TY - JOUR
T1 - Dental morphology of the Lesser Bamboo Rat, Cannomys Badius (Rodentia, Spalacidae)
AU - López-Antoñanzas, Raquel
PY - 2012/12/1
Y1 - 2012/12/1
N2 - Cannomys and Rhizomys are the sole living genera of the tribe Rhizomyini (Rhizomyinae, Spalacidae, Rodentia), known in the fossil record since the Late Miocene. The dental morphology of fossil Rhizomyini has been described in detail but until recently such descriptions were unavailable for extant species. A detailed account of the morphology and dental wear pattern of the cheek teeth of C. badius is provided here based on the examination of museum specimens. Three stages of wear are recognized. Cannomys shares with Rhizomys the synapomorphy of having a mesolophid that is a long continuation of the protoconid on the first lower molar. There are significant differences between these taxa, such as the much smaller size of the cheek teeth and the trilophodont dental pattern of the M2, M3, and m2 in Cannomys.
AB - Cannomys and Rhizomys are the sole living genera of the tribe Rhizomyini (Rhizomyinae, Spalacidae, Rodentia), known in the fossil record since the Late Miocene. The dental morphology of fossil Rhizomyini has been described in detail but until recently such descriptions were unavailable for extant species. A detailed account of the morphology and dental wear pattern of the cheek teeth of C. badius is provided here based on the examination of museum specimens. Three stages of wear are recognized. Cannomys shares with Rhizomys the synapomorphy of having a mesolophid that is a long continuation of the protoconid on the first lower molar. There are significant differences between these taxa, such as the much smaller size of the cheek teeth and the trilophodont dental pattern of the M2, M3, and m2 in Cannomys.
KW - Cannomys
KW - Dental wear pattern
KW - Rhizomyinae
KW - Rhizomyini
UR - http://www.scopus.com/inward/record.url?scp=84875881223&partnerID=8YFLogxK
U2 - 10.3897/zookeys.228.3826
DO - 10.3897/zookeys.228.3826
M3 - Article (Academic Journal)
C2 - 23166472
AN - SCOPUS:84875881223
SN - 1313-2989
VL - 228
SP - 69
EP - 75
JO - ZooKeys
JF - ZooKeys
ER -