Ostrea sp. B
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publication ID |
https://doi.org/ 10.5252/g2017n2a3 |
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publication LSID |
lsid:zoobank.org:pub:F4D33955-5823-49E9-BC9A-26DFB03038A7 |
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DOI |
https://doi.org/10.5281/zenodo.4536473 |
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persistent identifier |
https://treatment.plazi.org/id/03A9D86F-FA7C-FFDF-3EA9-90775C7495E0 |
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treatment provided by |
Plazi |
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scientific name |
Ostrea sp. B |
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( Fig. 4 View FIG O-R)
MATERIAL. — 81 specimens (MDG/LBV/Lm-31.1 to Lm-31.81).
OCCURRENCE. — Turonian of Gabon (this study).
Shell is medium to large, inequivalve, inequilateral, elongated, suborbicular to elliptical shape in outline. LV slightly inflated and RV flat. Umbo is small and opisthogyrate. Ligamental area is narrow and small. Anterior margin is curved. Posterior margin is straight or curved. Ventral margin is evenly rounded. Attachment area is medium, depressed occupies the posterodorsal portion of the LV.Its ornamentation consists of numerous radial ribs which are crossing by concentric growth lamellae at irregular intervals. Ribs start at the umbonal area, occasionally carrying small spines near ventral margin. RV ornamented by concentric fine growth squamae.
REMARKS
Ostrea tunetana Munier-Chalmas, 1881 shows some similarity with our material but differs in having longer and more pointed umbo and straight ligamental area.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.