| Abstract: | The Late Carboniferous bransoniid conocardioidean Apotocardium lanterna (Branson, 1965) had an entirely aragonitic shell with a finely prismatic outer shell layer, a predominantly crossed lamellar to complex crossed lamellar middle shell layer, and an "inner" shell layer of finely textured porcelaneous and/or matted structure. This "inner" layer is probably homologous with the inner part of the middle shell layer and the inner layer sensu stricto of bivalved molluscs. Shell morphological and microstructural convergences between conocardioids and living heart cockles suggest that at least some conocardioids may have farmed algal endosymbionts in their posterior mantle margins. This symbiosis may have helped conocardioids compete with the biomechanically more efficient bivalves during the latter part of the Paleozoic. |
| Genre: | Article |
| ProdID: | 70025821 |
| Citation Author: | Rogalla, N. S.; Carter, J. G.; Pojeta, Jr. , J. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 673 |
| Citation Issue: | 4 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Journal of Paleontology |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 19 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Shell microstructure of the late Carboniferous rostroconch mollusc Apotocardium lanterna (Branson, 1965); 2003; Article; Journal; Journal of Paleontology; Rogalla, N. S.; Carter, J. G.; Pojeta, Jr. , J. |
| Citation Start Page: | 655 |
| Citation Volume: | 77 |
| Citation Year: | 2003 |
| Type: | citation/reference |
| Text: | Shell microstructure of the late Carboniferous rostroconch mollusc Apotocardium lanterna (Branson, 1965); 2003; Article; Journal; Journal of Paleontology; Rogalla, N. S.; Carter, J. G.; Pojeta, Jr. , J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 1 Jan 2003 00:00 -0600 |
| Publisher: | |
