< Dichotomous Key
Dichotomous Key: Reptilia
Kingdom: Animalia
Phylum: Animalia
Subphylum: Chordata
Class: Reptilia
Information related to Reptilia
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Parent key: Chordata
Subphyla
Vertebrata
Key: Reptilia
Vertebrata
Clerck, 1757
Chordata keys
Subphyla
Myxini | Urochordata
Classes
Actinistia | Actinopterygii | Amphibia | Aves | Chondrichthyes | Dipnoi | Mammalia | Petromyzontida | Reptilia

1

  • Upper and a lower lateral temporal fenestra
    • Both present - #3
    • Not present - #2

2

  • Ribs adapted into hard shells

3

  • Cloacal opening
    • Longitudinal slit Crocodylia
    • Transverse slit - #4

4

  • Jaw disarticulation
    • Present - Serpentes
    • Not present - Sauria
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