Where: Switzerland (47.5° N, 8.2° E: paleocoordinates 36.5° N, 11.2° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Insektenmergel Formation, Middle Hettangian (201.3 - 196.5 Ma)
• Schlotheimia angulata zone
• member-level stratigraphic resolution
Environment/lithology: offshore; poorly lithified claystone
Size classes: macrofossils, mesofossils
Preservation: replaced with calcite, replaced with pyrite
Collection methods: quarrying, chemical, mechanical,
Primary reference: H. Hess. 1960. Ophioderma escheri Heer aus dem unteren Lias der Schambelen (Kt. Aargau) und verwandete Lias-Ophiuren aus England und Deutschland. Eclogae Geologicae Helvetiae 53(2):757-793 [L. Villier/L. Villier/L. Villier]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 61725: authorized by Loic Villier, entered by Loic Villier on 24.06.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Echinoidea | |
Diademopsis heerii sea urchin | |
Ophiuroidea | |
Palaeocoma escheri Herr 1865 brittle star | |
Crinoidea | |
Isocrinus angustatus Sea lily | |
Cephalopoda | |
Schlotheimia angulata Schlotheim 1820 ammonite | |
Bivalvia | |
Lima pectinoides file clam | |
Malacostraca | |
Glyphea sp. Von Meyer 1835 decapod | |
Eryon sp. Desmarest 1822 decapod | |
Penaeus sp. Fabricius 1798 decapod |