PBDB Collection

Primary nodules, Phosphatic conglomerate of the Arnagar Greensand, Madsegrav, Bo (Cretaceous of Denmark)

Where: Denmark (55.1° N, 14.8° E: paleocoordinates 44.2° N, 18.5° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Leymeriella regularis ammonoid zone, Arnager Greensand Formation, Early/Lower Albian (112.0 - 109.0 Ma)

• "Three time intervals are represented in the phosphatic conglomerate. The ammonites from the primary nodules represent two time intervals in the Lower Albian (Leymeriella tardefurcata and Douvilleiceras mammilatum Zones)."

• bed-level stratigraphic resolution

Environment/lithology: shoreface; poorly lithified conglomerate

• "40 cm thick conglomerate with complexly built phosphatized pebbles and cobbles (hiatus concretions)" 30 cm above the base of the Arnager Greensand Formation

Size class: macrofossils

Preservation: mold/impression

Collection methods: Museum repositories: MGUH, MMH and MM

Primary reference: W. J. Kennedy, J. M. Hancock, and W. K. Christensen. 1981. Albian and Cenomanian ammonites from the island of Bornholm. Bulletin of the Geological Society of Denmark 29:203-244 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 71077: authorized by Martin Aberhan, entered by Sabine Nürnberg on 18.04.2007, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

• focus on ammonites

Show authors, comments, and common names

Cephalopoda
Ammonitida - Acanthohoplitidae	Hypacanthoplites sp., Hypacanthoplites jacobi Hypacanthoplites sp. Spath 1923 ammonite Hypacanthoplites jacobi ammonite
Ammonitida - Leymeriellidae	Leymeriella (Neoleymeriella) regularis, Leymeriella sp. Leymeriella (Neoleymeriella) regularis d'Orbigny 1841 ammonite one specimen + one doubtfully included specimen Leymeriella sp. ammonite
Ammonitida - Cleoniceratidae	Pachygrycia sp., Pachygrycia cf. canadensis, Pachygrycia cf. warreni, Anadesmoceras cf. strangulatum, Arcthoplitinae indet., ? Arcthoplites sp., Arcthoplites sp., Arcthoplites sp., "? Subarcthoplites sp." = Arcthoplites (Subarcthoplites), ? Bellidiscus sp., Bellidiscus cf. subplanus, ? Grycia sp. Pachygrycia sp. Jeletzky 1981 ammonite 2 of Sonneratia kitchini, 1 of Sonneratia sp. in Kennedy et al. Pachygrycia cf. canadensis ammonite Pachygrycia cf. warreni ammonite Anadesmoceras cf. strangulatum Casey 1954 ammonite Arcthoplitinae indet. Lehmann et al. 2013 ammonite ? Arcthoplites sp. ammonite Part of Sonneratia sp., Pseudosonneratia sp. in Kennedy et al. Arcthoplites sp. ammonite Arcthoplites sp. ammonite P. occidentalis pluricostata "? Subarcthoplites sp." = Arcthoplites (Subarcthoplites) Casey 1954 ammonite Part of Cleoniceras sp. in Kennedy et al. ? Bellidiscus sp. Savel'ev 1973 ammonite Bellidiscus cf. subplanus Savel'ev 1973 ammonite ? Grycia sp. Imlay 1961 ammonite
Ammonitida - Schloenbachiidae	? Schloenbachiidae indet. ? Schloenbachiidae indet. Parona and Bonarelli 1897 ammonite
Ammonitida - Desmoceratidae	? Kennicottia sp., ? Leconteites sp. ? Kennicottia sp. Imlay 1959 ammonite ? Leconteites sp. Casey 1954 ammonite Part of Anadesmoceras costatum in Kennedy et al.