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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

Actualités

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