Zooamata

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Zooamatans
00296 zebra.jpg
Plains Zebras
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
(unranked): Pegasoferae
(unranked): Zooamata
Subgroups

Zooamata is a proposal for a clade of mammals uniting the Ferae (carnivores and pangolins) with the Perissodactyla (odd-toed ungulates). The name is constructed from Greek and Latin to mean "animal friends", a reference to the inclusion of cats, dogs, and horses.

Zoomata was proposed as one of the competing arrangements for the interordinal relationships of placental mammals within Laurasiatheria..[1] It received support in a phylogenenetic study using retroposon insertion analysis, where its was found to be the sister taxon to Chiroptera within a novel clade named Pegasoferae.[2] The Zooamata and Cetartiodactyla (even-toed ungulates and whales) together form Scrotifera.

Subsequent molecular studies have generally failed to support the proposal.[3][4][5] In particular, two recent phylogenomic studies analysing alternative theories for mammalian interordinal relationships concluded that Zooamata and Pegasoferae are not natural groupings.[6][7] The competing proposal linking the Perissodactyla and Cetartiodactyla in a clade named Euungulata, as a sister to the Ferae, in Scrotifera received stronger support.


Phylogeny[edit]

The following cladogram shows the phylogenetic relationships of laurasiatherian mammals following Nishihara et al (2006).[2]


   Laurasiatheria   

 Eulipotyphla


Scrotifera

 Cetartiodactyla


Pegasoferae

 Chiroptera


   Zooamata   

 Perissodactyla    


   Ferae   

 Carnivora



 Pholidota








  1. ^ P. J. Waddell, N. Okada, and M. Hasegawa. 1999. Towards resolving the interordinal relationships of placental mammals. Systematic Biology 48(1):1-5.
  2. ^ a b Nishihara, H.; Hasegawa, M.; Okada, N. (2006). "Pegasoferae, an unexpected mammalian clade revealed by tracking ancient retroposon insertions". Proceedings of the National Academy of Sciences. 103 (26): 9929–9934. doi:10.1073/pnas.0603797103. PMC 1479866Freely accessible. PMID 16785431. 
  3. ^ Matthee, Conrad A.; Eick, Geeta; Willows-Munro, Sandi; Montgelard, Claudine; Pardini, Amanda T.; Robinson, Terence J. (2007). "Indel evolution of mammalian introns and the utility of non-coding nuclear markers in eutherian phylogenetics". Molecular Phylogenetics and Evolution. 42 (3): 827–837. doi:10.1016/j.ympev.2006.10.002. PMID 17101283. 
  4. ^ Springer, M.S.; Burk-Herrick, A.; Meredith, R.; Eizirik, E.; Teeling, E.; O'Brien, S.J.; Murphy, W.J. (2007). "The adequacy of morphology for reconstructing the early history of placental mammals". Systematic Biology. 56 (4): 673–684. doi:10.1080/10635150701491149. PMID 17661234. 
  5. ^ Kitazoe, Yasuhiro; Kishino, Hirohisa; Waddell, Peter J.; Nakajima, Noriaki; Okabayashi, Takahisa; Watabe, Teruaki; Okuhara, Yoshiyasu (2007). Hahn, Matthew, ed. "Robust Time Estimation Reconciles Views of the Antiquity of Placental Mammals". PLoS ONE. 2 (4): e384. doi:10.1371/journal.pone.0000384. PMC 1849890Freely accessible. PMID 17440620. 
  6. ^ Zhou, Xuming; Xu, Shixia; Xu, Junxiao; Chen, Bingyao; Zhou, Kaiya; Yang, Guang (2011). "Phylogenomic Analysis Resolves the Interordinal Relationships and Rapid Diversification of the Laurasiatherian Mammals". Systematic Biology. 61 (1): 150–164. doi:10.1093/sysbio/syr089. PMC 3243735Freely accessible. PMID 21900649. 
  7. ^ Tsagkogeorga, G; Parker, J; Stupka, E; Cotton, JA; Rossiter, SJ (2013). "Phylogenomic analyses elucidate the evolutionary relationships of bats (Chiroptera)". Current Biology. 23 (22): 2262–2267. doi:10.1016/j.cub.2013.09.014. PMID 24184098.