Entolium lunare (F. A. Roemer, 1839)
ROEMER, F. A. 1839. Die Versteinerungen des Norddeutschen Oolithen-Gebirges. Ein Nachtrag. iv, 59 p., pls. 17-20. Im Verlage der Hahn'schen Hofbuchhandlung. Hannover, 1839 [p. 26]
1833 Pecten glaber Hehl in v. Zieten, 1833
1839 Pecten lunaris F. A. Roemer, 1839
1845 Pecten liasianus Nyst, 1845
1850 Pecten hehlii Orbigny, 1850
1850 Pecten palaemon Orbigny, 1850
1850 Pecten philenor Orbigny, 1850
1850 Pecten proeteus Orbigny, 1850
1856 Pecten sepultus Quenstedt, 1856
1858 Pecten amatus Andler, 1858
1869 Pecten frontalis Dumortier, 1869
1875 Pecten demissaries Cross, 1875
1888 Pecten lundgreni Moberg, 1888
1891 Pecten diblasii Di Stefano, 1891
1895 Pecten stewartianus Lundgren, 1895
1895 Pecten callosus Lundgren, 1895
1904 Chlamys (Pseudamussium) chartroni Cossmann, 1904
1915 Pecten (Entolium) fraiponti Rollier, 1915
1916 Pecten glaphyrus Philippi in Jaworski, 1916
1839 Pecten lunaris F. A. Roemer, 1839
1845 Pecten liasianus Nyst, 1845
1850 Pecten hehlii Orbigny, 1850
1850 Pecten palaemon Orbigny, 1850
1850 Pecten philenor Orbigny, 1850
1850 Pecten proeteus Orbigny, 1850
1856 Pecten sepultus Quenstedt, 1856
1858 Pecten amatus Andler, 1858
1869 Pecten frontalis Dumortier, 1869
1875 Pecten demissaries Cross, 1875
1888 Pecten lundgreni Moberg, 1888
1891 Pecten diblasii Di Stefano, 1891
1895 Pecten stewartianus Lundgren, 1895
1895 Pecten callosus Lundgren, 1895
1904 Chlamys (Pseudamussium) chartroni Cossmann, 1904
1915 Pecten (Entolium) fraiponti Rollier, 1915
1916 Pecten glaphyrus Philippi in Jaworski, 1916
Camptonectes liasicus, Nyst sp.; E. Bayle, 1878, Explication de la carte géologique de France. Tome quatrième, Atlas. Première partie. Fossiles principaux des terrains, plate 121, figure 2 (Pecten lunaris F. A. Roemer, 1839; fide A. L. A. Johnson 1984, p. 37)
|
«P. (Pleuronectes) testa plana orbiculari concentrice substriata, angulo marginum cardinalium obtusissimo.
Es gehört diese Form zu den Pleuronectiden. Die Schalen sind sehr flach gewölbt, zirkelrund, nur undeutlicll concentrisch gestreift und zielIllich dick. Der Sclllosskantenwinkel beträgt etwa 150 Grad. Findet sich iIn unteren Lias des Adenberges bei Ocker, und hat einen DurchInesser von 3½ Zoll.» FRIEDERICH ADOLPH ROEMER, 1839
|
«2. AMENDED DIAGNOSIS
Distinguished from E. (E.) corneolum by the presence of a small byssal notch in the juvenile and from E. (E.) orbiculare by the smooth right valve.
3. AMENDED DESCRIPTION
Disc sub-ovate, higher than long early in ontogeny, becoming longer than high (text fig. 19). Maximum height probably 116 mm (BM 46444) but possibly as much as 145 mm (see Section 4). Umbonal angle relatively invariant at any one size but increasing at a decreasing rate during ontogeny (text fig. 21) to give concave dorsal margins.
Equilateral, approximately equivalve, low convexity. Intersinal distance slightly greater in left valve than right, increasing at a decreasing rate in both (text figs. 22, 23). Small juvenile byssal notch becoming almost non-existent later in ontogeny (PI. 1, Fig. 18). Disc flanks low but auricles well demarcated from disc. On left valve both auricles meeting hinge at an obtuse angle and disc at an acute angle. On right valve both auricles extended dorsally beyond hinge line, posterior meeting disc at an acute angle, anterior meeting disc at an approximate right angle. Height of right valve anterior auricle (text fig. 24) and separation of auricular apices (text fig. 20) variable and increasing at a decreasing rate in both. Anterior hinge length slightly greater than posterior, increasing at a decreasing rate in both (text figs. 25, 26). Valve exteriors ornamented only with very fine comarginal striae. Shell thin with at least one sub-layer in the outer shell layer composed of divaricate fibres (text fig. 27; see p. 35).» JOHNSON, A. L. A. 1984. The palaeobiology of the bivalve families Pectinidae and Propeamussiidae in the Jurassic of Europe. Zitteliana, 11: 1-235, pls. 1-11. [p. 37, 38, 40]
|
Entolium (Entolium) lunare (Roemer 1839); A. L. A. Johnson, 1984, The palaeobiology of the bivalve families Pectinidae and Propeamussiidae in the Jurassic of Europe, plate 1, figures 17, 18, ?23.
|