Cladotheria
| Cladotheres | |
|---|---|
| |
| Fossil of the basal cladotherian Henkelotherium guimarotae
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Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Clade: | Trechnotheria |
| Clade: | Cladotheria McKenna, 1975 |
| Subgroups | |
| |
Cladotheria is a
Spalacotherium tricuspidens.[3]
Cladotheria incorporates a set of nested mammal clades culminating in
tribosphenic teeth such as therians and a few of their closest relatives. The clade Prototribosphenida includes "the common ancestor of Vincelestes and living therians, plus all of its descendants". Apart from tribosphenids, Prototribosphenida also includes amphitheriids and peramurids, as well as a few isolated genera such as Vincelestes. It excludes the various basal cladotherian groups which have been combined under the label "dryolestoids".[1] The clade Zatheria is even more exclusive, restricted to solely peramurids and tribosphenids. Zatheria is defined as "the common ancestor of Peramus and living marsupials and placentals, plus all of its descendants".[1]
Description
Early cladotherians can be distinguished from other mammals by a number of derived traits (
cartilaginous connection may have been retained in early-diverging groups.[4]
Phylogeny
The cladogram below is simplified after a 2022 phylogenetic analysis by Lasseron and colleagues:[5]
| Cladotheria |
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References
- ^ a b c d e Luo, Z.-X.; Kielan-Jaworowska, Z.; Cifelli, R. L. (2002). "In quest for a phylogeny of Mesozoic mammals" (PDF). Acta Palaeontologica Polonica. 47 (1): 1–78.
- ISBN 978-0-231-11012-9. Retrieved 16 March 2015.
- S2CID 91383652.
- PMID 28322334.
- S2CID 249324444.