Project 773: M. A. O'Leary, J. I. Bloch, J. J. Flynn, T. J. Gaudin, A. Giallombardo, N. P. Giannini, S. L. Goldberg, B. P. Kraatz, Z. Luo, J. Meng, X. Ni, M. J. Novacek, F. A. Perini, Z. S. Randall, G. W. Rougier, E. J. Sargis, M. T. Silcox, N. B. Simmons, M. Spaulding, P. M. Velazco, M. Weksler, J. R. Wible, A. L. Cirranello. 2013. The Placental Mammal Ancestor and the Post-K-Pg Radiation of Placentals. Science. 339 (6120):662-667.

Morphobank media number

Taxonomic name
Rattus norvegicus

Rattus norvegicus (AMNH/Mammalogy:207554)

braincase ventral

Media loaded by
Marcelo Weksler

Copyright holder
Musser, courtesy of the American Museum of Natural History

Copyright information
Permission to use media on MorphoBank granted by copyright holder

Bibliographic Reference
Musser, G. G. 1981. Results of the Archbold Expeditions. No. 105. Notes on systematics of Indo-Malayan murid rodents, and descriptions of a new genera and species from Ceylon, Sulawesi, and the Philippines. Bulletin of the American Museum of Natural History. Vol. 168(3), pp. 229-334.

Media notes
FIG. 5. Ventral views of adult crania (x 5): A, Rattus norvegicus (AMNH 207554); B, Leopoldamys neilli (AMNH 237591). Abbreviations: AB, auditory bulla; BA, attachment of bulla; BO, basioccipital; BS, basisphenoid; DLR, divided lingual root of M'; EUT, eustachian tube; FO, foramen ovale; MF, mesopterygoid fossa; MLF, middle lacerate foramen; PB, palatal bridge; PS, presphenoid; PTF, pterygoid fossa; PTP, pterygoid platform, which is used here to indicate a smooth or moundlike transition from the platform to side of the braincase; PTR, pterygoid ridge, which marks the edge of the platform in Rattus norvegicus; SLR, single lingual root of MI; SPT, sphenopterygoid (or interpterygoid) canal or foramen; SV, sphenopalatine vacuity; TRC, transverse (or basisphenoid) canal. See text for explanations and Wahlert (1974) for additional information about foramina.

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