Where: Switzerland (47.4° N, 7.7° E: paleocoordinates 36.4° N, 16.8° E)
• coordinate stated in text
• hand sample-level geographic resolution
When: Early/Lower Toarcian (183.0 - 182.0 Ma)
• 30 cm bed
• bed-level stratigraphic resolution
Environment/lithology: offshore; poorly lithified, gray claystone
Size classes: macrofossils, mesofossils, microfossils
Collection methods: bulk, sieve,
Primary reference: H. Hess. 1962. Mikropaläontologische Untersuchungen an Ophiuren II. Die Ophiuren aus dem Lias (Pliensbachien-Toarcien) von Seewen (Kt. Solothurn). Bericht der schweitzerischen palaeontologischen Gesellschaft 55(2):609-656 [L. Villier/L. Villier]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 58316: authorized by Loic Villier, entered by Loic Villier on 31.01.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Foraminifera | |
"Marginulina prima" = Cristellaria (Marginulina)
"Marginulina prima" = Cristellaria (Marginulina) | |
Nodosariata | |
"Lenticulina muensteri" = Lenticulina munsteri Roemer 1839 | |
Crinoidea | |
"Balanocrinus subteroides" = Balanocrinus subsulcatus, Isocrinus sp.
"Balanocrinus subteroides" = Balanocrinus subsulcatus Munster 1831 Sea lily
Isocrinus sp. von Meyer 1836 Sea lily | |
Echinoidea | |
Echinoidea indet. Leske 1778 sea urchin | |
Ophiuroidea | |
"? Ophiopinna helvetica" = Sinosura brodiei
"? Ophiopinna helvetica" = Sinosura brodiei Wright 1866 brittle star 18 lateral shields, 5 vertebrae
| |
"Ophiomusium scabrum" = Mesophiomusium scabrum
"Ophiomusium scabrum" = Mesophiomusium scabrum Hess 1962 brittle star 191 lateral shields, 16 vertebrae
| |
"Palaeocoma gaveyi" = Palaeocoma milleri
| |
| |
Ostracoda | |
? Healdia etaulensis ostracod
Hungarella amalthei ostracod | |
Procytheridea sermoisensis ostracod
"Hutsonia" decorata ostracod | |
Cephalopoda | |
Protogrammoceras sp. Spath 1913 ammonite |