Class: ReptilesOrder: CrocodiliaFamily: Crocodylidae

🐊 Family Crocodylidae

True Crocodiles

Ancient armored archosaurs that have survived virtually unchanged for 80 million years, equipped with sensory integumentary organs and crushing bite mechanics.

Field Biometrics Tool

Diagnostic Family Traits & Anatomy

Pointed V-shaped snout with visible 4th lower tooth when mouth is shut
Dorsal osteoderms (bony armor plates) embedded directly in thick scaly skin
Integumentary sense organs (ISOs) across body scales detecting micro-vibrations in water
Four-chambered heart with a specialized Foramen of Panizza regulating blood flow during prolonged submersions

Evolutionary Background & Linnaean Key

Direct descendants of Mesozoic pseudosuchians, sharing a closer evolutionary lineage with modern birds and dinosaurs than with lizards.

💀 Skull & Dentition Key:

Heavy monolithic bone with conically shaped interlocking thecodont teeth rooted in deep sockets.

Genera & Species in this Lineage

1 Featured Profiles

Genus Crocodylus— True Crocodiles

Tropical river and estuarine predators possessing salt-excreting lingual glands.

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Least Concern

Saltwater Crocodile🐊

Crocodylus porosus

The heavyweight king of living reptiles, possessing the highest bite force ever recorded in the animal kingdom (3,700 PSI).

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