Schacht Ernestine, Rothenburg an der Saale (Permian of Germany)

Also known as Mansfelder Revier; Burg-Oerner Revier; Kupferschiefer, Copper Shale

Where: Saxony Anhalt, Germany (51.6° N, 11.8° E: paleocoordinates 16.3° N, 23.4° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Kupferschiefer Member (Werra Formation), Wuchiapingian (259.9 - 254.2 Ma)

• The Kupferschiefer is the basalmost unit of the Werra Formation, the latter being the basalmost formation of the Zechstein Series (Uppermost Permian of Central Europe).

•Brauns et al. (2003) reported a date of 257.3±1.6 Ma (Late Permian/Lopingian: Wuchiapingian) for the Kupferschiefer based on a Re-Os geochronological study. The presence of the conodont Mesogondolella britannica in Kupferschiefer equivalents supports a middle Wuchiapingian age for the Protorosaurus-bearing levels (Legler et al. 2005, 2008).

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified, black, carbonaceous claystone

• Deposition took place "below wave base in a stratified water body (Paul, 1986a)" (Becker & Bechstädt, 2006, Sedimentology 53, pp. 1083–1120)

•"Sedimentation rates during Kupferschiefer deposition were low (5 mm kyr)1; Füchtbauer, 1968). The Kupferschiefer is thus interpreted as a condensed section, which formed during maximum flooding (Ross & Ross, 1995; Strohmenger et al., 1996a)." (Becker & Bechstädt, 2006)

Size class: macrofossils

Preservation: permineralized

Collected in 1793; reposited in the MfN

Collection methods: quarrying,

• According to von Meyer (1856) one part of the Protorosaurus specimen was reposited in the "Königliche Mineraliensammlung zu Berlin" and the counterpart was in the collections of the "Gesellschaft der naturforschenden Freunde zu Berlin" at that time. Specimen now in collections of Museum fuer Naturkunde, Berlin

Primary reference: H. v. Meyer. 1856. Zur Fauna der Vorwelt. Band 3. Saurier aus dem Kupferschiefer der Zechsteinformation 28 p. [J. Mueller/T. Liebrecht/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 93035: authorized by Johannes Mueller, entered by Torsten Liebrecht on 23.12.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Eosuchia -
Protorosaurus speneri Meyer 1832 archosauromorph
MfN MB.R 2168, part and counterpart