+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn

+ Translate
+ Recently Requested

Aging the fossil dwarf tapir, Tapirus polkensis, based on comparisons to extant tapir dental eruption and wear

Aging the fossil dwarf tapir, Tapirus polkensis, based on comparisons to extant tapir dental eruption and wear

Geological Society of America 43.2

The Gray Fossil Site (GFS) has the highest concentration of excellently preserved tapirs of any known fossil locality. This large concentration of tapir individuals allow for a great deal of work to be done on an animal, although extant, about little is known. Although smaller than the extant species this dwarf tapir, Tapirus polkensis, shares a near identical dentition. Here ages for individuals of T. polkensis from the Gray Fossil Site were assigned by comparing the state of the dentition to dental age data taken from The Baird's Tapir Project of Costa Rica (Baird's Tapirs, T. bairdii), which ranged from several months to over 7 years in age. Gross dental wear methods developed for aging individuals of extant tapir, T. terrestris, and the black rhino, Diceros bicornis, have been tested to attempt to further define individual tapirs older than 7 years. After all possible individuals of T. polkensis were aged; counts were taken of how many individuals were of a particular age and then compared to that of similar population data for large grazers.

(PDF emailed within 1 workday: $29.90)

Accession: 036995730

Download citation: RISBibTeXText

Related references

Cranial morphology and systematics of an extraordinary sample of the late Neogene dwarf tapir, Tapirus polkensis Olsen. Journal of Paleontology 83.2, 2009

The occurrence of an abdominal fauna in an articulated tapir Tapirus polkensis from the Miocene Gray Fossil Site, Northeast Tennessee. 2012

The occurrence of an abdominal fauna in an articulated tapir (Tapirus polkensis) from the Late Miocene Gray Fossil Site, Northeastern Tennessee. Integrative Zoology 8(1): 74-83, 2013

Using GIS to analyze spatial distribution and taphonomic processes of the extinct tapir Tapirus polkensis at the Gray Fossil Site, Gray, Tennessee. Geological Society of America 43.2, 2011

Current distribution and conservation status of the Colombian lowland tapir (Tapirus terrestris colombianus) and the Baird's or Central American tapir (Tapirus bairdii) in Colombia. Tapir Conservation. June; 141: 15-18 (No 17, 2005

Range extension of the Central American tapir Tapirus bairdii Ampliacion altitudinal del tapir centroamericano Tapirus bairdii. Revista de Biologia Tropical. June-September; 482-3: 724, 2000

First record of sexual dimorphism in a fossil tapir T Polkensis from the Gray Fossil Site, northeastern TN, USA. Geological Society of America 43.2, 2011

Unsuitable diet of the tapir Tapirus terrestris Alienophagie beim Tapir Tapirus terrestris. Zoologische Garten. Juli; 714: 276-277, 2001

Peritonitis in a South American tapir Tapirus terrestris Een Zuid-Amerikaanse tapir Tapirus terrestris met een peritonitis. Tijdschrift voor Diergeneeskunde. 15 Juli-1 Augustus; 12414-15: 439-440, 1999

A Case Study of Malayan Tapir Tapirus indicus Husbandry Practice Across 1 Zoological Collections Tapir Husbandry Survey. 2012

Semi captive management of the Amazonian tapir Tapirus terrestris in Ecuadorian Amazonian secondary forest, Pastaza province Manejo en semi-cautiverio del tapir Amazonico Tapirus terrestris en Bosque Secundario Amazonico Ecuatoriano, Provincia de Pastaza. Tapir Conservation. June; 141: 21-23 (No 17, 2005

Ecology of the tapir Tapirus bairdii in La Sepultura Biosphere Reserve, Chiapas, Mexico Ecologia del tapir Tapirus bairdii en la Reserva de la Biosfera La Sepultura, Chiapas, Mexico. Acta Zoologica Mexicana Nueva Serie. abril; 73: 111-125, 1998

Dental Lesions In The Lowland Tapir (Tapirus Terrestris). Journal of Zoo and Wildlife Medicine 46(2): 363-366, 2015

Faecal preferences of the Amazonian tapir Tapirus terrestris Coleoptera Scarabaeidae Scarabaeinae in secondary Amazonian forest Preferencia por fecas de tapir Amazonico Tapirus terrestris de escarabajos estercoleros Coleoptera Scarabaeidae Scarabaeinae en bosque Secundario Amazonico. Tapir Conservation. June; 141: 24-28 (No 17, 2005

Genetic diversity of the captive Asian tapir population in Thailand, based on mitochondrial control region sequence data and the comparison of its nucleotide structure with Brazilian tapir. Mitochondrial Dna. Part A, Dna Mapping, Sequencing, and Analysis (): 1-5, 2016