Lectotype  NHMW 1853/0038/0095 (Natica bajociensis D’Orbigny sensu Laube; original illustration from Laube, 1867: pl. 1, fig. 5) from Mid Jurassic of Balin in apertural view.

Diagnoza

The teleoconch coils are set off from one another by an initially narrow, later broad and concave ramp. The last coil is large and its flanks merge smoothly into the convex base. The growth lines are almost straight and somewhat prosocline, on the base they are curved backwards. The mouth is broadly oval with a broad abapical curve, adapically it is slightly rounded by the ramp. The outer lip is uniformly convex.

Porównanie

The numerous Pictavia species are difficult to distinguish.

Autekologia

Występowanie geograficzne

northern Germany and England; north-west part (boreholes), Balin and Sanka.

Zasięg czasowy

Mid Jurassic

Materiały muzealne

15 specimens from Balin and 1 from Sanka (NHMW).

Literatura

Bean, W. 1839. A Catalogue of the Fossils found on the Cornbrash Limestone of Scarborough: with Figures and Descriptions of some of the undescribed species. Magazin of Natural History, N. S. (2), 3, 57–62.

Gründel, J. 2012. Neubearbeitung der von Laube 1867 beschriebenen Gastropoden fauna aus dem mittleren Jura von Balin/Polen. Annalen des Naturhistorischen Museums in Wien. Serie A, 114, 193–288.

Laube, G. C. 1867. Die Gastropoden des braunen Jura von Balin. Denkschriften der kaiserlichen Akademie der Wissenschaften, 28, 1–28.