Crocodylia

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Crocodylia

<tr><td>Kingdom:<td>Animalia <tr><td>Phylum:<td>Chordata <tr><td>Class:<td>Reptilia <tr><td>Order:<td>Crocodylia <tr><td>Family:<td>Crocodylidae </table> <tr><th bgcolor=pink>Subfamilies <tr><td> Crocodylinae
Alligatorinae
Gavialinae </table> Crocodylia is an order of large reptiles that scientists believe branched off from class Reptilia about 220 million years ago.

Order CROCODYLIA
- Suborder: Eusuchia
- Family: Crocodylidae
  - Subfamily: Crocodylinae
    - American Crocodile Crocodylus acutus
    - Slender-snouted Crocodile Crocodylus cataphractus
    - Orinoco Crocodile Crocodylus intermedius
    - Australian Freshwater Crocodile Crocodylus johnstoni
    - Philippine Crocodile Crocodylus mindorensis
    - Morelet's Crocodile Crocodylus moreletii
    - Nile Crocodile Crocodylus niloticus
    - New Guinea Crocodile Crocodylus novaeguineae
    - Mugger/Marsh Crocodile Crocodylus palustris
    - Estuarine/Saltwater Crocodile Crocodylus porosus
    - Cuban Crocodile Crocodylus rhombifer
    - Siamese Crocodile Crocodylus siamensis
    - Dwarf Crocodile Osteolaemus tetraspis
    - False Gharial/Gavial Tomistoma schlegelii
  - Subfamily: Alligatorinae (alligators and caimans)
    - American Alligator Alligator mississippiensis
    - Chinese Alligator Alligator sinensis
    - Common Caiman Caiman crocodilus
      - Bespectacled Caiman Caiman crocodilus crocodilus
      - Brown Caiman Caiman crocodilus fuscus
      - Rio Apaporis Caiman Caiman crocodilus apaporiensis
      - Yacare Caiman Caiman crocodilus yacare
    - Broad-snouted Caiman Caiman latirostros
    - Cuvier's Smooth-fronted Caiman Paleosuchus palpebrosus
    - Scheider's Smooth-fronted Caiman Paleosuchus trigonuatus
    - Black Caiman Melanosuchus niger
  - Subfamily: Gavialinae (Gavial)
    - Gharial Gavialis gangeticus

Contents

1 Extinct suborders and families

1 Systems

1.1 Circulatory

2 External links

Extinct suborders and families

Suborder: Eusuchia (one family living, see above)

Family: Stomatosuchidae
Family: Hylaeochampsidae
Family: Bernissartiidae
Family: Stomatosuchidae
Family: Crocodylidae

Suborder: Protosuchia

Family: Protosuchidae
Family: Sphenosuchidae

Suborder: Mesosuchia

Family: Atoposauridae
Family: Goniopholidae
Family: Paralligatoridae
Family: Notosuchidae
Family: Libycosuchidae
Family: Sphagesauridae
Family: Hsisosuchidae
Family: Teleosauridae
Family: Pholidosauridae
Family: Congosauridae

Suborder: Sebecosuchia

Family: Baurusuchidae
Family: Sebecidae

Suborder: Thalattosuchia

Family: Metriorhynchidae

Systems

Circulatory

Crocodiles are the exception among reptiles, they have a 4-chambered heart, but unlike mammals, oxygenated and deoxygenated blood can be mixed when the foramen of Panazzi is open, which bridges both ventricles in the heart. This opening is typically only open during diving, in order to shunt blood away from the lungs.

External links

de:Krokodile eo:Krokodilo id:Buaya ja:ワニ目 nl:Krokodilachtige

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Mokele (Last Contributor)

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