. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 50 Bulletin Museum of Comparative Zoology, Vol. 147, No. 1. 1 cm Figure 33. Tentative reconstruction of the skull of Carpolestes, based on PU Nos. 14235, 19409, 19422, 14077, 17978, and 19349. Angular process of mandible restored from PU 21399 (Carpodaptes hazelae); upper canine restored from AMNH 33980 {Carpodaptes hazelae). on stratigraphic criteria eventually may prove justifiable, but is precarious at present. C. dubius is surely the immediate ances- tor of C. nigridens. Future discoveries may reveal that P3 morph
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 50 Bulletin Museum of Comparative Zoology, Vol. 147, No. 1. 1 cm Figure 33. Tentative reconstruction of the skull of Carpolestes, based on PU Nos. 14235, 19409, 19422, 14077, 17978, and 19349. Angular process of mandible restored from PU 21399 (Carpodaptes hazelae); upper canine restored from AMNH 33980 {Carpodaptes hazelae). on stratigraphic criteria eventually may prove justifiable, but is precarious at present. C. dubius is surely the immediate ances- tor of C. nigridens. Future discoveries may reveal that P3 morphology is variable and not taxonomically significant, and that C. dubius should be placed in synonymy. As long as the two species are maintained, however, mandibular dentitions of Carpo- lestes will be assignable to species only if associated with P3. Consequently, about a dozen specimens, including those from Buckman Hollow (USNM 21280) and Togwotee Pass (AMNH 88198), and several from the Big Horn Basin, must, for the present, be referred to Carpolestes, species indeterminate. A tentative reconstruction of the skull of Carpolestes, based primarily on specimens of C. dubius, is presented in Figure 33. The Phyletic Position of Saxonella D. E. Russell (1964) described Saxonella crepaturae, from the Middle Paleocene of Walbeck, Germany, and referred it to the Carpolestidae. Differences between the new form and the North American carpo- lestids compelled Russell to propose two subfamilies, the Carpolestinae, for the North American genera, and the Saxonel-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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