Nasal aperture area and body mass in felids Ecophysiological implications and paleobiological inferences

作者：Tonegrosa Vanessa; Petrucci Mauro; Perez Claros Juan A; Palmqvist Paul^*

来源：Geobios, 2010, 43(6): 653-661.

DOI：10.1016/j.geobios.2010.05.001

• Felidae
• Nasal chamber
• Body mass
• Ecomorphology
• Paleobiology
• Siber tooth cats

In older to study the adaptive significance of then is chamber in fads (Mammalra Carnivora) we me issued the in aperture are and used it as in indirect estimate of the nasal chamber volume We assume that this measurement relates to the metabolic demands for oxygen by animals which in turn would depend on then miss hunting techniques and/or the environment inhibited The proven relationship between nasal aperture area area body size among living felids was used to estimate the mass and different aspects of the paleobiology of nine extinct felids from the New and Old World six the subfamily Much urodontine mild three of the subfamily Felinite Results obtained confirm that the North America in lion and the Eurasian cave lion were both comparable in size with a body about 25% heavier thin in today s lions The I ire nasal apertures of smilodontines suggest that comp tied to extant felids with skulls of similar length these umbushing siber tooth c as h id more robust b

• 出版日期2010-12