Are Pseudosuchia extinct?
Many of these Triassic pseudosuchian groups went extinct at or before the Triassic–Jurassic extinction event. However, one group, the crocodylomorphs, survived the major extinction….Pseudosuchia.
| Pseudosuchians Temporal range: Early Triassic – Holocene, | |
|---|---|
| Clade: | Archosauria |
| Clade: | Pseudosuchia Zittel, 1887 |
| Subgroups |
Are phytosaurs crocodiles?
Despite their great similarities in appearance and lifestyle, there are still a number of minor differences that distinguish phytosaurs from true crocodiles. For one thing, the phytosaur ankle structure is much more primitive than that of any crocodile.
Are dinosaurs crurotarsans?
The crurotarsans make up one of the two major clades of archosaurs. (The members of clade Avemetatarsalia, which include dinosaurs, pterosaurs, and modern birds, make up the second group.)
When did crurotarsans go extinct?
Both they and the crurotarsans survived an extinction event 228 million years ago, which wiped out many other reptile groups like the rhynchosaurs.
Do all dinosaurs have Osteoderms?
Osteoderms are found in many groups of extant and extinct reptiles and amphibians, including lizards, crocodilians, frogs, temnospondyls (extinct amphibians), various groups of dinosaurs (most notably ankylosaurs and stegosaurians), phytosaurs, aetosaurs, placodonts, and hupehsuchians (marine reptiles with possible …
What did the phytosaur look like?
Phytosauria: The phytosaurs. Most pseudosuchians or “croc-line” archosaurs didn’t look much like crocodiles, but phytosaurs were a definite exception. In fact, phytosaurs looked almost exactly like living crocs. They had short legs, wide, heavy bodies with rows of armored scales, long tails, and long toothy snouts.
Why are there no giant reptiles?
Most of these large reptiles, and the only large native mammal carnivores, had finally vanished by about 40,000 years ago along with Australia’s other megafauna, possibly because of changing climate.