Pleuronectitidae Hautmann in Carter et al., 2011
CARTER, J. G. ET AL. 2011. A Synoptical Classification of the Bivalvia (Mollusca). The University of Kansas, Paleontological Institute. Paleontological Contributions, 4: 1-47. [p. 21]
«Pleuronectitidae Hautmann, herein, fam. nov. Type genus, Pleuronectites Schlotheim, 1820, p. 217. Family diagnosis: discs procrescent, height of valves greater than length, left valve more convex than right; shell exterior smooth or with radial ribs; right anterior auricle with auricular scroll and deep byssal notch; ctenolium present; right posterior auricle obtuse but well delimited, not projecting above hinge margin; auricles of left valve lacking auricular sinuses and dorsally levelling with hinge margin; ligament alivincular-alate, small bourrelets may be present; hinge lacking resilial teeth; shell interior without buttresses; shell with thin, calcitic outer shell layer, divided into radial sectors with irregular foliated to radially irregular spherulitic prismatic to radially fibrous prismatic structure; aragonitic middle and inner shell layers with evidence of linear to slightly branching crossed lamellar structure. Comparisons and comment: Pleuronectitidae differs from other families of Pectinoidea (as defined by the presence of both an alivincular-alate ligament and a ctenolium, thus excluding the Entolioidea) in having procrescent discs, a flat right valve, a well-developed right anterior auricular scroll, and in lacking teeth and internal buttresses. This family tentatively also contains Lower and Middle Triassic Periclaraia Li Jin-hua & Ding, 1981.»
MICHAEL HAUTMANN, 2011
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Pleuronectites laevigatus; E. F. von Schlotheim, 1832, Merkwürdige Versteinerungen aus der Petrefactensammlung, plates volume II, plate 35, figures 2a, 2b.
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