Crurotarsi
From left clockwise: Longosuchus, Gavialis, Saurosuchus, Litargosuchus, Chenanisuchus, Dakosaurus
- Worldwide
The Crurotarsi (also Crocodylotarsi Benton and Clark, 1988) are a group of archosaurs, including the crocodiles ( Crocodylia ) and some extinct taxa such as the Phytosauria belong.
Features
The common phylogenetic feature ( synapomorphy ) is typical for her training of the ankle, extending to between the two proximal ( " upper " ) tarsal bones Astragalus and calcaneus joint line. The Crurotarsi are the Ornithodira ( pterosaurs and dinosaurs ) against a sister group, in which the ankle joint between the proximal and distal ( " lower " ) runs tarsal bones.
- Ankle joints of archosaurs with a schematized course of the hinge line
The ankle Ornithodiren ( derived Mesotarsalgelenk ) for comparison
System
Dinosaurs ( Dinosauria ), including birds ( Aves)
Pterosaur ( Pterosauria ) †
Phytosauria †
Aetosauria †
Ornithosuchidae †
" Rauisuchia " †
Basal Crocodylomorpha † ( grade)
Crocodiles ( Crocodylia )