Where: Ruhr, Germany (51.4° N, 7.4° E: paleocoordinates 0.7° S, 13.8° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bilinguites metabilinguis ammonoid zone, Marsdenian (321.3 - 320.0 Ma)

• Marsdenian/R2c1

Environment/lithology: estuary or bay; lithified shale and sandstone

Size class: macrofossils

Preservation: mold/impression

Collection methods: Repository: Westfälisches Landesmuseum - Planetarium Münster (some Sippel material was later deposited here)

Primary reference: G. Bechly, C. Brauckmann, W. Zessin and E. Groning. 2001. New results concerning the morphology of the most ancient dragonflies (Insecta: Odonatoptera) from the Namurian of Hagen-Vorhalle (Germany). Journal of Zoology and Systematic Evolution 39:209-226 [M. Clapham/J. Karr]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 152121: authorized by Matthew Clapham, entered by Matthew Clapham on 08.11.2013

Creative Commons license: CC BY (attribution)