 Reference Base  Ein Schaedel des Rhinoceros simus im Naturhist. Museum zu... |
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Nehring, A., 1901. Ein Schaedel des Rhinoceros simus im Naturhist. Museum zu Hamburg. Zoologische Anzeiger 24: 225-228, fig. 1
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World |
| Subject: |
Morphology - Size |
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White Rhino |
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Skull in mus. Hamburg. Individual not quite adult, as the last upper molar is not fully erupted. Total length 830 mm, that means it is larger than the adult skull figured by Blainville (Osteographie, Ongulogrades, taf. IV), as well as two skulls measured by Gray (Cat. Mammalia, 1869, p. 324).
Width of the incisor part of the lower jaw, 120 mm
Basallength of the skull, from front part of the Foramen magn.occip. To the front part of one of the intermaxillaria is 712 mm.
The length on top from the middle of the crista at the back to the front edge of the nasalia is 810 mm
The greatest length 830 mm.
The greatest width at the cheekbones is 355 mm.
The length of the lower jaw from the front part of the incisorpart to the baclk edge of the Proc. Condyl. Is 577 mm
Length of right lower , fully developed, molar row (6 molar teeth) is 260 mm.
(On the left side, the first molar is missing).
Length of the upper molar row (also 6 molars) is 300 mm. This includes the last molar which is not fully erupted.
Therefore R. simus would be one of the animals with the longest skulls. The length can be compared to some extinct rhino species like R. tichorhinus and R. merckii. The largest skull of R. merckii, measured by J.F. Brandt, was 830 mm long, and the longest tichorhinus-skull was 850 mm.
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