Coeloptychium

Coeloptychium is an extinct genus of lychniscosidan hexasterophoran sea sponge which has often been used as an index fossil.[1] Its remains have been found in Cretaceous sediments in Germany, Belgium, France and the UK.[2] Coeloptyhcium is best preserved in Campanian sediments in Germany. The type species, C. agaricoides, was named in 1826.

Coeloptychium
Temporal range: Cretaceous,
Fossil of Coeloptychium agaricoides from the Campanian of Misburg, Lower Saxony
Scientific classification
Kingdom:
Animalia
Phylum:
Porifera
Class:
Hexactinellida
Subclass:
Hexasterophora
Order:
Lychniscosida
Family:
†Coeloptychidae

Roemer, 1864
Genus:
†Coeloptychium

Goldfuss, 1826
Subgenera

Species
  • Coeloptychium agaricoides Goldfuss, 1826
  • Coeloptychium deciminum Roemer, 1841
  • Coeloptychium incisum Roemer, 1841
  • Coeloptychium princeps Roemer, 1861
  • Coeloptychium rude Zittel, 1876
  • Coeloptychium seebachi Zittel, 1876
  • Coeloptychium subagaricoides Sinov, 1871
  • Coeloptychium sulciferum Roemer, 1841

References
  1. R. M. Finks, R. E. H. Reid, and J. K. Rigby. 2004. Porifera (Demospongea, Hexactinellida, Heteractinida, Calcarea). Treatise on Invertebrate Paleontology Part E, Revised E(3):1-872 [W. Kiessling/W. Kiessling/W. Kiessling]
  2. A. Schrammen. 1912. Die Kieselspongien der oberen Kreide von Nordwestdeutschland, Teil 2 Triaxonia (Hexactinellida) [Upper Cretaceous sponges from north-western Germany, part 2 Triaxonia (Hexactinellida)]. Palaeontographica, Supplement 5:176-385 [W. Kiessling/U. Merkel/U. Merkel]
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