Theriiformes is a clade of mammals. The term was coined by Timothy B. Rowe in his doctoral dissertation,[1] and is defined as the clade formed by the most recent common ancestor of multituberculates (which form part of the broader group Allotheria, along with Gondwanatheria and likely all/part of Haramiyida) and Theria (the group containing marsupials and placentals).[2] Mammals more closely related to therians than to multituberculates are included in the clade Trechnotheria.[3] As multituberculates are usually considered more closely related to therians than monotremes are, it is considered to be a subgroup of the mammalian crown group.[4]
Theriiformes
Temporal range: Middle Jurassic–Recent
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Skull of the multituberculate Ptilodus (Allotheria) | |
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Skeleton of Maotherium (Trechnotheria) | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Clade: | Theriimorpha |
Clade: | Theriiformes Rowe, 1988 |
Subgroups | |
The cladogram below follows Luo et al. (2016):[5]
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