Blankenberg Quarry, Cadier en Keer [Valkenburg Chalk, Maastricht Fm] (Cretaceous of Netherlands)

Where: Netherlands (50.8° N, 5.8° E: paleocoordinates 43.4° N, 4.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Valkenburg Member (Maastricht Formation), Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Valkenburg Chalk of the Maastricht Fm, and overlies the Lanaye Chalk of the Gulpen Fm. AGE: early Late Maastrichtian, on the basis of ammonite and belemnite biostratigraphy. STRATIGRAPHIC POSITION: From the base of the Valkenburg Chalk.

• bed-level stratigraphic resolution

Environment/lithology: lithified, phosphatic lime mudstone

• ENVIRONMENT: Shallow marine carbonate setting.
• SPECIFIC LITHOLOGY: No specific lithological data reported in text. Probably chalk. LITHIFICATION:

Size class: macrofossils

Preservation: cast, mold/impression, replaced with phosphate

Collection methods: surface (in situ),

• COLLECTORS: Multople collectors. REPOSITORY: Naturhistorisch Museum, Maastricht (NHM).

Primary reference: W. J. Kennedy. 1986. The ammonite fauna of the type Maastrichtian with a revision of Ammonites colligatus Binkhorst, 1861. Bull. Inst. r. Sci. nat. Belg.: Science de la Terre 56:151-267 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 82925: authorized by Austin Hendy, entered by Austin Hendy on 05.08.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to representative, common, and biostratigraphically important ammonoids and belemnites. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature and species-resolution identifications.
Show authors, comments, and common names
Cephalopoda
 Ammonitida - Baculitidae
Baculites "sp. 1", Baculites anceps
Baculites "sp. 1" Lamarck 1799 ammonite
Baculites anceps Lamarck 1822 ammonite