formation

Thématique

218 image(s) · 13 Actualités

Galerie d'images

The hadrosaurid dinosaur Wulagasaurus dongi gen. et sp. nov. from the Upper Cretaceous Yuliangze Formation at the Wulaga quarry, China.

A. Holotype GMH W184, right dentary in lateral (A1) and medial (A2) views. B. GMH W217, right dentary in lateral (B1) and medial (B2) views.
Taxons Wulagasaurus

The hadrosaurid dinosaur Wulagasaurus dongi gen. et sp. nov. from the Upper Cretaceous Yuliangze Formation at the Wulaga quarry, China. A. Holotype GMH W184, right dentary in lateral (A1) and medial (A2) views. B. GMH W217, right dentary in lateral (B1) and medial (B2) views.

Chine Crétacé holotype Dinosauria +3
Figure 1: Reconstruction of the skull of Bellusaurus sui from the Middle-Late Jurassic Shishugou Formation of Xinjiang, China.
This reconstruction is a composite based on isolated holotypic and referred material. (A) Right lateral view. (B) Dorsal view. Holotypic elements are indicated in blue and referred elements are in green.
Taxons Bellusaurus

Figure 1: Reconstruction of the skull of Bellusaurus sui from the Middle-Late Jurassic Shishugou Formation of Xinjiang, China. This reconstruction is a composite based on isolated holotypic and referred material. (A) Right lateral view. (B) Dorsal view. Holotypic elements are indicated in blue and referred elements are in green.

Chine Jurassique Jurassique supérieur Bellusaurus +2
Cervical vertebrae of rebbachisaurid sauropod Katepensaurus goicoecheai Ibiricu, Casal, Martínez, Lamanna, Luna, and Salgado, 2013a from the
Cenomanian–Turonian Bajo Barreal Formation of Chubut Province, Argentina. A. UNPSJB-PV 1007/1, anterior cervical vertebra in anterior (A1) and
right ventrolateral (A2) views. B. UNPSJB-PV 1007/2, anterior cervical vertebra in right lateral view. C. UNPSJB-PV 1007/3, middle cervical vertebra in

right lateral view. Lateral fossae of the centrum (hypothesized as pneumatic in origin) indicated by arrows.
Taxons Katepensaurus

Cervical vertebrae of rebbachisaurid sauropod Katepensaurus goicoecheai Ibiricu, Casal, Martínez, Lamanna, Luna, and Salgado, 2013a from the Cenomanian–Turonian Bajo Barreal Formation of Chubut Province, Argentina. A. UNPSJB-PV 1007/1, anterior cervical vertebra in anterior (A1) and right ventrolateral (A2) views. B. UNPSJB-PV 1007/2, anterior cervical vertebra in right lateral view. C. UNPSJB-PV 1007/3, middle cervical vertebra in right lateral view. Lateral fossae of the centrum (hypothesized as pneumatic in origin) indicated by arrows.

vertèbre Argentine Cénomanien Turonien +3
Reconstruction of the holotype material of Silutitan sinensis (IVPP V27874), a Cretaceous euhelopid sauropod from the Chinese Shengjinkou Formation, scaled after Euhelopus zdanskyi. Silhouette modified from  "Euhelopus zdanskyi Skeletal" by Gunnar Bivens (CC BY 3.0) (https://www.deviantart.com/gunnarbivens/art/Euhelopus-zdanskyi-Skeletal-833724646)
Taxons Silutitan

Reconstruction of the holotype material of Silutitan sinensis (IVPP V27874), a Cretaceous euhelopid sauropod from the Chinese Shengjinkou Formation, scaled after Euhelopus zdanskyi. Silhouette modified from "Euhelopus zdanskyi Skeletal" by Gunnar Bivens (CC BY 3.0) (https://www.deviantart.com/gunnarbivens/art/Euhelopus-zdanskyi-Skeletal-833724646)

