Biology:Echimyinae

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Short description: A subfamily of mammals belonging to the spiny rat family of rodents

Echimyinae
Mesomys hispidus female.jpg
Ferreira's spiny tree-rat, Mesomys hispidus
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Parvorder: Caviomorpha
Superfamily: Octodontoidea
Family: Echimyidae
Subfamily: Echimyinae
Gray 1825 [1]
Tribes

Echimyini
Myocastorini

Echimyinae[1] is a subfamily of rodents belonging to the spiny rats family Echimyidae.[2] It contains 14 arboreal genera—all the members of the tribe Echimyini, plus Callistomys—a few terrestrial genera (Thrichomys, Hoplomys, and Proechimys), and a subaquatic genus (Myocastor).[3]

Systematics

The taxonomic content of Echimyinae has been reshaped over time, because of two realizations. The first is a better understanding of the evolution of morphological characters, leading to the recognition that key character states long used to group genera into higher units were demonstrably homoplastic. The second came from the a phylogenetic analysis of molecular sequence data.[3][4]

Comparison between molecular-based[3] and traditional[2] systematics for Echimyinae genera.
Genera Molecular-based systematics Traditional systematics
Echimys Echimyini Echimyinae
Phyllomys Echimyini Echimyinae
Makalata Echimyini Echimyinae
Pattonomys Echimyini Echimyinae
Toromys Echimyini Echimyinae
Diplomys Echimyini Echimyinae
Santamartamys Echimyini Echimyinae
Isothrix Echimyini Echimyinae
Dactylomys Echimyini Dactylomyinae
Olallamys Echimyini Dactylomyinae
Kannabateomys Echimyini Dactylomyinae
Lonchothrix Echimyini Eumysopinae
Mesomys Echimyini Eumysopinae
Callistomys Myocastorini Echimyinae
Myocastor Myocastorini Myocastoridae
Thrichomys Myocastorini Eumysopinae
Hoplomys Myocastorini Eumysopinae
Proechimys Myocastorini Eumysopinae

Phylogeny

The subfamily Echimyinae groups most of the spiny rat family's generic diversity into two tribes: Echimyini and Myocastorini.[3]

Genus-level cladogram of the Echimyinae.
Echimyinae

References

  1. 1.0 1.1 Gray, J. E. (1825). "Outline of an attempt at the disposition of the Mammalia into tribes and families with a list of the genera apparently appertaining to each tribe". Annals of Philosophy 10: 337–344. 
  2. 2.0 2.1 Woods, C.A.; Kilpatrick, C.W. (2005). "Subfamily Echimyinae". in Wilson, D.E.; Reeder, D.M. Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. ISBN 978-0-8018-8221-0. OCLC 62265494. http://www.departments.bucknell.edu/biology/resources/msw3/browse.asp?id=13400422. 
  3. 3.0 3.1 3.2 3.3 Fabre, Pierre-Henri; Patton, James L.; Leite, Yuri L. R. (2016). "Family Echimyidae (hutias, South American spiny-rats and coypu)". Handbook of the Mammals of the World. Vol 6. Lagomorphs and Rodents I. Barcelona: Lynx Edicions. pp. 552–641. ISBN 978-84-941892-3-4. 
  4. Cite error: Invalid <ref> tag; no text was provided for refs named Fabre2017

Wikidata ☰ Q987497 entry