Echinoderms, Nekum, Maastricht, Eben Amael 2 (Cretaceous 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: Nekum Member (Maastricht Formation), Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• member-level stratigraphic resolution

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

• White-yellowish, coarse-grained, homogemeous chalks. Local coarse-grained fossil hash lenses and beds

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 32157: authorized by Loic Villier, entered by Loic Villier on 07.06.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Echinoidea
 Cidaroida - Cidaridae
Temnocidaris sp.2 Cotteau 1863 pencil urchin
 Arbacioida - Arbaciidae
Codiopsis disculus2 sea urchin
 Stomopneustoida - Stomechinidae
 Salenioida - Saleniidae
"Salenia maestrichtensis" = Salenidia maestrichtensis2, "Salenia bonissenti" = Salenidia bonissenti2, Salenia ex gr. nutrix2
"Salenia maestrichtensis" = Salenidia maestrichtensis2 Schluter 1892 sea urchin
"Salenia bonissenti" = Salenidia bonissenti2 Cotteau 1866 sea urchin
Salenia ex gr. nutrix2 Peron and Gauthier 1881 sea urchin
 Euechinoidea - Orthopsidae
Orthopsis miliaris2 d'Archiac 1835 sea urchin
 Spatangoida - Hemiasteridae
Hemiaster koninckanus2 heart urchin
 Spatangoida -
Leymeriaster eluvialis2 van der Ham 1995 heart urchin
 Holasteroida - Holasteridae
Hemipneustes striatoradiatus2 Leske 1778 sea urchin
Cardiaster granulosus2 Goldfuss 1826 sea urchin
 Irregularia - Nucleolitidae
 Clypeasteroida - Faujasiidae
Faujasia apicalis2 Desor 1847 sand dollar
 Cassiduloida - Cassidulidae
Rhynchopygus marmini2 Agassiz 1847 sea urchin
 Cassiduloida -
Procassidulus lapiscancri2 Leske 1778 sea urchin
Ophiuroidea
 Euryalida - Euryalidae
? Trichaster ornatus Rasmussen 1950 basket star
numerous vertebrae
 Ophiurida - Ophiuridae
Felderophiura vanderhami Jagt 1991 brittle star
numerous discs, arms and thousands of dissociated ossicles
Asteroidea
 Paxillosida - Astropectinidae
Astropectinidae indet.3 Gray 1840 sea star
Aldebarania sp.3 Blake and Sturgeon 1995 sea star
 Valvatida - Sphaerasteridae
Valettaster ex gr. ocellatus3 Forbes 1848 sea star
 Valvatida - Goniasteridae
Goniasteridae indet.3 Forbes 1841 sea star
4 species of indeterminated goniasterids
Chomataster acules3 Spencer 1913 sea star
Crinoidea
 Comatulida - Jaekelometridae
Jaekelometra ex gr. belgica1 Jaekel 1902 Feather star
Jaekelometra ex gr. concava1 Schlüter 1878 Feather star
 Comatulida - Notocrinidae
Semiometra saskiae1 Jagt 1999 Feather star
Semiometra lenticularis1 Rasmussen 1961 Feather star
 Comatulida - Conometridae
Amphorometra ex gr. conoidea1 Goldfuss 1839 Feather star