| Abstract: | The orthid brachiopod genera Hebertella, Dalmanella, and Heterorthina are abundant in Middle and Upper Ordovician strata in Kentucky. ‘Nine species are described: Hebertella frankfortensis Foerste; H. parksensis Foerste; H. occidentalis (Hall); Dalmanella bassleri Foerste; D. fertilis (Ulrich); D. meeki (Miller); D. multisecta (Meek); D. sulcata Cooper; and Heterorthina macfarlani Neuman. The species designations Hebertella sinuata (Hall), H. subjugata (Hall), and H. latasulcata Foerste are placed in synonymy with H. occidentalis (Hall). The stratigraphic distribution of each species is given. Large collections of silicified specimens allowed the recognition of the considerable variability characteristic of most of the species. External morphology distinguishes species of Hebertella, whereas internal features are critical to recognition of species of Dalmanella and Heterorthina. |
| Genre: | USGS Numbered Series |
| ProdID: | 38638 |
| Citation Author: | Walker, L. G. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | 17 p.; 5 plates |
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| Citation Series: | Professional Paper |
| Citation Series Code: | PP |
| Citation Series Number: | 1066-M |
| Citation Search Results Text: | The brachiopod genera Hebertella, Dalmanella, and Heterorthina from the Ordovician of Kentucky; 1982; PP; 1066-M; Walker, L. G. |
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| Citation Year: | 1982 |
| Type: | citation/reference |
| Text: | The brachiopod genera Hebertella, Dalmanella, and Heterorthina from the Ordovician of Kentucky; 1982; PP; 1066-M; Walker, L. G. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/pp/1066m/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/pp/1066m/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
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