Praechlamys subreticulata (Stoliczka, 1861)
STOLICZKA, F. 1861. Über die Gastropoden und Acephalen der Hierlatz-Schichten. Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften [Mathematisch-Naturwissenschaftliche Classe. Abt. 1, Mineralogie, Botanik, Zoologie, Anatomie, Geologie und Paläontologie], 43: 157-204, pls. 1-7. [p. 196, pl.6, figs. 1, 2]
1861 Pecten subreticulatus Stoliczka, 1861
1861 Pecten verticillus Stoliczka, 1861
1880 Pecten rusconii Canavari, 1880
1886 Pecten lacunarius Rothpletz, 1886
1861 Pecten verticillus Stoliczka, 1861
1880 Pecten rusconii Canavari, 1880
1886 Pecten lacunarius Rothpletz, 1886
F. Stoliczka, 1961, plate 6.
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«1854. Pecten reticulatus Schafhäult I, c. p. 546.
Die Schale ist breit oval, fast gleichseitig, die linke Klappe stärker gewölbt, die vordere Abdachung ist sanft gebogen, die hintere etwas kürzer und gerade. Vom Wirbel strahlen zahlreiche Rippen aus, die mit schwächeren abwechseln, welche letzteren nicht bis zum Wirbel reichen. Ausser diesen ist die Schale mit concentriscben Streifen bedeckt und es bildet sich ein ziemlich weitmaschiges Gitternetz (Fig. 2 6), wie es bei P. reticulatus Goldfuss p. 43, t. 89, f. 2 aus dem Muschelkalk von Bayreuth vorkommt. Die Ohren sind ungleich gross, mit radialen und concentriscben Streifen; das hintere ist viel kleiner und schief abgestutzt, das vordere ist an der Deckelklappe mit einem tiefen Ausschnitt für den Austritt des Byssus versehen.
Sehr häufig am Hierlalz und auf der Gratzalpe. Pecten reticulatus Schlotheim unterscheidet sich durch Mangel jeder Streifung an den Ohren und durch stärker gewölbfe Wirbel.» FERDINAND STOLICZKA, 1861
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«Praechlamys subreticulatus (STOLICZKA, 1861) (plate IV: 8-12) — Valves of P. subreticulatus are omamented by radial plicae, being very variable both in number and strength. It is possible, however, that the "fine phenotype" (plate IV: 12; see also SZENTE 1996b, pI. 1. fig. 5) represents a different species. P. subreticulatus is the most frequent bivalve species in the Lower Jurassic of the Schafberg, occurring both in the Hierlatz Limestone and the Pliensbachian red limestone.»
VÖRÖS, A., J. SZABÓ, A. DULAI, I. SZENTE, O. EBLI & H. LOBITZER. 2003. Early Jurassic fauna and facies of the Schafberg area (Salzkammergut, Austria). Fragmenta Palaeontologica Hungarica, 21: 51-82, pls. 1-8. [p. 59]
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Praechlamys subreticulatus (Stoliczka, 1861); Vörös et al., 2003, Early Jurassic fauna and facies of the Schafberg area (Salzkammergut, Austria), plate 4, figures 8-12.
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«Praechlamys subreticulatus (STOLICZKA 1861, p. 196. pl. 6, figs 1-2) was seemingly based on three syntypes. This series comprises a left valve (GBA 2858) from the coral-bearing grey Hierlatz limestone of the "Obtusus Schichten" of Gratzalpe (pl. 1, fig. 20, figured STOLICZKA 1861, pl. 6, fig. 1) and a right valve and a left one from the "Oxynotus Schichten" of the Hierlatzberg (GBA 2964, pl. 1, figs 21, 22; figured STOLICZKA 1861, pl. 6, fig. 2), differing somewhat in the number and strength of primary plicae.
The syntype series of Pecten verticillus STOLICZKA 1861 comprises three specimens: one left valve and two right ones. The specimen figured by STOLICZKA (1861, pl. 6, fig. 4, GBA 2965/III) is an internal mould of a relatively large left valve, covered with remains of shell (pl. 1, fig. 19.). The specimen GBA 2965/I (figured STOLICZKA 1861, pl. 6, fig. 3) is a very incomplete right valve with preserved dorsal margin. GBA 2965/II is a very incomplete left valve ornamented with numerous plicae (pl. 1, fig. 18). P. palosus and P. rollei can be clearly distinguished from other congeneric species. Considering their distinct features as well as their limited stratigraphic and geographic distribution, they seem to be "good" taxa. The systematics of the Formenkreis of P. subreticulatus is, however, less clear. JOHNSON (1984), in his thoroughgoing revision of the Jurassic pectinids of Europe considered all of the four species discussed above, together with P. lacunarius, as variants of Chlamys (Ch.) textoria (SCHLOTHEIM 1820), a very variable and long-ranging species. This statement was, however, based solely on the standardized number of plicae, and as he mentioned, these forms are outside the range of Ch. (Ch.) textoria in all other aspects. Preliminary study of the abundant material illustrated in pl. 1, figs 23-38. suggests that the syntypes of P. subreticulatus and P. verticillus represent extreme variants of a very variable species for which ''subreticulatus" is the available name. P. rusconii (CANAVARI 1880) from the Lower Jurassic of peninsular Italy (see MONARI 1994, p. 169, pl. 3, figs 3-6), as well as P. lacunarius (ROTHPLETZ 1886, p. 169, pl. 14, figs 18, 18a, 20) from the Hierlatzkalk of the Northern Calcareous Alps are well within the supposed range of P. subreticulatus. All of the nominal species mentioned above are characterized by ornamentation of the same style as well as by similar metric proportions. Their height/umbonal angle values are especially distinctive. The systematics of this group and its relations to some Triassic species would require, however, further studies.» SZENTE, I. 1996. Bivalve assemblages from the Austrian and Hungarian Hierlatzkalk (Lower Jurassic): a comparison. In H. Lobitzer & D. Endre (Eds.), 1996, Advances in Austrian - Hungarian Joint Geological Research, 137-145, pl. 1. Budapest. [p. 140, 141]
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Praechlamys subreticulatus (Stoliczka 1861); I. Szente, 1996, Bivalve assemblages from the Austrian and Hungarian Hierlatzkalk (Lower Jurassic): a comparison, plate 1, figures 23-38.
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