Theriiformes

Theriiformes is a subclass of mammals. The term was coined in 1997 by McKenna & Bell in their classification of mammals.[1] In the strict sense, it is defined as all mammals more closely related to therians than to monotremes.

Mammaliaformes 
 

†Morganucodontidae

 
Mammalia 
 

Yinotheria→Monotremata

 
Theriiformes
 

†Allotheria→†Multituberculata

 
Holotheria
 

†Kuehneotheria

 
Trechnotheria
 

†Zhangheotherium †("Symmetrodonta")

 
 Cladotheria 
 

†Dryolestoidea

 
 Zatheria 
 

†Peramura

 
Tribosphenida
 

†Aegialodontia

 
 Theria 
 

Metatheria→Marsupialia

 
 

Eutheria→Placentalia

 
 
 
 
 
 
 
 
 
 

Theriiformes
Temporal range: Late Triassic - Holocene, 220–0 Ma
Two humans from Akha tribe in northern Thailand
Kangaroo with her joey
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Subclass: Theriiformes
McKenna & Bell, 1997
Infraclasses

References

  1. McKenna, Malcolm; Bell, Susan (March 15, 1997). Classification of Mammals Above the species Level (Hardback) |format= requires |url= (help) (first ed.). New York City: Columbia University Press. ISBN 978-0231110129.
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