Mesosuchia

Mesouschia Temporal range: 199–35 Ma PreЄ Є O S D C P T J K Pg N Hettangian - Eocene
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Sauropsid
Superorder:	Crocodylomorpha
Suborder:	Mesosuchia *
Infraorders & Families
see text.

"Mesosuchia" is an obsolete name for a group of terrestrial, semi-aquatic, or fully aquatic crocodylomorph reptiles. The marine crocodile Metriorhynchus had paddle-like forelimbs, Dakosaurus andiniensis had a skull that was adapted to eat large sea reptiles, and Shamosuchus was adapted for eating molluscs and gastropods. Shamosuchus also looked like modern crocodiles and was very closely related to their direct ancestor.

The "Mesosuchia" were formerly placed at Suborder rank as within Crocodylia. The "first" crocodiles were placed within their own suborder, Protosuchia; whilst extant species where placed within Suborder Eusuchia (meaning 'true crocodiles'). Mesosuchia were the crocodylians "in between". As it is a paraphyletic group however, it is not considered valid anymore. It is replaced by its phylogenetic equivalent Mesoeucrocodylia, which contains the taxa herein, the Crocodylia, and some allied forms more recently discovered.

The "Mesosuchia" was composed as:

• Family Hsisosuchidae
• Family Gobiosuchidae
  • Infraorder Notosuchia
    • Family Notosuchidae
    • Family Sebecidae
    • Family Baurusuchidae
  • Infraorder Neosuchia
    • Family Trematochampsidae
    • Family Peirosauridae
      • Genus Lomasuchus
      • Genus Montealtosuchus
    • Family Elosuchidae
    • Family Atoposauridae
    • Family Dyrosauridae
    • Family Pholidosauridae
      • Genus Sarcosuchus
    • Infraorder Thalattosuchia - Sea "Crocodiles"
      • Family Teleosauridae
      • Family Metriorhynchidae
        • Genus Dakosaurus
    • Family Goniopholididae
    • Family Paralligatoridae
      • Genus Shamosuchus

External links

• Unterordnung Mesosuchia
• A teleosaurid (Crocodylia, Mesosuchia) from the Toarcian of Madagascar and its palaeobiogeographical significance
• Blue Nile Gorge
• In German
• Shantungosuchus
• Crocodyliformes
• Crocodile Evolution