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The nodosaurid dinosaur, Glyptodontopelta is mostly known from isolated osteoderms ("armor plates"). The specimen SMP VP-1580 (State Museum of Pennysylvania) is however, the most complete known specimen, comprising parts of the skull, hundreds of osteoderms and fragments. This specimen was discovered in 2003 by Warwick Fowler, in the Naashoibito Member of the Ojo Alamo Formation (Maatrichtian, Late Cretaceous) of the San Juan Basin, New Mexico, during an expedition led by Dr. Robert Sullivan.
Taxons Glyptodontopelta

The nodosaurid dinosaur, Glyptodontopelta is mostly known from isolated osteoderms ("armor plates"). The specimen SMP VP-1580 (State Museum of Pennysylvania) is however, the most complete known specimen, comprising parts of the skull, hundreds of osteoderms and fragments. This specimen was discovered in 2003 by Warwick Fowler, in the Naashoibito Member of the Ojo Alamo Formation (Maatrichtian, Late Cretaceous) of the San Juan Basin, New Mexico, during an expedition led by Dr. Robert Sullivan.

armure musée Mexique Denver +9
Photograph of Museo civico di scienze naturali di Bergamo (MCSNB) 2888, the holotype specimen of Eudimorphodon ranzii ZAMBELLI 1973, a basal pterosaur from the Norian (middle Upper Triassic) of the Italian Alps.[1]


↑ see fig. 8A in Silvio Renesto (2006): A reappraisal of the diversity and biogeographic significance of the Norian (Late Triassic) reptiles from the Calcare di Zorzino. In: Jerry D. Harris, Spencer G. Lucas, Justin A. Spielmann, Martin G. Lockley, Andrew R.C. Milner, James I. Kirkland (eds.): The Triassic-Jurassic Terrestrial Transition. New Mexico Museum of Natural History and Science Bulletin 37:445–456 (online)
Taxons Eudimorphodon

Photograph of Museo civico di scienze naturali di Bergamo (MCSNB) 2888, the holotype specimen of Eudimorphodon ranzii ZAMBELLI 1973, a basal pterosaur from the Norian (middle Upper Triassic) of the Italian Alps.[1] ↑ see fig. 8A in Silvio Renesto (2006): A reappraisal of the diversity and biogeographic significance of the Norian (Late Triassic) reptiles from the Calcare di Zorzino. In: Jerry D. Harris, Spencer G. Lucas, Justin A. Spielmann, Martin G. Lockley, Andrew R.C. Milner, James I. Kirkland (eds.): The Triassic-Jurassic Terrestrial Transition. New Mexico Museum of Natural History and Science Bulletin 37:445–456 (online)

musée Mexique Jurassique Trias supérieur +6
Coelophysis bauri (Cope, 1887) theropod dinosaur from the Triassic of New Mexico, USA.
This is a remarkable complete skeleton of the small early theropod Coelophysis.  It comes from a nearly monospecific concentration of numerous complete to disarticulated skeletons in reddish-colored fluvial siltstones, often called a "Coelophysis graveyard".  This occurrence has been interpreted as a carcass-jammed channel filling following mass mortality of dinosaurs by regional drought (see Schwartz & Gillette, 1994).
Stratigraphy: Rock Point Member, Chinle Formation, Upper Triassic
Locality: Whitaker Quarry (Coelophysis Quarry), Ghost Ranch, Rio Arriba County, northern New Mexico, USA


Some info. from:
Hunt, A.P. & S.G. Lucas.  1991.  Rioarribasaurus, a new name for a Late Triassic dinosaur from New Mexico (USA).  Paläontologische Zeitschrift  65: 191-198.
Schwartz, H.L. & D.D. Gillette.  1994.  Geology and taphonomy of the Coelophysis Quarry, Upper Triassic Chinle Formation, Ghost Ranch, New Mexico.  Journal of Paleontology 68: 1118-1130.


Theropod were small to large, bipedal dinosaurs.  Almost all known members of the group were carnivorous (predators and/or scavengers).  They represent the ancestral group to the birds, and some theropods are known to have had feathers.  Some of the most well known dinosaurs to the general public are theropods, such as Tyrannosaurus, Allosaurus, and Spinosaurus.
Taxons Coelophysis