Crétacé holotype Euhelopus Silutitan +1
This file represents a possible life appearance of the Indian Titanosaurian Sauropod dinosaur Jainosaurus septentrionalis from the Late Cretaceous (Maastrichtian) of India, belonging to the Lameta Formation.
References used: 
Huene & Matley (1933)
Hunt et al. (1995)
Gunnar Bivens' skeletal diagram

Wilson et al. (2008) "Reassessment of Sauropod Dinosaur Jainosaurus (="Antarctosaurus") Septentrionalis from the Upper Cretaceous of India"
Taxons Jainosaurus

This file represents a possible life appearance of the Indian Titanosaurian Sauropod dinosaur Jainosaurus septentrionalis from the Late Cretaceous (Maastrichtian) of India, belonging to the Lameta Formation. References used: Huene & Matley (1933) Hunt et al. (1995) Gunnar Bivens' skeletal diagram Wilson et al. (2008) "Reassessment of Sauropod Dinosaur Jainosaurus (="Antarctosaurus") Septentrionalis from the Upper Cretaceous of India"

Inde Lameta Crétacé Crétacé supérieur +6
Representative taxa from the early Campanian Muthmannsdorf fauna from the Grünbach Formation, eastern Austria. A Doratodon carcharidens (Mesoeucrocodylia) mandible (PIUW 2349/57) in dorsal view (photo by Márton Rabi) B Indeterminate azhdarchid (Pterosauria, Azhdarchidae), left humerus (PIUW 2349/102) in anterior view C ‘Megalosaurus pannoniensis’ basal tetanuran (Theropoda, Tetanurae), tooth (PIUW uncatalogued) in lateral view D Mochlodon suessi (Ornithopoda, Rhabdodontidae), right dentary (holotype, PIUW 2349/2) in medial view. Scale bars equal 2 cm in A, B and D and 1 cm in C.

Representative taxa from the early Campanian Muthmannsdorf fauna from the Grünbach Formation, eastern Austria. A Doratodon carcharidens (Mesoeucrocodylia) mandible (PIUW 2349/57) in dorsal view (photo by Márton Rabi) B Indeterminate azhdarchid (Pterosauria, Azhdarchidae), left humerus (PIUW 2349/102) in anterior view C ‘Megalosaurus pannoniensis’ basal tetanuran (Theropoda, Tetanurae), tooth (PIUW uncatalogued) in lateral view D Mochlodon suessi (Ornithopoda, Rhabdodontidae), right dentary (holotype, PIUW 2349/2) in medial view. Scale bars equal 2 cm in A, B and D and 1 cm in C.

humérus écaille dent Autriche +11
Right dentary of Zalmoxes shqiperorum holotype NHMUK R4900in dorsal and lateral views, from the Sinpetru Formation of Sânpetru (Romania; outline based on the specimen UBB NVZ1-1).

Right dentary of Zalmoxes shqiperorum holotype NHMUK R4900in dorsal and lateral views, from the Sinpetru Formation of Sânpetru (Romania; outline based on the specimen UBB NVZ1-1).

Roumanie holotype spécimen Mochlodon +2
Dentaries of selected European rhabdodontomorphs in dorsal and lateral views. (A) Obelignathus septimanicus, holotype MDE D30, right dentary from the 'Grès à Reptiles' Formation, Montouliers (France); (B) Mochlodon vorosi holotype MTM V 2010.105.1, left dentary from the Csehbánya Formation, Iharkút (Hungary; mirrored); (C) Mochlodon suessi, lectotype PIUW 2349/2, right dentary from the Grünbach Formation, Muthmannsdorf (Austria); (D) Zalmoxes robustus holotype NHMUK R3392, right dentary from the Sinpetru Formation, Sânpetru (Romania); (E) Rhabdodon priscus, lectotype MPLM 30, left dentary from the Marnes Rouges Inférieures Formation, la Nerthe (France; mirrored drawing after Matheron; outline based on specimens MPLM 30 and MPLM 31, size estimation based on Matheron and Brinkman); (F) Zalmoxes shqiperorum holotype NHMUK R4900, right dentary from the Sinpetru Formation of Sânpetru (Romania; outline based on the specimen UBB NVZ1-1).

