Title
A hypothesis on the homology of proboscidean tusks based on paleontological data
Title Variants
Alternative:
Proboscidean tusks
Related Titles
Series:
American Museum novitates, no. 2895
By
Tassy, Pascal
Type
Book
Material
Published material
Publication info
New York, N.Y, American Museum of Natural History, c1987
Notes
Title from caption.
Abstract also in French.
"November 4, 1987."
"The nature and development of proboscidean tusks has long been discussed. New observations, mainly on the Upper Miocene elephantoid species Amebelodon floridanus (Leidy), and comparisons with other fossil proboscideans (Moeritherium and different elephantoid taxa) lead to the conclusion that the tusks of Moeritherium and Elephantoidea are not homologous. Factors considered were the precocity of incisor development and succession in elephantoids, the observed associations of the two pairs of lower incisors protruding out of the symphasis for a short period of time, the position of the loci in the premaxilla and the mandibular rostrum, and the hypothesis of homology of the loci in Moeritherium and elephantoids. It is proposed that the two pairs of incisors of elephantoids are incisors of the first dentition with no dental replacement and the permananet incisors (tusks) are dI2/di1"--P. [1].
Subjects
Elephants, Fossil
,
Evolution
,
Miocene
,
Paleontology
,
Proboscidea (Mammals), Fossil
,
Teeth, Fossil
,
Tusks
Call Number
QL1 .A436 no.2895, 1987
Language
English
Identifiers
OCLC:
18239677
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