Family Crocodylidae - true crocodiles

  Order
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  Class
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Reptilia
  No. of Genera in Ref.
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  No. of Species in Ref.
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  Environment
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Fresh : Yes | Brackish : No | Marine : Yes
  Aquarium
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  First Fossil Record
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  Remark
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Crocodylians are cold-blooded, amphibious, egg-laying reptiles with 4 legs, partially webbed feet, and a long powerful tail. Their external skin has scales, often strengthened by bone deposits (osteoderms), and they have a flattened, toothlined skull with broad or narrow snouts (Ref. 68590).
  Etymology
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  Division
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  Reproductive guild
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  Typical activity level
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  Main Ref.
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  Coordinator
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Ref.
[ e.g. 9948]                       
Glossary
                    [ e.g. cephalopods]