| Abstract: | Four Paleozoic bivalved genera are assigned to the new molluscan class Rostroconchia: Eopteria, Euchasma, Conocardium, and Pseudoconocardium. These mollusks have an uncoiled univalved larval shell; an untorted bivalved adult shell; no hinge teeth, ligament, or adductor muscles; and a fused, almost inflexible, hinge. Rostroconchians developed separately from the pelecypods through the ribeirioids, but are regarded as more closely related to the Pelecypoda and Scaphopoda than to other known classes of molllusks. |
| Genre: | Article |
| ProdID: | 70010169 |
| Citation Author: | Pojeta, Jr. , J.; Runnegar, B.; Morris, N. J.; Newell, N. D. |
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| Citation End Page: | 267 |
| Citation Issue: | 4045 |
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| Citation Language: | English |
| Citation Larger Work Title: | Science |
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| Citation Number Of Pages: | 4 |
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| Citation Search Results Text: | Rostroconchia: A new class of bivalved mollusks; 1972; Article; Journal; Science; Pojeta, Jr. , J.; Runnegar, B.; Morris, N. J.; Newell, N. D. |
| Citation Start Page: | 264 |
| Citation Volume: | 177 |
| Citation Year: | 1972 |
| Type: | citation/reference |
| Text: | Rostroconchia: A new class of bivalved mollusks; 1972; Article; Journal; Science; Pojeta, Jr. , J.; Runnegar, B.; Morris, N. J.; Newell, N. D. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sat, 1 Jan 1972 00:00 -0600 |
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