. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 450 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY Archeria (formerly called "Crieotus"). This is (except in late horizons) a small form, with vertebral centra generally averag- ing little over 20 mm. in diameter. Some years ago, while explor- ing low horizons in the Permian which are close to the Carboni- ferous boundary and were formerly considered Carboniferous in age, a party from this museum discovered a "pocket" in south- eastern Archer County filled with disarticulated and generally weathered bone
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 450 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY Archeria (formerly called "Crieotus"). This is (except in late horizons) a small form, with vertebral centra generally averag- ing little over 20 mm. in diameter. Some years ago, while explor- ing low horizons in the Permian which are close to the Carboni- ferous boundary and were formerly considered Carboniferous in age, a party from this museum discovered a "pocket" in south- eastern Archer County filled with disarticulated and generally weathered bones and bone fragments. This "Prideaux pocket" lies in the valley of the West Fork of the Trinity River, in Sec- tion 1, IRR Co. Survey, Abstract 2237. The local stratigraphy is poorly known, but the locality is probably in the Pueblo for- mation, close to the base of the Wichita group and not far above the summit of the Pennsylvanian as currently defined in this region. Mingled with elements pertaining to pelycosaurs and the typical rhachitome Eryops as well as unidentifiable scraps, are numerous small centra and intercentra, with diameters averaging 22 mm., surely pertaining to Archeria. But present as well are a few much larger embolomerous central elements (MCZ 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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