Dentaries of selected European rhabdodontomorphs in dorsal and lateral views. (A) Obelignathus septimanicus, holotype MDE D30, right dentary from the 'Grès à Reptiles' Formation, Montouliers (France); (B) Mochlodon vorosi holotype MTM V 2010.105.1, left dentary from the Csehbánya Formation, Iharkút (Hungary; mirrored); (C) Mochlodon suessi, lectotype PIUW 2349/2, right dentary from the Grünbach Formation, Muthmannsdorf (Austria); (D) Zalmoxes robustus holotype NHMUK R3392, right dentary from the Sinpetru Formation, Sânpetru (Romania); (E) Rhabdodon priscus, lectotype MPLM 30, left dentary from the Marnes Rouges Inférieures Formation, la Nerthe (France; mirrored drawing after Matheron; outline based on specimens MPLM 30 and MPLM 31, size estimation based on Matheron and Brinkman); (F) Zalmoxes shqiperorum holotype NHMUK R4900, right dentary from the Sinpetru Formation of Sânpetru (Romania; outline based on the specimen UBB NVZ1-1).

dessin Autriche France Hongrie +8
Representative taxa from the Santonian Iharkút fauna from the Csehbánya Formation, Bakony Mountains, western Hungary. A Pannoniasaurus inexpectatus (Squamata, Mosasauroidea), dorsal vertebra (MTM uncatalogued) in dorsal view (photo by Réka Kalmár) B Foxemys trabanti (Pleurodira, Bothremydidae), skull (MTM V 2010.215.1.) in dorsal view (photo by Márton Rabi). C Bicuspidon aff. hatzegiensis (Squamata, Borioteiioidea), left dentary (MTM 2006.112.1.) in medial view (photo by László Makádi) D Basal tetanuran (Theropoda, Tetanurae), tooth (MTM V.01.54) in ?lingual view E Indeterminate abelisaurid (Theropoda, Abelisauridae), pedal ungual phalanx (MTM V 2008.43.1.) in lateral view F Pneumatoraptor fodori (Theropoda, Paraves), left scapulocoracoid (holotype, MTM V 2008.38.1.) in lateral view G Mochlodon vorosi (Ornithopoda, Rhabdodontidae), left dentary (holotype, MTM V 2010.105.1) in lateral view H Bakonydraco galaczi (Pterosauria, Azhdarchidae), mandible (holotype, MTM 2007.110.1) in dorsal view I Iharkutosuchus makadii (Eusuchia, Hylaeochampsidae), skull (holotype, MTM 2006.52.1) in dorsal view J Hungarosaurus tormai (Ankylosauria, Nodosauridae), right dentary (MTM 2007.25.2) in lateral view K Bauxitornis mindszentyae (Aves, Enantiornithes), left tarsometatarsus (holotype, MTM V 2009.38.1) in anterior view L Ajkaceratops kozmai (Ceratopsia), fused rostral and premaxillae (holotype, MTM V 2009.192.1) in lateral view. Scale bars: 2 cm in A, V, G, H, I, J; 1 cm in D, E, F, K, L; 1 mm in C.

