Biology:Theriiformes

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Short description: Clade of mammals

Theriiformes
Temporal range: Middle Jurassic to Recent
Ptilodus skull.jpg
Skull of the multituberculate Ptilodus (Allotheria)
Maotherium.jpg
Skeleton of Maotherium (Trechnotheria)
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Clade: Theriimorpha
Clade: Theriiformes
Rowe, 1988
Subgroups

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]

The cladogram below follows Luo et al. (2016):[5]

Mammalia

Australosphenida

Theriimorpha

Fruitafossor

Eutriconodonta

Theriiformes

Gondwanatheria

Multituberculata

Trechnotheria

Spalacotherioidea

Cladotheria

Dryolestoidea

Theria

References

  1. Rowe, T. (1988). "Definition, diagnosis, and origin of Mammalia". Journal of Vertebrate Paleontology 8 (3): 241–264. doi:10.1080/02724634.1988.10011708. https://www.researchgate.net/publication/241730711_Definition_diagnosis_and_origin_of_Mammalia. 
  2. Zachos, Frank, ed (2018-10-22). Mammalian Evolution, Diversity and Systematics. De Gruyter. ISBN 978-3-11-034155-3. http://dx.doi.org/10.1515/9783110341553. 
  3. Macrini, T. E.; Rougier, G. W.; Rowe, T. (2007). "Description of a Cranial Endocast from the Fossil Mammal Vincelestes neuquenianus (Theriiformes) and its Relevance to the Evolution of Endocranial Characters in Therians". The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology 290 (7): 875–892. doi:10.1002/ar.20551. 
  4. Macrini, Thomas E.; Rougier, Guillermo W.; Rowe, Timothy (July 2007). "Description of a Cranial Endocast from the Fossil MammalVincelestes neuquenianus (Theriiformes) and its Relevance to the Evolution of Endocranial Characters in Therians" (in en). The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology 290 (7): 875–892. doi:10.1002/ar.20551. https://onlinelibrary.wiley.com/doi/10.1002/ar.20551. 
  5. Luo, Zhe-Xi; Schultz, Julia A.; Ekdale, Eric G. (2016). "Evolution of the Middle and Inner Ears of Mammaliaforms: The Approach to Mammals". in Clack, Jennifer A.; Fay, Richard R.; Popper, Arthur N.. Evolution of the Vertebrate Ear. 59. pp. 139–174. doi:10.1007/978-3-319-46661-3_6. https://www.researchgate.net/publication/311839173_Evolution_of_the_Middle_and_Inner_Ears_of_Mammaliaforms_The_Approach_to_Mammals. 

Wikidata ☰ Q2513125 entry