Furcaster — Furcaster
Furcaster H. Zell, Wikimedia Commons, CC BY SA 3.0

Fossil

Furcaster

Hunsrück brittle star

Furcaster palaeozoicus is the golden pyritised brittle star of the Hunsrück Slate, often preserved in groups on black slate and the most familiar Bundenbach fossil. Slabs with several Furcaster are affordable classics; painted or 'improved' arms occur, and pyrite decay threatens all of them. Keep them below 45 % relative humidity.

PhylumEchinodermata
ClassOphiuroidea
FamilyFurcasteridae
GroupFossil
Rank (PBDB)genus· Paleobiology Database
AuthorStürtz 1886· Paleobiology Database
Classification (PBDB)Echinodermata › Ophiuroidea › Oegophiurida › Furcasteridae· Paleobiology Database
Range (PBDB)439–323 Ma· Paleobiology Database
PBDB occurrences42· Paleobiology Database

Elsewhere

Cite this article

Stratum Study. "Furcaster" (Taxon). Stratum Study pack 2026.09, as of 2026-09-19. https://stratum.black/study/taxa/furcaster. Accessed 2026-09-20.

@misc{stratum-furcaster,
  title        = {Furcaster},
  author       = {{Stratum Study}},
  howpublished = {\url{https://stratum.black/study/taxa/furcaster}},
  year         = {2026},
  note         = {Taxon article, Stratum Study pack 2026.09, as of 2026-09-19; sources: stratum, pbdb, wikidata, commons. Accessed 2026-09-20.}
}

Citations carry the pack version and the article's as-of date so they resolve to the same text later. The facts themselves belong to the sources listed below; cite those for the science.