Dorsal valve of specimen L PZ-D.293 (olim 728) - ephibiontic on Ceratophyllum ceratites var. marginata in dorsal and apical views from Skały section

Diagnoza

Porównanie

Calcerous dorsal valves, irregulary conical, with markedly concave flanks and subcentral apex enable identification of the genus but not species.

Autekologia

Występowanie geograficzne

only in Grzegorzowice- Skały section (Skały beds), Poland.

Zasięg czasowy

Mid Devonian (Late Eifelian- Mid Givetian).

Materiały muzealne

ZPAL: 5 specimens on four hosts (Leptagonia analogaeformis, Aulacella prisca, Atrypa depressa, Ceratophyllum ceratites).

Literatura

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.