Wierzbica (Jurassic of Poland)

Where: Wierzbica, Poland (51.3° N, 21.1° E: paleocoordinates 43.1° N, 27.5° E)

• coordinate estimated from map

When: Mt. Lysa Formation (Holy Cross Mountains Group), Kimmeridgian (157.3 - 152.1 Ma)

• Huge quarry, with well exposed, very fossiliferous strata supplying diverse fossils of which special attention has hitherto been paid to terebratulid brachiopods and ostreid bivalves

Environment/lithology: marine; lithified limestone

• Pure limestones (primarily oolites) grading into marlstones, locally even into soft marls; limestones range from micritic through various biocalcarites to shell hash and/or pure ostreid coquinas

Size class: macrofossils

Preservation: original calcite

Collection methods: Echinoids only; Samples obtained in Wierzbica, Poland

Primary reference: U. Radwanska. 1999. Lower Kimmeridgian echinoids of Poland. Acta Geologica Polonica 49(4):287-364 [M. Hopkins/S. Mahmood]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 157220: authorized by Melanie Hopkins, entered by Shaun Mahmood on 09.06.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Echinoidea
 Euechinoidea - Hemicidaridae
Pseudocidaris sanctacrucensis n. sp., Hemicidaris intermedia
Pseudocidaris sanctacrucensis n. sp. Radwanska 1999 sea urchin
Hemicidaris intermedia Fleming 1828 sea urchin
 Euechinoidea - Pseudodiadematidae
Tetragramma planissimum
 Irregularia - Pygasteridae
Pygaster tenuis
Pygaster tenuis sea urchin
 Irregularia - Clypeidae
Pygurus blumenbachi
 Irregularia - Nucleolitidae
Nucleolites letteroni
 Calycina -
Trochotiara kongieli
Trochotiara kongieli Radwanska 1999 sea urchin
 Cidaroida - Polycidaridae
Paracidaris smithi
Paracidaris smithi pencil urchin