TY - JOUR
T1 - A new Puercan (early Paleocene) hyopsodontid "condylarth" from New Mexico
AU - Williamson, Thomas E.
AU - Weil, Anne
PY - 2011/6
Y1 - 2011/6
N2 - Isolated cheek teeth from the late Puercan (early Paleocene) Split Lip Flats local fauna, from the head of Willow Wash, Nacimiento Formation, San Juan Basin, represent a new genus and species of hyopsodontid "condylarth", Chacomylus sladei. The teeth are small, bunodont, and are remarkable for the enlargement of the protocone, pronounced exodaenodonty, and high degree of attritional wear caused by transverse shearing or grinding. Although C. sladei bears a superficial resemblance to the apheliscine apheliscid Gingerichia, a preliminary phylogenetic analysis confirms that it is a hyopsodontid, closely related to the Puercan hyopsodontids Valenia wilsoni and Litomylus orthronepius.
AB - Isolated cheek teeth from the late Puercan (early Paleocene) Split Lip Flats local fauna, from the head of Willow Wash, Nacimiento Formation, San Juan Basin, represent a new genus and species of hyopsodontid "condylarth", Chacomylus sladei. The teeth are small, bunodont, and are remarkable for the enlargement of the protocone, pronounced exodaenodonty, and high degree of attritional wear caused by transverse shearing or grinding. Although C. sladei bears a superficial resemblance to the apheliscine apheliscid Gingerichia, a preliminary phylogenetic analysis confirms that it is a hyopsodontid, closely related to the Puercan hyopsodontids Valenia wilsoni and Litomylus orthronepius.
KW - Condylartha
KW - Hyopsodontidae
KW - Mammalia
KW - Nacimiento Formation
KW - New Mexico
KW - Paleocene
KW - Puercan
UR - http://www.scopus.com/inward/record.url?scp=79959575110&partnerID=8YFLogxK
U2 - 10.4202/app.2009.0147
DO - 10.4202/app.2009.0147
M3 - Article
AN - SCOPUS:79959575110
SN - 0567-7920
VL - 56
SP - 247
EP - 255
JO - Acta Palaeontologica Polonica
JF - Acta Palaeontologica Polonica
IS - 2
ER -