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| - Mastodonsaurus
- Mastodonsaurus
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| - Mastodonsaurus was a temnospondyl amphibian from the Middle Triassic. It only appeared in the companion book of Sea Monsters.
- thumb|400pxEl Mastodonsaurus era uno de los anfibios más grandes que han existido. Lo más destacable era su gran cráneo, de hasta 1,3 metros. Su largo hocico tenía dientes muy afilados y eficazes para la caza: en la parte frontal de la maxilar superior tenía varios colmillos de 7 cm, y en el inferior, de hasta 15 cm, tenía unos agujeros en la parte frontal del cráneo para guardarn estos colmillos, y antes se pensaba que eran cuernos. Ambos maxilares contaban con 200 dientes dispuestos en una doble hilera lateral. Sus miembros era débiles y tenía membrana interdigital. Mastodonsaurus: Este fue probablemente el anfibio más grande de todos. Podía alcanzar un poco más de 4 metros de largo. Sus mandíbulas estaban dotadas de fortísimos y afilados dientes curvos. Antes se creía que era un reptil,
- Mastodonsaurus was a large-headed temnospondyl that belonged to a group of advanced, mostly Triassic amphibians called capitosaurs. It was a giant among the stegocephalians and the largest animal of its time (Late Triassic, 200 MYA). It looked like a huge frog, but instead of being semicircular, as in frogs, its head was triangular and reached 1.25 m. in length. The large, oval eye sockets were midway along the skull. The jaws were armed with conical teeth. The body was relatively small in proportion to the large head, and the tail was very short. The greatly reduced limbs had cartilaginous carpal and tarsal joints. The marked reduction of the limbs and the sinus lines on the head show that Mastodonsaurus was an aquatic animal which hardly ever left water. It inhabited swampy pools and liv
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| - *M. giganteus
*M. jaegeri
*M. torvus
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| - Russia
- Great Britan
- Germany
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abstract
| - Mastodonsaurus was a large-headed temnospondyl that belonged to a group of advanced, mostly Triassic amphibians called capitosaurs. It was a giant among the stegocephalians and the largest animal of its time (Late Triassic, 200 MYA). It looked like a huge frog, but instead of being semicircular, as in frogs, its head was triangular and reached 1.25 m. in length. The large, oval eye sockets were midway along the skull. The jaws were armed with conical teeth. The body was relatively small in proportion to the large head, and the tail was very short. The greatly reduced limbs had cartilaginous carpal and tarsal joints. The marked reduction of the limbs and the sinus lines on the head show that Mastodonsaurus was an aquatic animal which hardly ever left water. It inhabited swampy pools and lived mainly on fish, whose remains have been found in its fossilized excrete (coprolites). According to some scientists, Mastodonsaurus was completely unable to leave the water, and this option is borne out by finds of large quantities of bones showing that in times of drought, when the pools died up, these creatures died en masse. Mastodonsaurus was once thought to be responsible for the footprints found in Triassic sandstones and described as Chirotherium, but more recent research had found that the tracks belong to lizard-like reptiles of the Pseudosuchia group. Recent studies have shown, however, that its body was less compact and the tail much longer, giving it an overall-appearance much like a crocodile. Two triangular tusks pointed up from near the tip of its lower jaw. When the jaws closed, these slotted through openings on the palate and projected through the top of the skull. The fossils of some smaller temnospondyls bear tooth marks made by Mastodonsaurus-like animals. It probably also ate fish, as well as land-living animals, such as small archosaurs.
- Mastodonsaurus was a temnospondyl amphibian from the Middle Triassic. It only appeared in the companion book of Sea Monsters.
- thumb|400pxEl Mastodonsaurus era uno de los anfibios más grandes que han existido. Lo más destacable era su gran cráneo, de hasta 1,3 metros. Su largo hocico tenía dientes muy afilados y eficazes para la caza: en la parte frontal de la maxilar superior tenía varios colmillos de 7 cm, y en el inferior, de hasta 15 cm, tenía unos agujeros en la parte frontal del cráneo para guardarn estos colmillos, y antes se pensaba que eran cuernos. Ambos maxilares contaban con 200 dientes dispuestos en una doble hilera lateral. Sus miembros era débiles y tenía membrana interdigital. Mastodonsaurus: Este fue probablemente el anfibio más grande de todos. Podía alcanzar un poco más de 4 metros de largo. Sus mandíbulas estaban dotadas de fortísimos y afilados dientes curvos. Antes se creía que era un reptil, por eso su nombre termina en - saurus (que significa reptil). Poseía 4 dedos en los miembros delanteros y 4 en los traseros, posiblemente unidos por membranas. Vivía en los pantanos poco profundos, y se pasaba la mayor parte del tiempo en el agua. Categoría:Anfibios Categoría:Urodelos Categoría:Fauna del Triásico
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