Coelophysis bauri (Cope, 1887) theropod dinosaur from the Triassic of New Mexico, USA. This is a remarkable complete skeleton of the small early theropod Coelophysis. It comes from a nearly monospecific concentration of numerous complete to disarticulated skeletons in reddish-colored fluvial siltstones, often called a "Coelophysis graveyard". This occurrence has been interpreted as a carcass-jammed channel filling following mass mortality of dinosaurs by regional drought (see Schwartz & Gillette, 1994). Stratigraphy: Rock Point Member, Chinle Formation, Upper Triassic Locality: Whitaker Quarry (Coelophysis Quarry), Ghost Ranch, Rio Arriba County, northern New Mexico, USA Some info. from: Hunt, A.P. & S.G. Lucas. 1991. Rioarribasaurus, a new name for a Late Triassic dinosaur from New Mexico (USA). Paläontologische Zeitschrift 65: 191-198. Schwartz, H.L. & D.D. Gillette. 1994. Geology and taphonomy of the Coelophysis Quarry, Upper Triassic Chinle Formation, Ghost Ranch, New Mexico. Journal of Paleontology 68: 1118-1130. Theropod were small to large, bipedal dinosaurs. Almost all known members of the group were carnivorous (predators and/or scavengers). They represent the ancestral group to the birds, and some theropods are known to have had feathers. Some of the most well known dinosaurs to the general public are theropods, such as Tyrannosaurus, Allosaurus, and Spinosaurus.

Mexique États-Unis Chinle Trias supérieur +12
Coelophysis bauri (Cope, 1887) theropod dinosaur from the Triassic of New Mexico, USA.
This is a remarkable complete skeleton of the small early theropod Coelophysis.  It comes from a nearly monospecific concentration of numerous complete to disarticulated skeletons in reddish-colored fluvial siltstones, often called a "Coelophysis graveyard".  This occurrence has been interpreted as a carcass-jammed channel filling following mass mortality of dinosaurs by regional drought (see Schwartz & Gillette, 1994).
Stratigraphy: Rock Point Member, Chinle Formation, Upper Triassic
Locality: Whitaker Quarry (Coelophysis Quarry), Ghost Ranch, Rio Arriba County, northern New Mexico, USA


Some info. from:
Hunt, A.P. & S.G. Lucas.  1991.  Rioarribasaurus, a new name for a Late Triassic dinosaur from New Mexico (USA).  Paläontologische Zeitschrift  65: 191-198.
Schwartz, H.L. & D.D. Gillette.  1994.  Geology and taphonomy of the Coelophysis Quarry, Upper Triassic Chinle Formation, Ghost Ranch, New Mexico.  Journal of Paleontology 68: 1118-1130.


Theropod were small to large, bipedal dinosaurs.  Almost all known members of the group were carnivorous (predators and/or scavengers).  They represent the ancestral group to the birds, and some theropods are known to have had feathers.  Some of the most well known dinosaurs to the general public are theropods, such as Tyrannosaurus, Allosaurus, and Spinosaurus.
Taxons Coelophysoidea

Coelophysis bauri (Cope, 1887) theropod dinosaur from the Triassic of New Mexico, USA. This is a remarkable complete skeleton of the small early theropod Coelophysis. It comes from a nearly monospecific concentration of numerous complete to disarticulated skeletons in reddish-colored fluvial siltstones, often called a "Coelophysis graveyard". This occurrence has been interpreted as a carcass-jammed channel filling following mass mortality of dinosaurs by regional drought (see Schwartz & Gillette, 1994). Stratigraphy: Rock Point Member, Chinle Formation, Upper Triassic Locality: Whitaker Quarry (Coelophysis Quarry), Ghost Ranch, Rio Arriba County, northern New Mexico, USA Some info. from: Hunt, A.P. & S.G. Lucas. 1991. Rioarribasaurus, a new name for a Late Triassic dinosaur from New Mexico (USA). Paläontologische Zeitschrift 65: 191-198. Schwartz, H.L. & D.D. Gillette. 1994. Geology and taphonomy of the Coelophysis Quarry, Upper Triassic Chinle Formation, Ghost Ranch, New Mexico. Journal of Paleontology 68: 1118-1130. Theropod were small to large, bipedal dinosaurs. Almost all known members of the group were carnivorous (predators and/or scavengers). They represent the ancestral group to the birds, and some theropods are known to have had feathers. Some of the most well known dinosaurs to the general public are theropods, such as Tyrannosaurus, Allosaurus, and Spinosaurus.

Mexique États-Unis Chinle Trias supérieur +12
Coelophysis bauri (Cope, 1887) theropod dinosaur from the Triassic of New Mexico, USA.
This is a remarkable complete skeleton of the small early theropod Coelophysis.  It comes from a nearly monospecific concentration of numerous complete to disarticulated skeletons in reddish-colored fluvial siltstones, often called a "Coelophysis graveyard".  This occurrence has been interpreted as a carcass-jammed channel filling following mass mortality of dinosaurs by regional drought (see Schwartz & Gillette, 1994).
Stratigraphy: Rock Point Member, Chinle Formation, Upper Triassic
Locality: Whitaker Quarry (Coelophysis Quarry), Ghost Ranch, Rio Arriba County, northern New Mexico, USA


Some info. from:
Hunt, A.P. & S.G. Lucas.  1991.  Rioarribasaurus, a new name for a Late Triassic dinosaur from New Mexico (USA).  Paläontologische Zeitschrift  65: 191-198.
Schwartz, H.L. & D.D. Gillette.  1994.  Geology and taphonomy of the Coelophysis Quarry, Upper Triassic Chinle Formation, Ghost Ranch, New Mexico.  Journal of Paleontology 68: 1118-1130.


