. Bulletin. Natural history; Natuurlijke historie. 30 PEABODY MUSEUM BULLETIN 34 BRACHIOPOD-STRAT I GRAPHIC RELATIONSHIPS LU > a UJ a: a: LlI Ql Q. -3 O lO CO - 0-- — UJ -A Q > Q CO — Q. Li n guI a ? Or thorhyn chula linneyi n Rafinesquina alternata Sowerbyel I a (Sower by e I la) sericea Sowerbyella(Sowerbyella) sericea Onniella mult i sect a Sowerbyel la (Sowerbyella)sericea Onniella multisecta Zygospira modesfa FIG. 15. A composite columnar section from the upper and middle(?) Reedsville in south- central Pennsylvania showing the stratigraphic-faunal separation of brachiopod provinces
. Bulletin. Natural history; Natuurlijke historie. 30 PEABODY MUSEUM BULLETIN 34 BRACHIOPOD-STRAT I GRAPHIC RELATIONSHIPS LU > a UJ a: a: LlI Ql Q. -3 O lO CO - 0-- — UJ -A Q > Q CO — Q. Li n guI a ? Or thorhyn chula linneyi n Rafinesquina alternata Sowerbyel I a (Sower by e I la) sericea Sowerbyella(Sowerbyella) sericea Onniella mult i sect a Sowerbyel la (Sowerbyella)sericea Onniella multisecta Zygospira modesfa FIG. 15. A composite columnar section from the upper and middle(?) Reedsville in south- central Pennsylvania showing the stratigraphic-faunal separation of brachiopod provinces I and n. See Figure 14 for geographic extent of this overlap. stratigraphic succession of the faunas follows a pattern whereby the linguloids overlie the rhynchonellids (Fig. 15). Brachiopod province III, dominated by orthids and spiriferids, broadly overlaps province II in southwestern Virginia, but there is no marked stratigraphic separation of the faunas. In the southern part of the mixed zone the linguloids of province II disappear suddenly, but Orthorhynchula linneyi is gradu- ally outnumbered by Hebertella sinuate. The two dominant species of brachiopod. 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 Peabody Museum of Natural History. New Haven : The Museum
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