. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. B Figure 18. Crown view of right P4 of Carpodaptes hazelae, to same scale. A) AMNH 33980 (reversed), from Scarritt Quarry. B) AMNH 33981, from Scarritt Quarry. C) PU 19939, from Cedar Point Quarry. 20630, and is much reduced compared to that of Elphidotarsius. It is a vestigial peg- like tooth, with the same morphology as P3 in C. aulacodon (and similar, in fact, to P3 in Carpolestes). The morphology of P4 has been discussed above. It should be emphasized again that although P4 is unquestionably the most diagnostic ma
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. B Figure 18. Crown view of right P4 of Carpodaptes hazelae, to same scale. A) AMNH 33980 (reversed), from Scarritt Quarry. B) AMNH 33981, from Scarritt Quarry. C) PU 19939, from Cedar Point Quarry. 20630, and is much reduced compared to that of Elphidotarsius. It is a vestigial peg- like tooth, with the same morphology as P3 in C. aulacodon (and similar, in fact, to P3 in Carpolestes). The morphology of P4 has been discussed above. It should be emphasized again that although P4 is unquestionably the most diagnostic mandib- ular tooth in carpolestids, it is also the most variable. The extent of its variability is especially well demonstrated in the large sample of C. hazelae. The molars (lower and upper) of the Cedar Point specimens are virtually in- distinguishable from those of the Scarritt Quarry specimens. There is some variation, of course, in relative proportions (, relative breadth of the lower molars). A maxillary dentition (AMNH 33980) from Scarritt Quarry, described by Simpson (1937a), included two small, single-rooted teeth anterior to P3. Unfortunately, the anteriormost of these (C?), unknown in any other carpolestid specimen, has been Table 2. Metrical data for lower cheek teeth of Carpodaptes hazelae, combined samples from Scarritt and Cedar Point Quarries. N OR (mm) X s V p length breadth 56 ± .02 .142 ± .013 ± .5 55 ± .02 .134 ± .013 ± .8 M length Ml breadth 53 ± .01 .078 ± .008 ± .5 52 ± .01 .097 ± .010 ± .7 length M2 breadth 39 ± .01 .070 ± .008 ± .6 39 ± .01 .091 ± .010 ± .8 M length Ms breadth 17 ± .02 .093 ± .016 ± .9 17 ± .02 .103 ± .018 ± Mandibular depth 36 ± .04 .228 ± .027 ± .8. Please note that these images are extracted from scanned page images that may have been digitally enhanc
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