Thylamys

Genus of marsupials

Thylamys[1]
Temporal range: Mid Miocene (Colloncuran) to Recent
~14–0 Ma
PreꞒ
Ꞓ
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S
D
C
P
T
J
K
Pg
N
Elegant fat-tailed mouse opossum
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Marsupialia
Order: Didelphimorphia
Family: Didelphidae
Subfamily: Didelphinae
Tribe: Thylamyini
Genus: Thylamys
J. E. Gray, 1843
Type species
Didelphis elegans
Species

See text

Thylamys is a genus of opossums in the family Didelphidae. The premaxillae are rounded rather than pointed. The females lack a pouch. The females' nipples are arranged in two symmetrical rows on the abdomen.[2] All species but T. macrurus store fat in their tails.,[3] although this is not necessarily true for all species in the genus.[4] Fossils belonging to the genus date back to the Miocene, with the oldest specimens being found in the Cerro Azul Formation of Argentina and the Honda Group of Colombia.[5] Genetic studies indicate that the genus may have originated around 14 million years ago.[6]

Taxonomy

Cladogram of living Thylamys species.[7][8]

T. karimii (Petter 1968) Reig, Kirsch & Marshall 1987 (Karimi's fat-tailed mouse opossum)

T. velutinus (Wagner 1842) Miranda-Ribeiro 1936 (Dwarf fat-tailed mouse opossum)

T. tatei (Handley 1957) Reig, Kirsch & Marshall 1987 (Tate's fat-tailed mouse opossum)

T. elegans (Waterhouse 1839) Gray 1843b (Elegant fat-tailed mouse opossum)

T. pallidior (Thomas 1902) Gardner & Creighton 1989 (White-bellied fat-tailed mouse opossum)

T. citellus (Thomas 1912c) [9]

T. pulchellus (Cabrera 1934) [10] (Argentine fat-tailed mouse opossum)

T. pusillus (Desmarest 1804) Reig, Kirsch & Marshall 1987 (Common fat-tailed mouse opossum)

T. macrurus (Olfers 1818) Gardner & Creighton 1989 (Paraguayan fat-tailed mouse opossum)

T. venustus Thomas 1902 (Buff-bellied fat-tailed mouse opossum)

T. cinderella (Thomas 1902) Flores, Díaz & Barquez 2000 (Cinderella fat-tailed mouse opossum)

T. sponsorius (Thomas 1921) Flores, Díaz & Barquez 2000 (Argentine fat-tailed mouse opossum)

Other species of Thylamys.[11]

  • †T. colombianus Goin 1997
  • T. fenestrae (Marelli 1932) [12]
  • †T. minutus Goin 1997
  • †T. pinei Goin, Montalvo & Visconti 2000
  • †T. zettii Goin 1997

