Vestigial Tooth Anatomy and Tusk Nomenclature for Monodon Monoceros

@article{Nweeia2012VestigialTA,
  title={Vestigial Tooth Anatomy and Tusk Nomenclature for Monodon Monoceros},
  author={Martin T. Nweeia and Frederick C. Eichmiller and Peter V. Hauschka and Ethan M. Tyler and James G. Mead and Charles Potter and David P. Angnatsiak and Pierre R. Richard and Jack R. Orr and Sandie R. Black},
  journal={The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology},
  year={2012},
  volume={295}
}
Narwhal tusks, although well described and characterized within publications, are clouded by contradictory references, which refer to them as both incisors and canines. [...] Key Result Examination of 131 skull samples, including 110 museum skull specimens and 21 harvested skulls, revealed the erupted tusks surrounded by maxillary bone over the entire length of their bone socket insertion, and are thus more accurately termed caniniform or canine teeth.Expand
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References

SHOWING 1-10 OF 100 REFERENCES
Considerations Of Anatomy, Morphology, Evolution, and Function for Narwhal Dentition
Interdisciplinary studies of narwhal cranial and tooth anatomy are combined with Inuit traditional knowledge to render a more complete description of toothrelated structures and to propose a new… Expand
CRANIAL AND DENTAL ANATOMY OF ANTILOHYRAX PECTIDENS: A LATE EOCENE HYRACOID (MAMMALIA) FROM THE FAYUM, EGYPT
TLDR
Comparisons with newly recovered and as yet undescribed cranial material of Titanohyrax reveal more characters shared by these genera, strengthening the case for their inclusion as sister taxa within the Titanohyracinae. Expand
Cranial structure and relationships of the Liassic mammal Sinoconodon
TLDR
The structure of recently discovered ‘Rhaeto-Liassic’ mammals and that of Sinoconodon indicates that there was greater diversity among the earliest known mammals than was previously thought. Expand
The anatomy of Odobenocetops (Delphinoidea, Mammalia), the walrus‐like dolphin from the Pliocene of Peru and its palaeobiological implications
TLDR
The Pliocene Beds of the Pisco Formation on the southern coast of Peru have yielded three new skulls of the walrus-like odontocete, Odobenocetops, which confirm referral to the Order Cetacea and the morphology of the humerus reinforces affinities of odobenOCetopsids to monodontids. Expand
Histogenesis of the chequered pattern of ivory of the African elephant (Loxodonta africana).
TLDR
Investigations showed that the distinctive pattern of elephant ivory was the result of the sinusoidal, centripetal course followed by dentinal tubules, and it was suggested that this leads to cell crowding, increased pressure between odontoblasts and subsequent apical movement of their cell bodies, cell degeneration and fusion. Expand
Odobenocetops peruvianus, theWalrus-Convergent Delphinoid, Mammalia: Cetacea, from the Early Pliocene of Peru
TLDR
The highly modified morphology of the rostrum indicates that there was no melon as in all other odontocetes, and therefore that Odobenocetops was probably unable to echolocate; binocular vision could have compensated for this inability. Expand
The skull of the foetal narwhal, Monodon monoceros L
  • N. B. Eales
  • Biology, Medicine
  • Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
  • 1950
TLDR
The study leads to the conclusion that the narwhal is more closely related to the Delphinidae than to the Phocaenidae, and that it approaches the DelPHinidae through Globiocephala. Expand
Tooth eruption in Reeves' muntjac (Muntiacus reevesi) and its use as a method of age estimation (Mammalia: Cervidae)
The sequence of tooth eruption and replacement in Reeves' muntjac was determined from captive animals of known age. Pronounced sexual dimorphism is shown by the permanent upper canine which in the… Expand
Colyer's Variations and diseases of the teeth of animals
TLDR
This chapter discusses variations in Number, Sixe and Shape, as well as other Disorders of Teeth and Jaws, and some of the causes of tooth destruction from causes other than caries. Expand
Discriminating Proboscidean Taxa Using Features of the Schreger Pattern in Tusk Dentin
TLDR
The ability of the Schreger pattern to distinguish tusk dentin of proboscidean taxa should prove useful to archaeologists in a variety of contexts. Expand
...
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