The Order Thecodontia is further organized into finer groupings including:
- Suborder (2): Pseudosuchia · Rauisuchia
- Family (7): Aetosauridae · Erpetosuchidae · Erythrosuchidae · Ornithosuchidae · Phytosauridae · Rauisuchidae · Stagonolepididae
- Species: ZipcodeZoo has pages for 50 species and subspecies in the Order Thecodontia.
At least 15 species and subspecies belong to the Family Stagonolepididae.
More info about the Family Stagonolepididae may be found here.
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