. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Figure 2. Microconodon tenuirostris, ROM 44300, left dentary in lingual (top) and buccal (bottom) views. Unshaded areas represent impressions in the matrix that were filled in with colored epoxy resin during preparation. Abbreviations as in Figure 1. Scale bar = 2 mm. Hundred Road), near Midlothian, Ches- terfield County, Virginia. Latitude 77°40'17"N, longitude 37°27'50"W, Halls- boro Minute Quadrangle. Age: Late Triassic (late Carnian according to Lucas [1998]). Diagnosis. Type and only known species o
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Figure 2. Microconodon tenuirostris, ROM 44300, left dentary in lingual (top) and buccal (bottom) views. Unshaded areas represent impressions in the matrix that were filled in with colored epoxy resin during preparation. Abbreviations as in Figure 1. Scale bar = 2 mm. Hundred Road), near Midlothian, Ches- terfield County, Virginia. Latitude 77°40'17"N, longitude 37°27'50"W, Halls- boro Minute Quadrangle. Age: Late Triassic (late Carnian according to Lucas [1998]). Diagnosis. Type and only known species of genus, as diagnosed above. Discussion. The new material from the Richmond basin closely resembles ANSP 10248, the holotype of Microconodon ten- uirostris Osbom, 1886, in most compara- ble features, particularly in the structure of the postcanine teeth. The only feature showing variation is the course of the in- ternal mandibular groove, which ap- proaches the ventral margin of the dentary in ROM 44301 but extends parallel to it in. 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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