Ruhr & Co., Station Beckum, Nordrhein-Westfalen (Cretaceous of Germany)

Where: Germany (51.8° N, 8.0° E: paleocoordinates 42.3° N, 8.9° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Beckum Member (Ahlen Formation), Late/Upper Campanian (83.5 - 70.6 Ma)

• member-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified marl and lithified limestone

• shallow sea, wave influence, varying waterdepth
• succession (<15m) of: marls, gray marls, calcareous marls, dark argillaceous marls and limestones

Size class: macrofossils

Preservation: cast

Collection methods: Most specimens were collected by the author himself from the 1930s to the 1960s. Lists also include some additional material from museum collections.

Primary reference: R. Giers. 1964. Die Großfauna der Mukronatenkreide (unteres Obercampan) im östlichen Münsterland. Fortschr. Geol. Rheinld. u. Westf. 7:213-294 [M. Aberhan/S. Nurnberg]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 64127: authorized by Martin Aberhan, entered by Sabine Nürnberg on 01.09.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Polychaeta
 Sabellida - Serpulidae
Bivalvia
 Myalinida - Inoceramidae
Inoceramus balticus Bohm 1907 clam
incl. I. balt. marcki, I. balt. pteroides, I. balt. beckumiensis
 Protobranchia -
Phaenodesmia foersteri clam
listed as Ph. försteri
Cephalopoda
 Belemnitida - Belemnitellidae
 Ammonitida - Pachydiscidae
"Pachydiscus subrobustus" = Pachydiscus (Pachydiscus) subrobustus Seunes 1892 ammonite
 Ammonitida - Scaphitidae
 Ammonitida - Baculitidae
Baculites vertebralis Lamarck 1801 ammonite
Chondrichthyes
 Hybodontiformes - Ptychodontidae
Ptychodus sp. Agassiz 1837 elasmobranch
Echinoidea
 Holasteroida - Holasteridae
Echinocorys perconicus Hagenow 1840 sea urchin
Echinocorys ovatus Leske 1778 sea urchin
 Spatangoida - Micrasteridae
Micraster glyphus Schluter 1869 heart urchin
Hexactinellida
 Hexactinosa - Aphrocallistidae
Aphrocallistes alveolites Roemer 1841 glass sponge
Anthozoa
 Scleractinia - Caryophylliidae
Parasmilia centralis Mantell 1822 stony coral