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Genus of mammals (fossil)
Trigonostylops is an extinct genus of South American
meridiungulatan
ungulate , from the
Late Paleocene to
Late Eocene (
Itaboraian to
Tinguirirican in the
SALMA classification ) of South America (
Argentina and
Peru ) and Antarctica (
Seymour Island ). It is the only member of the family Trigonostylopidae .
Description
Interpretation of T. wortmani
A complete
skull of the
type species , T. wortmani , has been found, and it has been classified as an
astrapothere based on its large lower incisors.
[1]
Phylogeny
Cladogram based in the
phylogenetic analysis published by Vallejo Pareja et al ., 2015, showing the position of Trigonostylops :
[2]
Distribution
Fossils of Trigonostylops have been found in:
[3]
Paleocene
Eocene
References
^ Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals . London: Marshall Editions. p. 249.
ISBN
978-1-84028-152-1 .
^ Vallejo Pareja et al., 2015
^
Trigonostylops at
Fossilworks .org
^ Goin et al., 2009
^ Dzik & Gaździcki, 2001
^ Vera, 2012
^ Cifelli, 29185, p.5
^ Antoine et al., 2011
Bibliography
Antoine, P.O.; Marivaux, L.;
Croft, D.A. ; Billet, G.; Ganerod, M.;
Jaramillo, C. ; Martin, T.; Orliac, M.; Tejada, J.; Altamirano, A. J.; Duranthon, F.; Fanjat, G.; Rousse, S.; Salas Gismondi, R. (2011).
"Middle Eocene rodents from Peruvian Amazonia reveal the pattern and timing of caviomorph origins and biogeography" .
Proceedings of the Royal Society B . 279 (1732): 1319–1326.
doi :
10.1098/rspb.2011.1732 .
PMC
3282368 .
PMID
21993503 .
S2CID
26368929 . Retrieved 2019-02-14 .
Cifelli, R (1985).
"Biostratigraphy of the Casamayoran, Early Eocene of Patagonia" (PDF) .
American Museum Novitates (2820): 1–26. Retrieved 2019-02-14 .
Dzik, J.; Gaździcki, A. (2001).
"The Eocene expansion of nautilids to high latitudes" (PDF) .
Palaeogeography, Palaeoclimatology, Palaeoecology . 172 (3–4): 297–312.
Bibcode :
2001PPP...172..297D .
doi :
10.1016/S0031-0182(01)00304-2 . Retrieved 2019-02-14 .
Goin, F.J.; Candela, A.M.; Abello, M.A.; Oliveira, E.V. (2009).
"Earliest South American paucituberculatans and their significance in the understanding of 'pseudodiprotodont' marsupial radiations" .
Zoological Journal of the Linnean Society . 155 (4): 867–884.
doi :
10.1111/j.1096-3642.2008.00471.x .
S2CID
84131123 . Retrieved 2019-02-14 .
Vallejo Pareja, M.C.; Carrillo, J.D.; Moreno Bernal, J.W.; Pardo Jaramillo, M.; Rodríguez González, D.F.; Muñoz Duran, J. (2015).
"Hilarcotherium castanedaii , gen. et sp. nov., a new Miocene astrapothere (Mammalia, Astrapotheriidae) from the Upper Magdalena Valley, Colombia" (PDF) . Zurich Open Repository and Archive, University of Zurich . 35 (2): 1–14.
Bibcode :
2015JVPal..35E3960V .
doi :
10.1080/02724634.2014.903960 .
S2CID
130728894 . Retrieved 2019-02-14 .
Vera, B (2012).
"Revisión del género Transpithecus Ameghino, 1901 (Notoungulata, Interatheriidae) del Eoceno medio de Patagonia, Argentina" .
Ameghiniana . 49 : 60–74.
doi :
10.5710/AMGH.v49i1(361) .
S2CID
130102948 . Retrieved 2019-02-14 .