Vijlen Chalk, Gulpen Fm (Cretaceous of Netherlands)

Where: Netherlands (50.8° N, 6.0° E: paleocoordinates 43.3° N, 4.8° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Vijlen Member (Maastricht Formation), Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Vijlen Chalk of the Maastricht Fm, and overlies the Beutenaken Chalk of the Gulpen Fm. Where the Beutenaken Chalk is missing, the Vijlen Chalk rests unconformably on the Zeven Wegen Chalk. AGE: late Early Maastrichtian, on the basis of ammonite and belemnite biostratigraphy. STRATIGRAPHIC POSITION: Collection is a composite of the entire member.

• member-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: Lithified on the basis of figured specimens.

Size class: macrofossils

Preservation: cast, mold/impression, replaced with phosphate

Collection methods: surface (in situ),

• COLLECTORS: Multople collectors. REPOSITORY: Institut Royal de Science Naturelles de Belgique (IRSNB), Naturhistorisch Museum, Maastricht (NHM), Museum für Naturkunde, Berlin (MNB)

Primary reference: W. J. Kennedy. 1986. The Campanian-Maastrichtian ammonite sequence in the environs of Maastricht (Limburg, the Netherlands), Limburg and Liége provinces (Belgium). Newsletters in Stratigraphy 16(3):149-168 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 82411: authorized by Austin Hendy, entered by Austin Hendy on 27.07.2008

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.
Cephalopoda
 Ammonitida - Baculitidae
Baculites sp. Lamarck 1799 ammonite
 Ammonitida - Scaphitidae
Acanthoscaphites tridens Kner 1848 ammonite
Hoploscaphites tenuistriatus Kner 1848 ammonite
 Belemnitida -