Trechnotheria
Clade of mammals / From Wikipedia, the free encyclopedia
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Trechnotheria is a group of mammals that includes the therians and some fossil mammals from the Mesozoic Era. It includes both the extinct symmetrodonts and the living Cladotheria.
Quick Facts Scientific classification, Subgroups ...
Trechnotherians | |
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Fossil of Zhangheotherium, a symmetrodont | |
Red fox, a modern-day trechnotherian | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Clade: | Theriiformes |
Clade: | Trechnotheria McKenna, 1975 |
Subgroups[1] | |
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Trechnotheria has been assigned various ranks, but was originally described as a "superlegion" by the naming authority.[2] A later node-based definition for Trechnotheria was the clade comprising the last common ancestor of Zhangheotherium and living therian mammals, and all its descendants.[3]