References

  1. ^ Gardner, A.L. (2005). "Order Didelphimorphia". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 17–18. ISBN 978-0-8018-8221-0. OCLC 62265494.
  2. ^ Eisenberg, John Frederick; Redford, Kent Hubbard (1999). Mammals of the Neotropics: The Central Neotropics: Ecuador, Peru, Bolivia, Brazil. University of Chicago Press. p. 624. ISBN 978-0-226-19542-1.
  3. ^ Gardner, Alfred L. (2008). Mammals of South America: Marsupials, xenarthrans, shrews, and bats. University of Chicago Press. p. 669. ISBN 978-0-226-28240-4.
  4. ^ Voss, R.S. & Jansa, S.A. (2003). "Nonmolecular data and new IRBP sequences: separate and combined analyses of didelphine relationships with denser taxon sampling". Bulletin of the American Museum of Natural History. 276: 1–82. doi:10.1206/0003-0090(2003)276<0001:PSODMI>2.0.CO;2. hdl:2246/444. S2CID 55193165.
  5. ^ Braun, J.K.; et al. (2005). "Phylogenetic and biogeographic relationships of mouse opossums Thylamys (Didelphimorphia, Didelphidae) in southern South America". Journal of Mammalogy. 86 (1): 147–159. doi:10.1644/1545-1542(2005)086<0147:PABROM>2.0.CO;2.
  6. ^ Steiner, C.; et al. (2005). "New DNA data from transthyretin nuclear intron suggest an Oligocene to Miocene diversification of living South American opossums (Marsupialia: Didelphidae)". Molecular Phylogenetics and Evolution. 35 (2): 363–379. doi:10.1016/j.ympev.2004.12.013. PMID 15804409.
  7. ^ Upham, Nathan S.; Esselstyn, Jacob A.; Jetz, Walter (2019). "Inferring the mammal tree: Species-level sets of phylogenies for questions in ecology, evolution and conservation". PLOS Biol. 17 (12): e3000494. doi:10.1371/journal.pbio.3000494. PMC 6892540. PMID 31800571.
  8. ^ Amador, Lucila I.; Giannini, Norberto P. (2016). "Phylogeny and evolution of body mass in didelphid marsupials (Marsupialia: Didelphimorphia: Didelphidae)". Organisms Diversity & Evolution. 16 (3): 641–657. doi:10.1007/s13127-015-0259-x. S2CID 17393886.
  9. ^ Flores, D.; Teta, P. (2016). "Thylamys citellus". IUCN Red List of Threatened Species. 2016: e.T199835A22172943. doi:10.2305/IUCN.UK.2016-2.RLTS.T199835A22172943.en. Retrieved 9 January 2020.
  10. ^ Flores, D.; Teta, P. (2016). "Thylamys pulchellus". IUCN Red List of Threatened Species. 2016: e.T199834A22172571. doi:10.2305/IUCN.UK.2016-2.RLTS.T199834A22172571.en. Retrieved 9 January 2020.
  11. ^ Thylamys at Fossilworks.org
  12. ^ Martin, G.M.; Flores, D. (2016). "Thylamys fenestrae". IUCN Red List of Threatened Species. 2016: e.T199836A22172852. doi:10.2305/IUCN.UK.2016-2.RLTS.T199836A22172852.en. Retrieved 9 January 2020.
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Extant Didelphimorphia (opossums) species
Subfamily Caluromyinae
Caluromys
(Woolly opossums)
Subgenus Caluromys
Bare-tailed woolly opossum (C. philander)
Subgenus Mallodelphys
Derby's woolly opossum (C. derbianus)
Brown-eared woolly opossum (C. lanatus)
Caluromysiops
  • Black-shouldered opossum (C. irrupta)
Glironia
  • Bushy-tailed opossum (G. venusta)
Subfamily Didelphinae (cont. below)
Chacodelphys
  • Chacoan pygmy opossum (C. chacoensis)
Chironectes
  • Water opossum (C. minimus)
Cryptonanus
  • Agricola's gracile opossum (C. agricolai)
  • Chacoan gracile opossum (C. chacoensis)
  • Guahiba gracile opossum (C. guahybae)
  • Unduavi gracile opossum (C. unduaviensis)
Didelphis
(Large American
opossums)
  • White-eared opossum (D. albiventris)
  • Big-eared opossum (D. aurita)
  • Guianan white-eared opossum (D. imperfecta)
  • Common opossum (D. marsupialis)
  • Andean white-eared opossum (D. pernigra)
  • Virginia opossum (D. virginiana)
Gracilinanus
  • Aceramarca gracile opossum (G. aceramarcae)
  • Agile gracile opossum (G. agilis)
  • Wood sprite gracile opossum (G. dryas)
  • Emilia's gracile opossum (G. emilae)