Representative taxa from the Santonian Iharkút fauna from the Csehbánya Formation, Bakony Mountains, western Hungary. A Pannoniasaurus inexpectatus (Squamata, Mosasauroidea), dorsal vertebra (MTM uncatalogued) in dorsal view (photo by Réka Kalmár) B Foxemys trabanti (Pleurodira, Bothremydidae), skull (MTM V 2010.215.1.) in dorsal view (photo by Márton Rabi). C Bicuspidon aff. hatzegiensis (Squamata, Borioteiioidea), left dentary (MTM 2006.112.1.) in medial view (photo by László Makádi) D Basal tetanuran (Theropoda, Tetanurae), tooth (MTM V.01.54) in ?lingual view E Indeterminate abelisaurid (Theropoda, Abelisauridae), pedal ungual phalanx (MTM V 2008.43.1.) in lateral view F Pneumatoraptor fodori (Theropoda, Paraves), left scapulocoracoid (holotype, MTM V 2008.38.1.) in lateral view G Mochlodon vorosi (Ornithopoda, Rhabdodontidae), left dentary (holotype, MTM V 2010.105.1) in lateral view H Bakonydraco galaczi (Pterosauria, Azhdarchidae), mandible (holotype, MTM 2007.110.1) in dorsal view I Iharkutosuchus makadii (Eusuchia, Hylaeochampsidae), skull (holotype, MTM 2006.52.1) in dorsal view J Hungarosaurus tormai (Ankylosauria, Nodosauridae), right dentary (MTM 2007.25.2) in lateral view K Bauxitornis mindszentyae (Aves, Enantiornithes), left tarsometatarsus (holotype, MTM V 2009.38.1) in anterior view L Ajkaceratops kozmai (Ceratopsia), fused rostral and premaxillae (holotype, MTM V 2009.192.1) in lateral view. Scale bars: 2 cm in A, V, G, H, I, J; 1 cm in D, E, F, K, L; 1 mm in C.

dent vertèbre Hongrie Santonien +14
Representative taxa from the latest Campanian–Maastrichtian faunas from Transylvania, western Romania. A–B Nidophis insularis (Serpentes, Madtsoiidae), articulated vertebrae (LPB (FGGUB) v.547/2) in left lateral (A) and dorsal (B) views (Densuş-Ciula Formation, Tuştea, Haţeg Basin; photo by Ştefan Vasile) C Allodaposuchus precedens (Eusuchia, ?Hylaeochampsidae), skull (PSMUBB V 438) in dorsal view (Sebeş = Şard Formation, Oarda de Jos, southwestern Transylvanian Basin; photo by Vlad Codrea/Massimo Delfino) D Theriosuchus sympiestodon (Mesoeucrocodylia, Atoposauridae), right maxilla (MCDRD 793) in lateral view (Sînpetru Formation, Sînpetru, Haţeg Basin) E–F Indeterminate titanosaur (?Magyarosaurus dacus) (Sauropoda, Titanosauria), isolated osteoderm (LPB (FGGUB) R.1410) in dorsal (E) and lateral (F) views (Sînpetru Formation, Sînpetru, Haţeg Basin) G Indeterminate ornithuran bird (Aves, Ornithurae), incomplete left tibiotarsus (LPB (FGGUB) R.1902) in anterior view (Densuş-Ciula Formation, Vălioara, Haţeg Basin) H Balaur bondoc (Theropoda, Dromaeosauridae), articulated left distal hindlimb (EME PV.313) in lateral view (Sebeş = Şard Formation, Sebeş-Glod, southewestern Transylvanian Basin; photo by Mick Ellison) I Zalmoxes robustus (Ornithopoda, Rhabdodontidae), right dentary (NHMUK R.3407) in medial view (Sînpetru Formation, Sînpetru, Haţeg Basin) J Telmatosaurus transsylvanicus (Hadrosauria), right maxilla (MFGI unnumbered) in lateral view (Sînpetru Formation, Sînpetru, Haţeg Basin) K Indeterminate nodosaurid – Struthiosaurus transylvanicus or new taxon – (Ankylosauria, Nodosauridae), isolated tooth (LPB (FGGUB) R.2182) in medial view (Sînpetru Formation, Sînpetru, Haţeg Basin) L Barbatodon transylvanicus (Multituberculata, Kogaionidae), right maxilla (LPB (FGGUB) M.1635) in medial view (Sînpetru Formation, Pui, Haţeg Basin). Scale bars equal 1 mm in A, B; 5 mm in K; 1 cm in G, L; 2 cm in D; and 5 cm in C, E, F, H, I, J.

