Aglaocrinus

Aglaocrinus is an extinct species of crinoids in the Cladia order.[5][6][7][8][9] It has been proposed that it was a blind, stationary (attached) suspension feeder the hard parts of which were composed of magnesium calcite.[10][11] It has been discovered in 3 locations in North America.[12]

Not to be confused with Aaglacrinus, another extinct genus in the Crinoidea class.

Aglaocrinus
Temporal range: 312.0โ€“299.0 Ma Carboniferous[1][2]
Scientific classification
Kingdom:
Animalia
Phylum:
Echinodermata
Class:
Crinoidea
Order:
Cladida
Family:
Dendrocrinidae
Genus:
Aglaocrinus

Strimple, 1961[3][4]
Species

See text

Species

There are currently 12 species in this genus, consisting of:

Further reading
  • Late Desmoinesian crinoid faunule from Oklahoma. Bulletin of the Oklahoma Geological Survey, 93 1961: 1-189. [Zoological Record Volume 98]
gollark: You know you can just *throw away* things which cause horrible health problems if used?
gollark: I see. This definitely seems broader than common definitions in use then.
gollark: And I don't think it'll be shifted significantly by being able to deal with that kind of rare event much better as much as... blind luck, happening to have had relevant opportunities, social skills and intelligence.
gollark: Evolutionary fitness is also not the same as physical fitness.
gollark: That's plausible I guess, but it's possible that many of those could have been avoided (and your definition would count this as "fitness", even). I'm pretty sure it's still less common than, well, other day to day bad things.

References
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