Where: Germany (48.2° N, 8.8° E)
• Paleocoordinates: 37.8° N, 28.9° E (Wright 2013)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Middle Toarcian to Middle Toarcian (182.0 - 175.6 Ma)
• From jurense-Bank, an 8 cm thick marl interval. Crinoids come from matrix washings from ammonoid blocks, so it's not possible to determine whether they came from the lower or upper part of the bank. Probably came from lower part because hanging wall is poor in crinoids. Collection 31987 is combination of samples 1-4, but they are not separated in that reference.
• bed-level stratigraphic resolution
Environment/lithology: lithified marl
Size class: macrofossils
Collected in 1990; reposited in the SMNS
Primary reference: M. Jäger. 1995. Echinodermata aus dem Ober-Toarcium und Aalenium Deutschlands I. Crinoidea: Cyrtocrinina und Millericrinina. Stuttgarter Beiträge zur Naturkunde Serie B (Geologie und Paläontologie) 226:1-51 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 139789: authorized by Matthew Clapham, entered by Matthew Clapham on 18.02.2013
Creative Commons license: CC0 (CC0)
Taxonomic list
Crinoidea | |
Praetetracrinus inornatus Simms 1989 Sea lily
Praetetracrinus kutscheri Jäger 1995 Sea lily |