Scrotifera
Scrotifera Temporal range:
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From top to right: Chiroptera , comprising Scrotifera.
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Superorder: | Laurasiatheria |
Clade: | Scrotifera Waddell et al., 1999[1] |
Subgroups | |
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Synonyms | |
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Scrotifera ("scrotum bearers") is a
million years ago.Etymology
Peter Waddell, then of the Institute of Statistical Mathematics, explains the etymology of the clade's name as follows:
The name comes from the word scrotum, a pouch in which the testes permanently reside in the adult male. All members of the group have a postpenile scrotum, often prominently displayed, except for some aquatic forms and pangolin (which has the testes just below the skin). It appears to be an ancestral character for this group, yet other orders generally lack this as an ancestral feature, with the probable exception of Primates.[1]
Classification and phylogeny
History of phylogeny
In
According to a 2022 study, two extinct species (Eosoricodon terrigena and "Wyonycteris" microtis) were identified as outside of the family Nyctitheriidae and more closely related mammals to bats.[7] In another 2022 study, the extinct genus Acmeodon was recognized as not a member of the extinct order Cimolesta but a basal laurasiatherian mammal in the clade Scrotifera.[8][9]
Taxonomy
Former classification: Current classification: - Clade: Scrotifera (Waddell, 1999)
- Order: Artiodactyla(Owen, 1848) (even-toed ungulate)
- Clade: Pegasoferae (Nishihara, 2006)
- Order: Chiroptera (Blumenbach, 1779) (bats)
- Clade: Zooamata (Waddell, 1999)
- Miroder: Ferae (Linnaeus, 1758)
- Order: Perissodactyla(Owen, 1848) (odd-toed ungulate)
- Order:
- Clade: Scrotifera (Waddell, 1999)
- Grandorder: Ferungulata (Simpson, 1945)
- Clade: Chiroptera(bats)
- Family: †Eosoricodontidae (Lopatin, 2005)
- Genus: †Acmeodon (Matthew & Granger, 1921)
- Genus: †Gelastops (Simpson, 1935)
- Incertae sedis:
- †"Wyonycteris" microtis (Secord, 2008)
- Clade: Scrotifera (Waddell, 1999)
See also
References
- ^ PMID 12078643.
- ^ Springer M. S., Murphy W. J., Eizirik E., O'Brien S. J. In: "Placental Mammals: Origins and Relationships of the Major Clades." Rose K. D., Archibald J., editor. Baltimore: Johns Hopkins; (2005.) "Molecular evidence for major placental clades"; pp. 37–49
- PMID 22628470.
- ^ PMID 21900649.
- PMID 16785431.
- PMID 24184098.
- ^ Matthew F. Jones, Nancy Simmons, K. Christopher Beard (2022.) "Relationship of nyctitheres (Mammalia, Nyctitheriidae) to bats and other laurasiatherians", in "The Society of Vertebrate Paleontology 82nd annual meeting"
- .
- S2CID 262047180.