Protosuchus is an extinct genus of carnivorous crocodylomorph from the Early Jurassic. The name Protosuchus means "first crocodile", and is among the earliest animals that resemble crocodilians. Protosuchus was about 1 meter (3.3 ft) in length and about 40 kilograms (88 lb) in weight. The body was covered and reinforced by scales, and along of the back was a double row of bony plates. It was an unusual quadrupedal reptile whose legs were columnar, with the rear legs longer than the front legs. Its five toes were clawed and it is believed that they were good runners and good swimmers.
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| - thumb|400pxEra obviamente un cocodrilo terrestre, pues ha sido hallado en rocas donde también se han encontrado restos de dinosaurios. Debe de haber compartido el continente norteamericano con dinosaurios carnívoros, tales como los ágiles coelurosaurios bípedos, por ejemplo el Coelophysis y con los recién evolucionados carnosaurios.El cráneo de Protosuchus se parecía más al de un cocodrilo que el de los más primitivos esfenosuquios. Las cortas mandíbulas se ensanchaban en la base del hocico, hacia un área bastante amplia en la parte posterior del cráneo. Sobre esta amplia superficie tenían sus puntos de fijación los músculos de las mandíbulas, lo cual aumentaba la capacidad de apertura de la boca y la fuerza con que el animal podía cerrarla.Entre los afilados dientes, había dos largas piez
- Protosuchus is an extinct genus of carnivorous crocodylomorph from the Early Jurassic. The name Protosuchus means "first crocodile", and is among the earliest animals that resemble crocodilians. Protosuchus was about 1 meter (3.3 ft) in length and about 40 kilograms (88 lb) in weight. The body was covered and reinforced by scales, and along of the back was a double row of bony plates. It was an unusual quadrupedal reptile whose legs were columnar, with the rear legs longer than the front legs. Its five toes were clawed and it is believed that they were good runners and good swimmers.
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| - Protosuchus is an extinct genus of carnivorous crocodylomorph from the Early Jurassic. The name Protosuchus means "first crocodile", and is among the earliest animals that resemble crocodilians. Protosuchus was about 1 meter (3.3 ft) in length and about 40 kilograms (88 lb) in weight. As an early crocodile relative, its skull featured more crocodilian characteristics than its earlier ancestors; it had short jaws that broadened out at the base of the skull, providing a large surface to which its jaw muscles could attach. This increased the maximum gape of the animal's mouth and the force with which the jaws could be closed. The dentition of the animal also resembled modern crocodiles, including the teeth in the lower jaw that fitted into notches on either side of the upper jaw when the mouth was closed. It also possessed a powerful tail which later developed into a propulsion mechanism through water in its descendants. The body was covered and reinforced by scales, and along of the back was a double row of bony plates. It was an unusual quadrupedal reptile whose legs were columnar, with the rear legs longer than the front legs. Its five toes were clawed and it is believed that they were good runners and good swimmers.
- thumb|400pxEra obviamente un cocodrilo terrestre, pues ha sido hallado en rocas donde también se han encontrado restos de dinosaurios. Debe de haber compartido el continente norteamericano con dinosaurios carnívoros, tales como los ágiles coelurosaurios bípedos, por ejemplo el Coelophysis y con los recién evolucionados carnosaurios.El cráneo de Protosuchus se parecía más al de un cocodrilo que el de los más primitivos esfenosuquios. Las cortas mandíbulas se ensanchaban en la base del hocico, hacia un área bastante amplia en la parte posterior del cráneo. Sobre esta amplia superficie tenían sus puntos de fijación los músculos de las mandíbulas, lo cual aumentaba la capacidad de apertura de la boca y la fuerza con que el animal podía cerrarla.Entre los afilados dientes, había dos largas piezas semejantes a caninos en la parte frontal del maxilar inferior, que encajaban en dos muescas del maxilar superior cuando el animal cerraba la boca.Esta disposición dentaria es característica de los cocodrilos modernos. También los caimanes tienen caninos inferiores, pero no encajan en muescas, sino en alveolos óseos del maxilar superior. Categoría:Reptiles Categoría:Cocodrilos Categoría:Cocodrilos acuáticos Categoría:Cocodrilos de agua dulce Categoría:Fauna del Jurásico
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