Reappraisal of the holotype of “testudo” costarricensis, a tortoise supposedly from the oligocene or lower miocene of Costa Rica

dc.creatorLichtig,Asher J.
dc.creatorLucas,Spencer G.
dc.creatorAlvarado,Guillermo E.
dc.date2018-12-01
dc.date.accessioned2023-09-25T14:30:58Z
dc.date.available2023-09-25T14:30:58Z
dc.identifierhttp://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0256-70242018000200039
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8821383
dc.descriptionAbstract “Testudo” costarricensis was described as a basal tortoise from the Oligocene or lower Miocene of Costa Rica and considered as evidence of a migration of tortoises from North America to South America to provide an ancestor to the modern genus Chelonoides. However, this was based on an incorrect reconstruction of the holotype carapace and plastron of continental T. costarricensis, which, when corrected, is identical to the North American Oligocene tortoise Oligopherus laticunea. Furthermore, there are no continental sedimentary rocks of Oligocene to Miocene age at the purported type locality nor does the matrix associated with the holotype of T. costarricensis match any sediment found there. T. costarricensis thus, apparently, is not a tortoise from the continental Miocene of Costa Rica. Instead, it was likely based on a specimen of Oligopherus laticunea from the United States.
dc.formattext/html
dc.languageen
dc.publisherUniversidad de Costa Rica
dc.relation10.15517/rgac.v59i0.34156
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceRevista Geológica de América Central n.59 2018
dc.subjectCosta Rica
dc.subjecttortoise
dc.subjectMiocene
dc.subjectturtles
dc.subjectTestudo costarricensis
dc.subjectOligopherus laticunea
dc.titleReappraisal of the holotype of “testudo” costarricensis, a tortoise supposedly from the oligocene or lower miocene of Costa Rica
dc.typeinfo:eu-repo/semantics/article


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