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, 112–66 Ma
Fossil of Coeloptychium agaricoides from the Campanian of Nisburg, Westphalia
Scientific classification
Kingdom:
Animalia
Phylum:
Porifera
Class:
Hexactinellida
Subclass:
Hexasterophora
Order:
Lychniscosida
Family:
†Coeloptychidae

Roemer, 1864
Genus:
†Coeloptychium

Goldfuss, 1826
Subgenera
  • Lophoptychium Goldfuss, 1826
  • Myrmecioptychium Scrammer, 1912

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
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gollark: You are, as ever, wrong.
gollark: No, this is bad.
gollark: No, they are not. I will literally Macron.
gollark: I blame apioform #26.

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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