Crocodylia Guide, Meaning , Facts, Information and Description

Crocodylia
: Eukaryota : Animalia : Metazoa : Chordata : Reptilia : Crocodylia : Crocodylidae
Subfamilies
Crocodylinae  Alligatorinae  Gavialinae

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

Table of contents

1 Extinct suborders and families 2 Systems 3 Circulatory 4 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 4-chambered heart, but they still mix oxygenated and deoxygenated bloddy due the presence of foramen of Panazzi, which bridge both ventricles.

External links

• http://www.il-st-acad-sci.org/kingdom/rept007.html
• http://www.il-st-acad-sci.org/kingdom/rept007a.html
• Florida's Museum of Natural History's Crocodilians Natural History & Conservation site

This is an Article on Crocodylia. Page Contains Information, Facts Details or Explanation Guide About Crocodylia

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