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| Element homology and the evolution of dental formulae in megachiropteran bats (Mammalia, Chiroptera, Pteropodidae) ; American Museum novitates, no. 3559 |
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| Title: | Element homology and the evolution of dental formulae in megachiropteran bats (Mammalia, Chiroptera, Pteropodidae) ; American Museum novitates, no. 3559 |
| Other Titles: | Dental formulae in megabats |
| Authors: | Giannini, Norberto P. Simmons, Nancy B. |
| Issue Date: | 2007 |
| Publisher: | New York, NY : American Museum of Natural History |
| Series/Report no.: | American Museum novitates, no. 3559 |
| Abstract: | "Variation in dental formulae observed in megachiropteran bats poses element homology problems. Identity of individual teeth has been controversial, with authors differing in their assessment of individual tooth homology, particularly with respect to incisors and premolars, in several taxa. Also, newly described taxa exhibit dental formulae whose implications for tooth homology have been little discussed. We compared crown morphology, tooth replacement, and dental anomalies in representatives of all megachiropteran genera. Our observations confirm the generalized megachiropteran dental formula (34 teeth represented by I1, I2, C, P1, P3, P4, M1, M2, i1, i2, c, p1, p3, p4, m1, m2, and m3) and establishes the homology of each tooth in most megachiropteran taxa in which reduction in tooth number has taken place. Some of our conclusions confirm presumed homologies postulated by previous authors, but in other cases new homology assignments are proposed. Uncorroborated assignments are reduced... |
| Description: | 27 p. : ill. ; 26 cm. Includes bibliographical references (p. 26-27). |
| URI: | http://hdl.handle.net/2246/5849 |
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