I have some histological tooth sections marked Mandrillus but they are quite a bit smaller than Madrillus sphinx teeth. Are Mandrillus leucophaeus teeth smaller? I'm having a terrible time finding any data on this.
http://www.academia.edu/776261/Beyond_Gorilla_and_Pongo_alternative_models_for_evaluating_variation_and_sexual_dimorphism_in_fossil_hominoid_samples
http://www.academia.edu/776261/Beyond_Gorilla_and_Pongo_alternative_models_for_evaluating_variation_and_sexual_dimorphism_in_fossil_hominoid_samples
Hi Wendy,
I haven't been able to find an electronic copy of this paper (the digital subscription at my institution doesn't go back far enough on the particular journal), but it's one that sounds like it might have some useful bits of info for you:
Vitzthum, V.J., 1990. Odontometric variation within and between taxonomic levels of cercopithecidae: Implications for interpetations of fossil samples. Human Evolution 5 (4): 359-374.
Abstract: This study examines metric variation of the post-canine permanent dentition of four monkey groups (savannah and forest baboons, savannah and forest guenons) represented by 1,840 individuals. Papio, Mandrillus, Cercopithecus aethiops, and C. mitis each display marked within-group variation in tooth size. Taxonomic status and/or sexual composition of a sample does not correspond to a particular magnitude of variation. Therefore, the use of the coefficient of variation to assess either the specific or sexual composition of fossil samples is untenable.
Cheers,
Ian
Hi Wendy!
I'm new to ResearchGate. Glad to see you.
My dissertation research did not involve teeth, but did involve mandrills, including
skull length. As you might already know, the British Museum has a male specimen
of M. sphinx(1948.7.62) from the London Zoo with a skull length of 194.0mm
My notes also say "also 1939.3435, 1973.153, presumably other specimens I didn't
measure.
The British Museum (of Natural Sciences) also has a male leucophaeus(1959.1.3.6)
from the London Zoo with a total skull length of 181.5mm, a rostrum length of
62.0mm, and a bizygomatic breadth of 131.3mm.
I also measured three sphinx specimens from the Field Museum in Chicago:
FMNH 121292, male, Lincoln Park Zoo, total skull length 197.2mm, rostrum length
67.0 mm, bizygomatic breadth120.7 mm
FMNH 135259, male, Chicago Zool. Soc., total skull length 208mm, rostrum length
77.0mm, bizygomatic breadth 142.0mm
FMNH 127413, female, Lincoln Park Zoo, total skull length 142.0mm, rostrum length
45.5mm, bizygomatic breadth 93.0mm
Last, Harvard's Museum of Comparative Zoology had a leucophaeus that I measured
MCZ 20085, male. total skull length 176.8mm, rostrum length 65.2,,. bizygomatic
breadth 120.6. This was listed as from Cameroon.
There probably are more specimens at these locations, as well, Perhaps the curators can take measurements for you.
Deb
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