Representative taxa from the latest Campanian–Maastrichtian faunas from Transylvania, western Romania. A–B Nidophis insularis (Serpentes, Madtsoiidae), articulated vertebrae (LPB (FGGUB) v.547/2) in left lateral (A) and dorsal (B) views (Densuş-Ciula Formation, Tuştea, Haţeg Basin; photo by Ştefan Vasile) C Allodaposuchus precedens (Eusuchia, ?Hylaeochampsidae), skull (PSMUBB V 438) in dorsal view (Sebeş = Şard Formation, Oarda de Jos, southwestern Transylvanian Basin; photo by Vlad Codrea/Massimo Delfino) D Theriosuchus sympiestodon (Mesoeucrocodylia, Atoposauridae), right maxilla (MCDRD 793) in lateral view (Sînpetru Formation, Sînpetru, Haţeg Basin) E–F Indeterminate titanosaur (?Magyarosaurus dacus) (Sauropoda, Titanosauria), isolated osteoderm (LPB (FGGUB) R.1410) in dorsal (E) and lateral (F) views (Sînpetru Formation, Sînpetru, Haţeg Basin) G Indeterminate ornithuran bird (Aves, Ornithurae), incomplete left tibiotarsus (LPB (FGGUB) R.1902) in anterior view (Densuş-Ciula Formation, Vălioara, Haţeg Basin) H Balaur bondoc (Theropoda, Dromaeosauridae), articulated left distal hindlimb (EME PV.313) in lateral view (Sebeş = Şard Formation, Sebeş-Glod, southewestern Transylvanian Basin; photo by Mick Ellison) I Zalmoxes robustus (Ornithopoda, Rhabdodontidae), right dentary (NHMUK R.3407) in medial view (Sînpetru Formation, Sînpetru, Haţeg Basin) J Telmatosaurus transsylvanicus (Hadrosauria), right maxilla (MFGI unnumbered) in lateral view (Sînpetru Formation, Sînpetru, Haţeg Basin) K Indeterminate nodosaurid – Struthiosaurus transylvanicus or new taxon – (Ankylosauria, Nodosauridae), isolated tooth (LPB (FGGUB) R.2182) in medial view (Sînpetru Formation, Sînpetru, Haţeg Basin) L Barbatodon transylvanicus (Multituberculata, Kogaionidae), right maxilla (LPB (FGGUB) M.1635) in medial view (Sînpetru Formation, Pui, Haţeg Basin). Scale bars equal 1 mm in A, B; 5 mm in K; 1 cm in G, L; 2 cm in D; and 5 cm in C, E, F, H, I, J.

Roumanie Densuş-Ciula Sebeş Sînpetru +9
Untere Sulfatschichten, Heilbronn-Formation, Mittlerer Muschelkalk, Löwenburg bei Braunsbach-Geislingen
Intervalles Anisian

Untere Sulfatschichten, Heilbronn-Formation, Mittlerer Muschelkalk, Löwenburg bei Braunsbach-Geislingen

formation
Zechstein unconformity and basal Zechstein beds (basal Werra-Formation, lower Upper Permian) including copper shale (brownish weathered), exposed on the upper level of the open cast mine Kamsdorf, near Saalfeld, Thuringia, Germany.
Intervalles Wuchiapingian

Zechstein unconformity and basal Zechstein beds (basal Werra-Formation, lower Upper Permian) including copper shale (brownish weathered), exposed on the upper level of the open cast mine Kamsdorf, near Saalfeld, Thuringia, Germany.

