Temporal range: Early Jurassic - Holocene, 176–0 Ma
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
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]
†Spalacotheriida
†Spalacotheriidae
†Zhangheotheriidae
Cladotheria
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.
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]
^Cite error: The named reference Luo et al. 2002 was invoked but never defined (see the help page).
^
McKenna, Malcolm C.; Bell, Susan K. (1997). Classification of Mammals: Above the Species Level. Columbia University Press. p. 43. ISBN 978-0-231-52853-5.
^
Kielan-Jaworowska, Zofia; Cifelli, Richard; Luo Zhe-Xi (5 February 2005). Mammals from the age of dinosaurs: origins, evolution, and structure. Columbia University Press. p. 366. ISBN 978-0-231-11918-4.
Trechnotheria is a group of mammals that includes the therians and some fossil mammals from the Mesozoic Era. It includes both the extinct symmetrodonts...
related to therians than to multituberculates are included in the clade Trechnotheria. As multituberculates are usually considered more closely related to...
O.; Martin, T.; Lopatin, A. V. (2013). "A new phylogeny for basal Trechnotheria and Cladotheria and affinities of South American endemic Late Cretaceous...
†Kuehneotheria Family †Kuehneotheriidae Family †Woutersiidae Superlegion Trechnotheria Legion †Symmetrodonta Family †Shuotheriidae Order †Amphidontoidea Family...
Robinson, Nicole; Davis, Brian (2016). "A new symmetrodont mammal (Trechnotheria: Zhangheotheriidae) from the Early Cretaceous of China and trechnotherian...
Robinson, Nicole; Davis, Brian (2016). "A new symmetrodont mammal (Trechnotheria: Zhangheotheriidae) from the Early Cretaceous of China and trechnotherian...
Martin, Thomas; Lopatin, Alexey V. (2013). "A new phylogeny for basal Trechnotheria and Cladotheria and affinities of South American endemic Late Cretaceous...
taxon of the family Spalacotheriidae, which is an extinct clade within Trechnotheria that may be closely related to the Gondwanan clade Meridiolestida, or...
A.O.; Martin, T.; Lopatin, A.V. (2013). "A new phylogeny for basal Trechnotheria and Cladotheria and affinities of South American endemic Late Cretaceous...
Thomas Martin and Alexey V. Lopatin (2013). "A new phylogeny for basal Trechnotheria and Cladotheria and affinities of South American endemic Late Cretaceous...
Martin, Thomas; Lopatin, Alexey V. (2013). "A new phylogeny for basal Trechnotheria and Cladotheria and affinities of South American endemic Late Cretaceous...
A.O.; Martin, T.; Lopatin, A.V. (2013). "A new phylogeny for basal Trechnotheria and Cladotheria and affinities of South American endemic Late Cretaceous...
A.O.; Martin, T.; Lopatin, A.V. (2013). "A new phylogeny for basal Trechnotheria and Cladotheria and affinities of South American endemic Late Cretaceous...
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