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Eutaxocrinus
Classification
Phylum:
Echinodermata
Class:
Crinoidea
Order:
Taxocrinida
Superfamily:
Taxocrinacea
Family:
Taxocrinidae
Formal Genus Name and Reference:
Eutaxocrinus SPRINGER, 1906, p. 493
Type Species:
Taxocrinus affinis Müller, 1856, p. 353, SD SPRINGER, 1920, (Code, Art. 67h)
Images
(Click to enlarge in a new window)
Fig. 511, 6, 513, 1a-c. *E. affinis (Müller), M.Dev.(Couvin.), Ger. (Eifel) ; 511,6, plate diagram of cup (radials black, X and higher anals stippled), arms of C and D rays, anal series, and Be and DE interrays (mod. from Springer, 1920); - Fig. 513,1 a-c, ant., post., and dorsal views, X 1.5 (Springer, 1920).--FIG. 513,1d. E. oblongatus (ANGELIN), U.Sil.(Wenlock.), Sweden (Gotl.) ; DE-interradius view of holotype showing biheterotomous branching of arms, X 1 (Springer, 1920). --FIG. 513,le. E. fletc!leri (WORTHEN), L.Miss. (Kinderhook.), USA (Iowa) ; C-ray view of crown, Xl (Springer, 1920)
Synonyms
Geographic Distribution
U.Sil., Eu. (Sweden), L.Dev., Eu. (Ger.), M.Dev., Eu. (Belg.-Ger.)-USA (Iowa-Ill.-N.Y.)-Can. (Ont.), M.Dev. (Couvin.), Ger. (Eifel), U.Dev., USA (N.Y.), L.Miss., USA (Iowa-Mont.)
Age Range
Beginning Stage in Treatise Usage:
U.Sil., Eu.(Sweden); L.Dev., Eu.(Ger.); M.Dev., Eu. (Belg.-Ger.) -USA (Iowa-Ill.-N.Y.) -Can.(Ont.); U. Dev., USA (N.Y.) ; L.Miss., USA (Iowa-Mont.).
Beginning International Stage:
Gorstian
Fraction Up In Beginning Stage:
0
Beginning Date:
426.74
Ending Stage in Treatise Usage:
U.Sil., L.Dev., M.Dev., L.Miss.
Ending International Stage:
Pridoli
Fraction Up In Ending Stage:
100
Ending Date:
419
Description
Very similar to Taxocrinus but with only 2 primibrachs in each ray and with interprimibrachs very few or lacking.
References
Museum or Author Information
Classification
Phylum:
Echinodermata
Class:
Crinoidea
Order:
Taxocrinida
Superfamily:
Taxocrinacea
Family:
Taxocrinidae
Formal Genus Name and Reference:
Eutaxocrinus SPRINGER, 1906, p. 493
Type Species:
Taxocrinus affinis Müller, 1856, p. 353, SD SPRINGER, 1920, (Code, Art. 67h)
Images
(Click to enlarge in a new window)
Fig. 511, 6, 513, 1a-c. *E. affinis (Müller), M.Dev.(Couvin.), Ger. (Eifel) ; 511,6, plate diagram of cup (radials black, X and higher anals stippled), arms of C and D rays, anal series, and Be and DE interrays (mod. from Springer, 1920); - Fig. 513,1 a-c, ant., post., and dorsal views, X 1.5 (Springer, 1920).--FIG. 513,1d. E. oblongatus (ANGELIN), U.Sil.(Wenlock.), Sweden (Gotl.) ; DE-interradius view of holotype showing biheterotomous branching of arms, X 1 (Springer, 1920). --FIG. 513,le. E. fletc!leri (WORTHEN), L.Miss. (Kinderhook.), USA (Iowa) ; C-ray view of crown, Xl (Springer, 1920)
Synonyms
Geographic Distribution
U.Sil., Eu. (Sweden), L.Dev., Eu. (Ger.), M.Dev., Eu. (Belg.-Ger.)-USA (Iowa-Ill.-N.Y.)-Can. (Ont.), M.Dev. (Couvin.), Ger. (Eifel), U.Dev., USA (N.Y.), L.Miss., USA (Iowa-Mont.)
Age Range
Beginning Stage in Treatise Usage:
U.Sil., Eu.(Sweden); L.Dev., Eu.(Ger.); M.Dev., Eu. (Belg.-Ger.) -USA (Iowa-Ill.-N.Y.) -Can.(Ont.); U. Dev., USA (N.Y.) ; L.Miss., USA (Iowa-Mont.).
Beginning International Stage:
Gorstian
Fraction Up In Beginning Stage:
0
Beginning Date:
426.74
Ending Stage in Treatise Usage:
U.Sil., L.Dev., M.Dev., L.Miss.
Ending International Stage:
Pridoli
Fraction Up In Ending Stage:
100
Ending Date:
419
Description
Very similar to Taxocrinus but with only 2 primibrachs in each ray and with interprimibrachs very few or lacking.