The fossil record of camelids demonstrates a late divergence between Bactrian camel and dromedary

Autor:	Denis Geraads, Gilles Didier, Andrew Barr, Denne Reed, Michel Laurin
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	mammalia camelidae phylogeny divergence time fossil record birth-and-death models pleistocene africa Fossil man. Human paleontology GN282-286.7 Paleontology QE701-760
Zdroj:	Acta Palaeontologica Polonica, Vol 65, Iss 2, Pp 251-260 (2020)
Druh dokumentu:	article
ISSN:	0567-7920 1732-2421
DOI:	10.4202/app.00727.2020
Popis:	A new compilation of the Old World fossil record of Camelidae and a recent phylogenetic analysis allow a new assessment of the timing of the clade’s diversification. Using a recent implementation of the fossilized birth-death process, we show that the divergence between Bactrian camel and dromedary has a peak probability density around 1 Ma and probably occurred less than 2 million years ago. These dates are much younger than molecular estimates, which place the divergence between the dromedary and the Bactrian camel between 4 and 8 million years ago. Calibration problems in molecular dating seem to explain much of this difference.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/863afcf373324898ba0a6f5424cfba54 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF