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Crocodiles and the relatives - Animals in the Habitats and the Fossil sites, and Biodiversity
The followings are extinct Crocodiles and the relatives excavated, and extant species in the world. Crocodiles and the relatives have lived from Permian and survived three times the Great Dying③④⑤. The explanation in brackets is the ages they lived in extinct species, and the habitat in extant species. Note that Mya is million years ago. For example, "48.6~40.4 Mya" shows a range between 48.6 and 40.4 million years ago. The time range is shown in the Geological Time Table. The followings are a part of the Evolutionary Tree.
- Kingdom Animalia
- Phylum Chordate
- Subphylum Vertebra
- Infraphylum Gnathostomata (Jawed vertebrates)
- Class Synapsida (Mammal-like reptiles)
- Class Sauropsida (Non mammal-like reptiles)
- Subclass Anapsida (No arch near the temples)
- Subclass Diapsida (Two arches near the temples)
- Infraclass Lepidosauromorpha (Lizards, Snakes, Tuatara)
- Infraclass Archosauromorpha (Crocodiles, Pterosaurs, Dinosaurs)
- Order Prolacertiformes (299~199 Mya)
- Order Rhynchosauria (245~203.6 Mya)
- Order Choristodera (Aquatic reptiles; 165~20 Mya)
- Clade Crurotarsi (Crocodiles and the relatives)
- Order Crocodyliformes (Crocodile's relative; 203.6~65.5 Mya)
- Suborder Sphenosuchia
- Suborder Protosuchia (Early crocodiles)
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 | Primitive crocodile |
Protosuchus (199.6~196.5 Mya; First crocodile) |
- Suborder Mesosuchia (Aquatic crocodiles)
- Infraorder Neosuchia
- Infraorder Notosuchia
- Suborder Thalattosuchia (Sea Crocodiles)
- Order Crocodilia (Crocodile; 203.6 Mya~)
- Family Gavialidae (Living fossil; Great Dying⑤)
- Family Alligatoridae (Living fossil; Great Dying⑤)
- Family Crocodylidae (Living fossil; Great Dying⑤)
- Order Phytosauria (Large aquatic archosaurs; 228~199.6 Mya)
- Order Aetosauria (Medium armoured archosaurs; 228~130 Mya)
- Order Rauisuchia (Large predatory archosaurs; 249.7~199.6 Mya)
- Clade Ornithodira (Pterosaurs, Dinosaurs)
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