Ventral interior of specimen ZPAL Bp. IV/28/2/3 from outcrop SK-3 in general view.

Diagnoza

Shell large, transverse, dorsibiconvex, sub rectangular in outline with markedly rounded postero-lateral and antero-lateral extremities, in older specimens not seldom lobate; anterior commissure uniplicate in adults, rectimarginate in young specimens, linguiform; dorsal valve strongly convex, elliptic to parabolic in anterior view, the umbonal region not seldom extending more posteriorly than the ventral umbo, dorsal beak rather thick, markedly incurved.

Porównanie

Nearly all material from the Łysogóry Region belong to this morphotype, characterised by maximal shell width located anteriorly (at 2/3 - 7/8 of the length); a few poorly preserved shells show some features possibly transitional to the morphotype S. schnuri schnuri Struve, 1965.

Autekologia

Występowanie geograficzne

Eifel region in Germany and Skały (Holy Cross Mts.) in Poland.

Zasięg czasowy

Mid Devonian, Mid to Late Eifelian.

Materiały muzealne

88 articulated shells, 2 dorsal valves and 5 ventral ones from the outcrop SK-3 at Skaly (ZPAL Bp IV; L PZ-D.557, olim 770) and specimens from Eifel region (SMF).

Literatura

Gurich, G. 1896. Das Palaeozoicum im polnischen Mittelgebirge.- Verh. Russ.-Kais. Min. Ges. St.-Petersb. (2) 32: 1-539, Plates 1-15, map; St-Petersburg.

Halamski, A.T. 2009. Middle Devonian Brachiopods from the northern Part of the Holy Cross Mountains, Poland in relation to selected coeval faunas. Part One: Introduction, Lingulida, Craniida, Strophomenida, Productida, Protorthida, Orthida. Palaeontographica Abteilung A, 287: 41-98.

Struve, W. 1965a. Schizophoria striatula und Schizophoria excisa in ihrer ursprunglichen Bedeutung. Senck. leth. 46 (2/3): 193-215, Pls 19- 21; Frankfurt am Main.