Evolution of reptiles
Reptiles arose about 310–320 million years ago during the Carboniferous period. Reptiles, in the traditional sense of the term, are defined as animals that have scales or scutes, lay land-based hard-shelled eggs, and possess ectothermic metabolisms. So defined, the group is paraphyletic, excluding endothermic animals like birds and mammals that are descended from early reptiles. A definition in accordance with phylogenetic nomenclature, which rejects paraphyletic groups, includes birds while excluding mammals and their synapsid ancestors. So defined, Reptilia is identical to Sauropsida.
Evolution of reptiles
Reptiles arose about 310–320 million years ago during the Carboniferous period. Reptiles, in the traditional sense of the term, are defined as animals that have scales or scutes, lay land-based hard-shelled eggs, and possess ectothermic metabolisms. So defined, the group is paraphyletic, excluding endothermic animals like birds and mammals that are descended from early reptiles. A definition in accordance with phylogenetic nomenclature, which rejects paraphyletic groups, includes birds while excluding mammals and their synapsid ancestors. So defined, Reptilia is identical to Sauropsida.
has abstract
Reptiles arose about 310–320 m ...... , mosasaurs, and ichthyosaurs.
@en
Répteis surgiram há cerca de 3 ...... s, mosassauros e ictiossauros.
@pt
Происхождение рептилий — один ...... ние характера кожных покровов.
@ru
thumbnail
Wikipage page ID
30,600,763
Wikipage revision ID
741,538,921
label
comment
Reptiles arose about 310–320 m ...... ia is identical to Sauropsida.
@en
Répteis surgiram há cerca de 3 ...... tilia é idêntica a Sauropsida.
@pt
Происхождение рептилий — один ...... личной новой группы животных —
@ru
label
Evolution of reptiles
@en
Evolução dos répteis
@pt
Происхождение рептилий
@ru