Allemagne Permien moulage formation
Banded iron formation from the Precambrian of Wyoming, USA. (~10.9 cm across at its widest)
Banded iron formations, or BIFs, are unusual, dense sedimentary rocks consisting of alternating layers of iron-rich oxides and iron-rich silicates.  Most BIFs are Proterozoic in age (although some are Late Archean), and do not form today - they're “extinct”!  Many specific varieties of iron formation are known, and some are given special rock names.  For example, jaspilite is an attractive reddish & silvery gray banded rock consisting of hematite, red chert (“jasper”), and specular hematite or magnetite.
Because of their age, most BIFs have been around long enough to have been subjected to one or more orogenic (mountain-building) events.  As such, most BIFs are folded and/or metamorphosed to varying degrees. 
BIFs are known from around the world, but some of the most famous & extensive BIF deposits are found in the vicinity of North America’s Lake Superior Basin.  Many BIFs have economic concentrations of iron and are mined.  BIFs are the most important variety of iron ore on Earth.
Some iron mines in west-central Wyoming exploit BIFs in the Goldman Meadows Formation, a Mesoarchean unit exposed in the Wind River Range.  These rocks have been multiply metamorphosed during the Precambrian.  The result of this metamorphism is highly contorted folding and fracturing.  The rock shown above is a folded quartz-hematite-limonite meta-BIF.
Stratigraphy: iron formation member (probably the upper iron formation member) of the Goldman Meadows Formation, upper Mesoarchean, 2.87 Ga (metamorphosed in the Archean at 2.8 Ga and in the Mesoproterozoic at 1.4 Ga)
Geologic context: northwestern flank of the South Pass Greenstone Belt, southern Wind River Range

Locality: Atlantic City Iron Mine (open-pit mine; sample possibly collected from tailings piles around the now-flooded pit) (E1/2 of section 26, T30N, R100W, Miners Delight 7.5' USGS topographic quadrangle), South Pass-Atlantic City Mining District, along Rt. 28, southwestern side of South Pass, north of Atlantic City, southwestern Fremont County, west-central Wyoming, USA (mine is at 42° 32' 45" North latitude, 108° 44' 33" West longitude)
Intervalles Mesoarchean

Banded iron formation from the Precambrian of Wyoming, USA. (~10.9 cm across at its widest) Banded iron formations, or BIFs, are unusual, dense sedimentary rocks consisting of alternating layers of iron-rich oxides and iron-rich silicates. Most BIFs are Proterozoic in age (although some are Late Archean), and do not form today - they're “extinct”! Many specific varieties of iron formation are known, and some are given special rock names. For example, jaspilite is an attractive reddish & silvery gray banded rock consisting of hematite, red chert (“jasper”), and specular hematite or magnetite. Because of their age, most BIFs have been around long enough to have been subjected to one or more orogenic (mountain-building) events. As such, most BIFs are folded and/or metamorphosed to varying degrees. BIFs are known from around the world, but some of the most famous & extensive BIF deposits are found in the vicinity of North America’s Lake Superior Basin. Many BIFs have economic concentrations of iron and are mined. BIFs are the most important variety of iron ore on Earth. Some iron mines in west-central Wyoming exploit BIFs in the Goldman Meadows Formation, a Mesoarchean unit exposed in the Wind River Range. These rocks have been multiply metamorphosed during the Precambrian. The result of this metamorphism is highly contorted folding and fracturing. The rock shown above is a folded quartz-hematite-limonite meta-BIF. Stratigraphy: iron formation member (probably the upper iron formation member) of the Goldman Meadows Formation, upper Mesoarchean, 2.87 Ga (metamorphosed in the Archean at 2.8 Ga and in the Mesoproterozoic at 1.4 Ga) Geologic context: northwestern flank of the South Pass Greenstone Belt, southern Wind River Range Locality: Atlantic City Iron Mine (open-pit mine; sample possibly collected from tailings piles around the now-flooded pit) (E1/2 of section 26, T30N, R100W, Miners Delight 7.5' USGS topographic quadrangle), South Pass-Atlantic City Mining District, along Rt. 28, southwestern side of South Pass, north of Atlantic City, southwestern Fremont County, west-central Wyoming, USA (mine is at 42° 32' 45" North latitude, 108° 44' 33" West longitude)

États-Unis Archéen Protérozoïque formation
This artist's concept shows a celestial body about the size of our moon slamming at great speed into a body the size of Mercury. NASA's Spitzer Space Telescope found evidence that a high-speed collision of this sort occurred a few thousand years ago around a young star, called HD 172555, still in the early stages of planet formation. The star is about 100 light-years from Earth.
Intervalles Hadean

