Echinoderms, Zeven Wegen, Gulpen, Lixhe (Cretaceous of Belgium)

Where: Liege, Belgium (50.8° N, 5.7° E: paleocoordinates 41.4° N, 6.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Zeven Wegen Member (Gulpen Formation), Late/Upper Campanian (83.5 - 70.6 Ma)

• member-level stratigraphic resolution

Environment/lithology: offshore; poorly lithified wackestone

• light grey, fine-grained chalks with basal layer of glauconitic zone

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 3: Ophiuroids. Scripta Geologica 21:1-179 [L. Villier/L. Villier/L. Villier]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 32150: authorized by Loic Villier, entered by Loic Villier on 07.06.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Ophiuroidea
 Ophiurida - Ophiolepididae
? Ophiomusium granulosum Roemer 1841 brittle star
many thousands of disc and arm ossicles
 Ophiurida - Ophiuridae
? Stegophiura hagenowi Rasmussen 1950 brittle star
numerous arm fragments
 Ophiurida - Ophiocomidae
? Ophiocoma senonensis Valette 1914 brittle star
few arm fragments and numerous lateral, dorsal and ventral arm plates
Asteroidea
 Paxillosida - Astropectinidae
Coulonia sp.3 de Loriol 1874 sea star
 Valvatida - Goniasteridae
Nymphaster studlandensis3 Schulz and Weitschat 1975 sea star
Nymphaster alseni3 Schulz and Weitschat 1971 sea star
Comptoniaster peetersorum3 Jagt 2000 sea star
Crateraster favosus3 Spencer 1913 sea star
Recurvaster ex gr. radiatus3 Spencer 1913 sea star
Ophryaster oligoplax3 Sladen 1891 sea star
Chomataster acules3 Spencer 1913 sea star
Metopaster praetumidus3 Schulz and Weitschat 1975 sea star
 Velatida - Pterasteridae
Pteraster sp.4 Müller and Troschel 1842 sea star
Echinoidea
 Cidaroida - Cidaridae
Temnocidaris serrata2 pencil urchin
 Holectypoida -
 Holasteroida - Holasteridae
 Spatangoida - Micrasteridae
Micraster stolleyi2 heart urchin
Micraster ex gr. schroederi2 Stolley 1892 heart urchin
 Calycina - Phymosomatidae
"Phymosoma ex gr. granulosum" = Rachiosoma corollare2, Gauthieria mosae2
"Phymosoma ex gr. granulosum" = Rachiosoma corollare2 Leske 1778 sea urchin
Gauthieria mosae2 Geys 1980 sea urchin
Crinoidea
 Bourgueticrinida -
Bourgueticrinus sp.1 Orbigny 1840 Sea lily
 Isocrinida - Cainocrinidae
Nielsenicrinus carinatus1 Roemer 1840 Sea lily