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. Bulletin. Natural history. ORDOVICIAN APPALACHIAN ECOLOGY BRACHIOPOD ZOOGEOGRAPHY 29. FIG. 14. A generalized outline of the distribution of the most abundant brachiopod species in the central Appalachian Upper Ordovician. The three major brachiopod faunal provinces are: I. Sowerbyella {Sowerbyella) sericea Rafinesquina "alternata" Onniella multisecta n. Lingula? Orthorhynchula linneyi in. Hebertella sinuata Zygospira recurvirostra Note that overlap of the brachiopod provinces may not result in actual mixing of two faunas since the faunas are separated stratigraphically (see Fig. 15
. Bulletin. Natural history. ORDOVICIAN APPALACHIAN ECOLOGY BRACHIOPOD ZOOGEOGRAPHY 29. FIG. 14. A generalized outline of the distribution of the most abundant brachiopod species in the central Appalachian Upper Ordovician. The three major brachiopod faunal provinces are: I. Sowerbyella {Sowerbyella) sericea Rafinesquina "alternata" Onniella multisecta n. Lingula? Orthorhynchula linneyi in. Hebertella sinuata Zygospira recurvirostra Note that overlap of the brachiopod provinces may not result in actual mixing of two faunas since the faunas are separated stratigraphically (see Fig. 15). Brachiopod province I, predominantly composed of orthids and strophomenids, overlaps brachiopod province II. There is, however, only a very limited mixing of the associated abundant species, because province I is stratigraphically lower than pro- vince II (Fig. 15). The fauna of brachiopod provinces I and II exhibit a fairly regular succession of species; in province I strophomenids far outnumber the stratigraphically lower orthids and spiriferids (Fig. 15). Province II, an assemblage of rhynchonellid and linguloid brachiopods, occupies the mid-portion of the central Appalachians and is usually confined to the westernmost upper Reedsville exposures. In province II the. 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, Peabody Museum of Natural History, Yale University
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Keywords: ., bookc, bookcentury1900, bookdecade1920, booksubjectnaturalhistory