This artist's concept shows a celestial body about the size of our moon slamming at great speed into a body the size of Mercury. NASA's Spitzer Space Telescope found evidence that a high-speed collision of this sort occurred a few thousand years ago around a young star, called HD 172555, still in the early stages of planet formation. The star is about 100 light-years from Earth.

formation
Palaeogeographic distribution of late Early and early Late Cretaceous pterosaur assemblages. Taxonomic composition of assemblages shown on Fig. 1. Palaeogeography based on Smith et al. 1994. Abbreviations: 1. Cambridge Greensand, England: 2. Lower Chalk, England: 3. Züümbayan Svita, Khuren-Dukh, Mongolia: 4. Lysaya Gora, Saratov, Russia: 5. Kem Kem red beds, Morocco: 6. Paw Paw Formation, Texas, USA: 7. Lagarcito Formation, San Luis, Argentina: 8. Santana and Crato Formations, Ceara, Brazil: 9. Toolebuc Formation, Queensland, Australia.

Palaeogeographic distribution of late Early and early Late Cretaceous pterosaur assemblages. Taxonomic composition of assemblages shown on Fig. 1. Palaeogeography based on Smith et al. 1994. Abbreviations: 1. Cambridge Greensand, England: 2. Lower Chalk, England: 3. Züümbayan Svita, Khuren-Dukh, Mongolia: 4. Lysaya Gora, Saratov, Russia: 5. Kem Kem red beds, Morocco: 6. Paw Paw Formation, Texas, USA: 7. Lagarcito Formation, San Luis, Argentina: 8. Santana and Crato Formations, Ceara, Brazil: 9. Toolebuc Formation, Queensland, Australia.

Argentine Australie Brésil Mongolie +8
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
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Actualités

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Des scientifiques viennent de découvrir que l’Afrique est plus proche de l’éclatement que nous le pensions
fossile formation
Sous le rift Turkana, en Afrique de l’Est, les scientifiques ont découvert que la croûte s’amincit jusqu’à atteindre un point critique, ce qui suggère que le continent se désagrège progressivement. Ce processus de « rétrécissement » marque un stade avancé de rifting qui pourrait éventuellement conduire à la formation d’un nouvel océan dans des millions d’années. Étonnamment, les mêmes forces géologiques qui divisent la terre peuvent également expliquer pourquoi la région détient un registre fossile si riche. Au lieu d'être le berceau de l'humanité, Turkana pourrait bien être simplement le lieu où
25/04/2026 sciencedaily-paleo ⚙ Traduction automatique
D’étranges roches en « peau d’éléphant » révèlent une vie ancienne dans l’océan sombre
Maroc fossile découverte formation
Une étrange formation rocheuse ridée au Maroc a amené les scientifiques à repenser l'endroit où pourraient vivre d'anciens microbes. Au lieu d’eaux peu profondes et ensoleillées, ces microbes pourraient avoir prospéré dans les profondeurs de l’océan, alimentés par les produits chimiques libérés par les glissements de terrain sous-marins. La découverte suggère que les environnements sombres et riches en nutriments ont abrité des écosystèmes prospères beaucoup plus tôt que prévu. Cela soulève également la possibilité que de nombreux fossiles similaires aient été négligés ou mal interprétés.
03/04/2026 sciencedaily-paleo ⚙ Traduction automatique
Épisode 173 : Forêt pétrifiée
États-Unis Chinle Trias supérieur Trias formation
Le parc national de la Forêt Pétrifiée, dans le nord-est de l'Arizona, aux États-Unis, est une plaque tournante de la paléontologie du Trias et présente des affleurements représentant 20 millions d'années de la formation Chinle du Trias supérieur. Les visiteurs s'émerveillent devant les arbres fossilisés colorés dont le parc tire son nom, mais toute une série d'animaux ont élu domicile dans ces forêts marécageuses il y a 225 millions d'années [&hellip
17/03/2026 palaeocast ⚙ Traduction automatique
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