  • Northern gracile opossum (G. marica)
  • Brazilian gracile opossum (G. microtarsus)
Hyladelphys
  • Kalinowski's mouse opossum (H. kalinowskii)
Lestodelphys
  • Patagonian opossum (L. halli)
Lutreolina
  • Big lutrine opossum (L. crassicaudata)
  • Massoia's lutrine opossum (L. massoia))
Marmosa
(Mouse opossums)
  • Alston's mouse opossum (M. alstoni)
  • Heavy-browed mouse opossum (M. andersoni)
  • White-bellied woolly mouse opossum (M. constantiae)
  • Woolly mouse opossum (M. demerarae)
  • Isthmian mouse opossum (M. isthmica)
  • Rufous mouse opossum (M. lepida)
  • Mexican mouse opossum (M. mexicana)
  • Linnaeus's mouse opossum (M. murina)
  • Tate's woolly mouse opossum (M. paraguayanus)
  • Little woolly mouse opossum (M. phaeus)
  • Quechuan mouse opossum (M. quichua)
  • Bare-tailed woolly mouse opossum (M. regina)
  • Robinson's mouse opossum (M. robinsoni)
  • Red mouse opossum (M. rubra)
  • Tyler's mouse opossum (M. tyleriana)
  • Guajira mouse opossum (M. xerophila)
Marmosops
  • Bishop's slender opossum (M. bishopi)
  • Narrow-headed slender opossum (M. cracens)
  • Creighton's slender opossum (M. creightoni)
  • Dorothy's slender opossum (M. dorothea)
  • Dusky slender opossum (M. fuscatus)
  • Handley's slender opossum (M. handleyi)
  • Tschudi's slender opossum (M. impavidus)
  • Gray slender opossum (M. incanus)
  • Panama slender opossum (M. invictus)
  • Junin slender opossum (M. juninensis)
  • Neblina slender opossum (M. neblina)
  • White-bellied slender opossum (M. noctivagus)
  • Delicate slender opossum (M. parvidens)
  • Brazilian slender opossum (M. paulensis)
  • Pinheiro's slender opossum (M. pinheiroi)
Subfamily Didelphinae (cont. above)
Metachirus
  • Brown four-eyed opossum (M. nudicaudatus)
Monodelphis
(Short-tailed
opossums)
  • Sepia short-tailed opossum (M. adusta)
  • Northern three-striped opossum (M. americana)
  • Northern red-sided opossum (M. brevicaudata)
  • Yellow-sided opossum (M. dimidiata)
  • Gray short-tailed opossum (M. domestica)
  • Emilia's short-tailed opossum (M. emiliae)
  • Amazonian red-sided opossum (M. glirina)
  • Ihering's three-striped opossum (M. iheringi)
  • Pygmy short-tailed opossum (M. kunsi)
  • Marajó short-tailed opossum (M. maraxina)
  • Osgood's short-tailed opossum (M. osgoodi)
  • Hooded red-sided opossum (M. palliolata)
  • Peruvian short-tailed opossum (M. peruviana)
  • Reig's opossum (M. reigi)
  • Ronald's opossum (M. ronaldi)
  • Chestnut-striped opossum (M. rubida)
  • Long-nosed short-tailed opossum (M. scalops)
  • Southern red-sided opossum (M. sorex)
  • Southern three-striped opossum (M. theresa)
  • Red three-striped opossum (M. umbristriata)
  • One-striped opossum (M. unistriata)
Philander
(Gray & black four-
eyed opossums)
  • Anderson's four-eyed opossum (P. andersoni)
  • Deltaic four-eyed opossum (P. deltae)
  • Southeastern four-eyed opossum (P. frenatus)
  • McIlhenny's four-eyed opossum (P. mcilhennyi)
  • Mondolfi's four-eyed opossum (P. mondolfii)
  • Olrog's four-eyed opossum (P. olrogi)
  • Gray four-eyed opossum (P. opossum)
Thylamys
  • Cinderella fat-tailed mouse opossum (T. cinderella)
  • Elegant fat-tailed mouse opossum (T. elegans)
  • Karimi's fat-tailed mouse opossum (T. karimii)
  • Paraguayan fat-tailed mouse opossum (T. macrurus)
  • White-bellied fat-tailed mouse opossum (T. pallidior)
  • Common fat-tailed mouse opossum (T. pusillus)
  • Argentine fat-tailed mouse opossum (T. sponsorius)
  • Tate's fat-tailed mouse opossum (T. tatei)
  • Dwarf fat-tailed mouse opossum (T. velutinus)
  • Buff-bellied fat-tailed mouse opossum (T. venustus)
Tlacuatzin
  • Grayish mouse opossum (T. canescens)
Taxon identifiers
Thylamys


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