Echinoderms, Gronsveld, Maastrictht, Eben Amael 2 (Cretaceous to of Belgium)

Where: Liege, Belgium (50.8° N, 5.7° E: paleocoordinates 43.4° N, 4.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: tegulatus/junior zone, Valkenburg, Gronsveld Member (Maastricht Formation), Late/Upper Maastrichtian to Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; poorly lithified packstone

• Poorly indurated, white-yellowish to yellowish-grey, fine- to coarse-grained chalks

Size classes: macrofossils, mesofossils

Preservation: original calcite

Collection methods: bulk, surface (float), surface (in situ), sieve,

Primary reference: J. W. M. Jagt. 2000. Late Cretaceous-Early Paleocene echinoderms and the K/T boundary in the southeast Netherlands and the northeast Belgium. - part 4: Echinoids. Scripta Geologica 21:181-375 [L. Villier/L. Villier/L. Villier]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 32175: authorized by Loic Villier, entered by Loic Villier on 09.06.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Echinoidea
 Calycina - Phymosomatidae
Gauthieria pseudoradiata Schluter 1883 sea urchin
 Cassiduloida - Cassidulidae
Nucleopygus scrobiculatus Goldufss 1826 sea urchin
 Irregularia - Nucleolitidae
 Holasteroida - Holasteridae
 Spatangoida -
Leymeriaster eluvialis van der Ham 1995 heart urchin
 Stomopneustoida - Stomechinidae
Ophiuroidea
 Ophiurida - Ophiosphalmidae
? Ophiomusium granulosum Roemer 1841 brittle star
many thousands of disc and arm ossicles
Crinoidea
 Comatulida - Pterocomidae
Placometra ex gr. laticirra Carpenter 1880 Feather star
 Comatulida - Bourgueticrinidae
Dunnicrinus aequalis D'Orbigny 1841 Feather star