Open AccessH omotherium serum and C ervalces from the G reat L akes R egion, USA : geochronology, morphology and ancient DNA
Author(s) -
Widga Chris,
Fulton Tara L.,
Martin Larry D.,
Shapiro Beth
Publication year - 2012
Publication title -
boreas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.95
H-Index - 74
eISSN - 1502-3885
pISSN - 0300-9483
DOI - 10.1111/j.1502-3885.2012.00267.x
Subject(s) - extant taxon , geochronology , geology , margin (machine learning) , microbiology and biotechnology , biology , paleontology , evolutionary biology , computer science , machine learning
A scimitar‐toothed cat ( H omotherium serum ) and stag moose ( C ervalces sp.) are described from T yson S pring C ave, F illmore C ounty, M innesota. These specimens represent the first records of both species in the state, and the first record for H . serum in the G reat L akes region. Although the C ervalces specimen remains undated, it shares features with pre‐ W isconsin specimens from the eastern G reat P lains. The H . serum individual dates to c. 26.9 ka, when the W isconsin ice margin was less than 60 km away. Genetic analyses support the identity of the H omotherium specimen as conspecific with H omotherium serum found in older B eringian deposits, as well as both the early divergence of tribes H omotherini and S milodontini within M achairodontinae and the early divergence of this M achairodontinae from the lineage that produced extant cats.