Theropod were small to large, bipedal dinosaurs.  Almost all known members of the group were carnivorous (predators and/or scavengers).  They represent the ancestral group to the birds, and some theropods are known to have had feathers.  Some of the most well known dinosaurs to the general public are theropods, such as Tyrannosaurus, Allosaurus, and Spinosaurus.
Taxons Coelophysidae

Coelophysis bauri (Cope, 1887) theropod dinosaur from the Triassic of New Mexico, USA. This is a remarkable complete skeleton of the small early theropod Coelophysis. It comes from a nearly monospecific concentration of numerous complete to disarticulated skeletons in reddish-colored fluvial siltstones, often called a "Coelophysis graveyard". This occurrence has been interpreted as a carcass-jammed channel filling following mass mortality of dinosaurs by regional drought (see Schwartz & Gillette, 1994). Stratigraphy: Rock Point Member, Chinle Formation, Upper Triassic Locality: Whitaker Quarry (Coelophysis Quarry), Ghost Ranch, Rio Arriba County, northern New Mexico, USA Some info. from: Hunt, A.P. & S.G. Lucas. 1991. Rioarribasaurus, a new name for a Late Triassic dinosaur from New Mexico (USA). Paläontologische Zeitschrift 65: 191-198. Schwartz, H.L. & D.D. Gillette. 1994. Geology and taphonomy of the Coelophysis Quarry, Upper Triassic Chinle Formation, Ghost Ranch, New Mexico. Journal of Paleontology 68: 1118-1130. Theropod were small to large, bipedal dinosaurs. Almost all known members of the group were carnivorous (predators and/or scavengers). They represent the ancestral group to the birds, and some theropods are known to have had feathers. Some of the most well known dinosaurs to the general public are theropods, such as Tyrannosaurus, Allosaurus, and Spinosaurus.

Mexique États-Unis Chinle Trias supérieur +12
Coelophysis bauri (Cope, 1887) theropod dinosaur from the Triassic of New Mexico, USA.
This is a remarkable complete skeleton of the small early theropod Coelophysis.  It comes from a nearly monospecific concentration of numerous complete to disarticulated skeletons in reddish-colored fluvial siltstones, often called a "Coelophysis graveyard".  This occurrence has been interpreted as a carcass-jammed channel filling following mass mortality of dinosaurs by regional drought (see Schwartz & Gillette, 1994).
Stratigraphy: Rock Point Member, Chinle Formation, Upper Triassic
Locality: Whitaker Quarry (Coelophysis Quarry), Ghost Ranch, Rio Arriba County, northern New Mexico, USA


Some info. from:
Hunt, A.P. & S.G. Lucas.  1991.  Rioarribasaurus, a new name for a Late Triassic dinosaur from New Mexico (USA).  Paläontologische Zeitschrift  65: 191-198.
Schwartz, H.L. & D.D. Gillette.  1994.  Geology and taphonomy of the Coelophysis Quarry, Upper Triassic Chinle Formation, Ghost Ranch, New Mexico.  Journal of Paleontology 68: 1118-1130.


Theropod were small to large, bipedal dinosaurs.  Almost all known members of the group were carnivorous (predators and/or scavengers).  They represent the ancestral group to the birds, and some theropods are known to have had feathers.  Some of the most well known dinosaurs to the general public are theropods, such as Tyrannosaurus, Allosaurus, and Spinosaurus.
Taxons Coelophysinae

Coelophysis bauri (Cope, 1887) theropod dinosaur from the Triassic of New Mexico, USA. This is a remarkable complete skeleton of the small early theropod Coelophysis. It comes from a nearly monospecific concentration of numerous complete to disarticulated skeletons in reddish-colored fluvial siltstones, often called a "Coelophysis graveyard". This occurrence has been interpreted as a carcass-jammed channel filling following mass mortality of dinosaurs by regional drought (see Schwartz & Gillette, 1994). Stratigraphy: Rock Point Member, Chinle Formation, Upper Triassic Locality: Whitaker Quarry (Coelophysis Quarry), Ghost Ranch, Rio Arriba County, northern New Mexico, USA Some info. from: Hunt, A.P. & S.G. Lucas. 1991. Rioarribasaurus, a new name for a Late Triassic dinosaur from New Mexico (USA). Paläontologische Zeitschrift 65: 191-198. Schwartz, H.L. & D.D. Gillette. 1994. Geology and taphonomy of the Coelophysis Quarry, Upper Triassic Chinle Formation, Ghost Ranch, New Mexico. Journal of Paleontology 68: 1118-1130. Theropod were small to large, bipedal dinosaurs. Almost all known members of the group were carnivorous (predators and/or scavengers). They represent the ancestral group to the birds, and some theropods are known to have had feathers. Some of the most well known dinosaurs to the general public are theropods, such as Tyrannosaurus, Allosaurus, and Spinosaurus.

Mexique États-Unis Chinle Trias supérieur +12
Coelophysis bauri (Cope, 1887) theropod dinosaur from the Triassic of New Mexico, USA.
This is a remarkable complete skeleton of the small early theropod Coelophysis.  It comes from a nearly monospecific concentration of numerous complete to disarticulated skeletons in reddish-colored fluvial siltstones, often called a "Coelophysis graveyard".  This occurrence has been interpreted as a carcass-jammed channel filling following mass mortality of dinosaurs by regional drought (see Schwartz & Gillette, 1994).
Stratigraphy: Rock Point Member, Chinle Formation, Upper Triassic
Locality: Whitaker Quarry (Coelophysis Quarry), Ghost Ranch, Rio Arriba County, northern New Mexico, USA


Some info. from:
Hunt, A.P. & S.G. Lucas.  1991.  Rioarribasaurus, a new name for a Late Triassic dinosaur from New Mexico (USA).  Paläontologische Zeitschrift  65: 191-198.
Schwartz, H.L. & D.D. Gillette.  1994.  Geology and taphonomy of the Coelophysis Quarry, Upper Triassic Chinle Formation, Ghost Ranch, New Mexico.  Journal of Paleontology 68: 1118-1130.


Theropod were small to large, bipedal dinosaurs.  Almost all known members of the group were carnivorous (predators and/or scavengers).  They represent the ancestral group to the birds, and some theropods are known to have had feathers.  Some of the most well known dinosaurs to the general public are theropods, such as Tyrannosaurus, Allosaurus, and Spinosaurus.
Taxons Podokesaurinae

Coelophysis bauri (Cope, 1887) theropod dinosaur from the Triassic of New Mexico, USA. This is a remarkable complete skeleton of the small early theropod Coelophysis. It comes from a nearly monospecific concentration of numerous complete to disarticulated skeletons in reddish-colored fluvial siltstones, often called a "Coelophysis graveyard". This occurrence has been interpreted as a carcass-jammed channel filling following mass mortality of dinosaurs by regional drought (see Schwartz & Gillette, 1994). Stratigraphy: Rock Point Member, Chinle Formation, Upper Triassic Locality: Whitaker Quarry (Coelophysis Quarry), Ghost Ranch, Rio Arriba County, northern New Mexico, USA Some info. from: Hunt, A.P. & S.G. Lucas. 1991. Rioarribasaurus, a new name for a Late Triassic dinosaur from New Mexico (USA). Paläontologische Zeitschrift 65: 191-198. Schwartz, H.L. & D.D. Gillette. 1994. Geology and taphonomy of the Coelophysis Quarry, Upper Triassic Chinle Formation, Ghost Ranch, New Mexico. Journal of Paleontology 68: 1118-1130. Theropod were small to large, bipedal dinosaurs. Almost all known members of the group were carnivorous (predators and/or scavengers). They represent the ancestral group to the birds, and some theropods are known to have had feathers. Some of the most well known dinosaurs to the general public are theropods, such as Tyrannosaurus, Allosaurus, and Spinosaurus.

Mexique États-Unis Chinle Trias supérieur +12
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Actualités

Daemonosaurus: Beast of the Week
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Mexique États-Unis Trias supérieur Trias Daemonosaurus Dinosauria crâne
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Hesperosuchus: Beast of the Week
Hesperosuchus : Bête de la semaine
Mexique États-Unis Trias supérieur Trias fossile squelette
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01/02/2026 prehistoricbeastoftheweek ⚙ Traduction automatique
Pentaceratops: Beast of the Week
Pentaceratops : la bête de la semaine
Mexique États-Unis Crétacé Crétacé supérieur Ceratopsia Dinosauria Pentaceratops
Cette semaine, nous allons découvrir encore un autre superbe dinosaure cératopsien.  Entrez Pentaceratops sternbergii ! Pentaceratops était un dinosaure herbivore qui mesurait environ vingt pieds de long du bec à la queue. En tant que cératopsien (cornes, becs et volants), il faisait partie du groupe des chasmosaurines et était étroitement apparenté au Chasmosaurus et au Coahuilaceratops pour n'en nommer que quelques-uns.  Il vivait dans ce qui est aujourd’hui le Nouveau-Mexique, aux États-Unis, à la fin du Crétacé, il y a entre 76 et 73 millions d’années.  Le nom du genre,
14/09/2025 prehistoricbeastoftheweek ⚙ Traduction automatique
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