran fossils.

1, Stegosaurian? footprint (QM F5701), Walloon Coal Measures, Balgowan Colliery, Balgowan (Bajocian–Bathonian); 2, Minmi paravertebra holotype (QM F10329) (Molnar, 1980), Minmi Member, Bungil Formation (Valanginian–Barremian); 3, Thyreophoran trackways, Broome Sandstone, Dampier Peninsula, Western Australia (Valanginian–Barremian); 4, Ankylosauria indet. (see Barrett et al., 2010) ‘Flat Rocks’ Wonthaggi Formation (upper Hauterivian–Albian); 5, NMV P216739, ‘Lake Copco–Dinosaur Cove’ Eumeralla Formation (middle upper Aptian to lower middle Albian) (Barrett et al., 2010); 6, QM F33286; 7, AM F119849 and AM F35259; 8, Kunbarrasaurus ieversi gen. et sp. nov. (formerly Minmi sp.) (QM F18101); 9, QM F33565 and QM F33566; 10, QM F44324-28. Legend: Dark Green, Toolebuc Formation (late middle–early late Albian); Green, Allaru Formation (upper Albian–(?)lower Cenomanian); Light green, Mackunda Formation (upper Albian–lower Cenomanian); Lightest green, Winton Formation (late Albian–early Turonian).
Formations Toolebuc

Locality map for Australian eurypodan thyreophoran fossils. 1, Stegosaurian? footprint (QM F5701), Walloon Coal Measures, Balgowan Colliery, Balgowan (Bajocian–Bathonian); 2, Minmi paravertebra holotype (QM F10329) (Molnar, 1980), Minmi Member, Bungil Formation (Valanginian–Barremian); 3, Thyreophoran trackways, Broome Sandstone, Dampier Peninsula, Western Australia (Valanginian–Barremian); 4, Ankylosauria indet. (see Barrett et al., 2010) ‘Flat Rocks’ Wonthaggi Formation (upper Hauterivian–Albian); 5, NMV P216739, ‘Lake Copco–Dinosaur Cove’ Eumeralla Formation (middle upper Aptian to lower middle Albian) (Barrett et al., 2010); 6, QM F33286; 7, AM F119849 and AM F35259; 8, Kunbarrasaurus ieversi gen. et sp. nov. (formerly Minmi sp.) (QM F18101); 9, QM F33565 and QM F33566; 10, QM F44324-28. Legend: Dark Green, Toolebuc Formation (late middle–early late Albian); Green, Allaru Formation (upper Albian–(?)lower Cenomanian); Light green, Mackunda Formation (upper Albian–lower Cenomanian); Lightest green, Winton Formation (late Albian–early Turonian).

Australie Broome Sandstone Eumeralla Toolebuc +18
1 2 3 4 5 6 7 8 9 10 11 12

Actualités

De superbes traces de dinosaures vieilles de 132 millions d’années réécrivent l’histoire
fossile empreintes Dinosauria découverte
Un mystère de longue date dans les archives fossiles de l’Afrique australe commence à être résolu. Après que des coulées de lave massives, il y a 182 millions d'années, aient semblé effacer les traces de dinosaures dans la région, les scientifiques ont maintenant découvert de nouveaux indices surprenants le long de la côte du Cap occidental. Des dizaines de traces de dinosaures, vieilles d'environ 132 millions d'années, ont été découvertes dans une petite étendue rocheuse près de Knysna, ce qui en fait les plus jeunes jamais découvertes en Afrique australe.
23/04/2026 sciencedaily ⚙ Traduction automatique
Des scientifiques découvrent des fossiles parfaits dans la rouille sous les terres agricoles australiennes
fossile
Sous les terres agricoles arides de la Nouvelle-Galles du Sud se trouve une fenêtre cachée sur une forêt tropicale perdue regorgeant de vie datant d'il y a 11 à 16 millions d'années. À McGraths Flat, les scientifiques ont découvert des fossiles préservés avec des détails étonnants, non pas dans des roches typiques comme le schiste ou le grès, mais dans des sédiments riches en fer que l'on croyait autrefois incapables d'une telle préservation. De minuscules particules de fer remplissaient et capturaient des cellules entières, préservant tout, des organes d'insectes aux pigments des yeux de poisson et aux délicats poils d'araignées.
23/04/2026 sciencedaily ⚙ Traduction automatique
Cet ancien parent du crocodile a grandi sur quatre pattes puis a marché sur deux
fossile Dinosauria
Un étrange parent d'un crocodile de l'époque des dinosaures réécrit ce que les scientifiques pensaient savoir sur les anciens reptiles. Cette créature de la taille d'un caniche, appelée Sonselasuchus cedrus, semble avoir commencé sa vie en marchant à quatre pattes avant de passer à une position sur deux pattes à mesure qu'elle grandissait - une transformation inhabituelle rarement observée dans les archives fossiles.
23/04/2026 sciencedaily ⚙ Traduction automatique
450-Million-Year-Old Fossils Reveal Strange, Tube-Dwelling Jellyfish Relative
Des fossiles vieux de 450 millions d’années révèlent un étrange parent de méduses tubicoles
Canada fossile spécimen nouvelle espèce
Les paléontologues ont identifié un nouveau genre et une nouvelle espèce de polype médusozoaire tubicole au corps mou à partir de spécimens bien conservés trouvés à environ 50 km au nord-est de la ville de Québec au Canada. L'article Des fossiles vieux de 450 millions d'années révèlent un étrange parent de méduses tubicoles apparaît en premier sur Sci.News : Breaking Science News.
21/04/2026 sci-news ⚙ Traduction automatique
Ces minuscules fossiles de dinosaures ont trompé les scientifiques pendant 20 ans
armure os croissance fossile Ankylosauria Dinosauria découverte
De minuscules fossiles de dinosaures qui ont intrigué les scientifiques pendant plus de 20 ans ont enfin révélé leur véritable identité. Plutôt que d’appartenir à une espèce miniature, ce sont en réalité des bébés ankylosaures, certains âgés de moins d’un an, y compris un possible nouveau-né. En étudiant les schémas de croissance osseuse, les chercheurs ont confirmé que ces jeunes dinosaures n’étaient pas encore devenus des adultes de grande taille. La découverte apporte un nouvel éclairage sur la façon dont les ankylosaures se sont développés, montrant qu'ils ont commencé à développer une armure étonnamment tôt.
21/04/2026 sciencedaily ⚙ Traduction automatique
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