Whippomorpha

Whippomorpha
Temporal range: Early Eocene–present
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Order:Artiodactyla
Clade:Cetancodontamorpha
Suborder:Whippomorpha
Waddell et al. 1999
Taxa

Whippomorpha is the clade containing the Cetacea (whales, dolphins, etc.) and their closest living relatives, the hippopotamuses, named by Waddell et al. (1999).[1] It is defined as a crown group, including all species that are descendants of the most recent common ancestor of Hippopotamus amphibius and Tursiops truncatus.[1] This would be a sub-grouping of the Cetartiodactyla (which also includes pigs and ruminants). It is not clear how recently whales and hippos share a common ancestor, though the genetic evidence is strong that the cetaceans arose from within the Artiodactyla, thus making the even-toed ungulate grouping a paraphyletic one.[2]

Whippomorpha is a mixture of English (wh[ale] + hippo[potamus]) and Greek (μορφή, morphe = form). Attempts have been made to rename the clade Cetancodonta[3] but Whippomorpha maintains precedence.[4]

   Artiodactyla   

 Tylopoda

   Artiofabula   

 Suina    

   Cetruminantia   

 Ruminantia

   Whippomorpha   

 Hippopotamidae

 Cetacea

References

  1. 1 2 Waddell, P. J.; Okada, N.; Hasegawa, M. (1999). "Towards resolving the interordinal relationships of placental mammals". Systematic Biology. 48 (1): 1–5. doi:10.1093/sysbio/48.1.1. JSTOR 2585262. PMID 12078634.
  2. Beck, Robin M.D.; Bininda-Emonds, Olaf R.P.; Cardillo, Marcel; Liu, Fu-Guo; Purvis, Andy (2006). "A higher-level MRP supertree of placental mammals". BMC Evolutionary Biology. 6: 93. doi:10.1186/1471-2148-6-93. PMC 1654192. PMID 17101039.
  3. Spaulding, Michelle; O'Leary, Maureen A.; Gatesy, John (2009). Farke, Andrew Allen, ed. "Relationships of cetacea (Artiodactyla) among mammals: Increased taxon sampling alters interpretations of key fossils and character evolution". PLoS ONE. 4 (9): e7062. doi:10.1371/journal.pone.0007062. PMC 2740860. PMID 19774069.
  4. Asher, Robert J.; Helgen, Kristofer M. (2010). "Nomenclature and placental mammal phylogeny". BMC Evolutionary Biology. 10: 102. doi:10.1186/1471-2148-10-102. PMC 2865478. PMID 20406454.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.