Externí odkaz - taxony

J. C. Brower (1994):
Camerate crinoids from the Middle Ordovician (Galena Group, Dunleith Formation) of northern Iowa and southern Minnesota

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Cleiocrinus regius Billings, 1857 ^†
Cotylacrinna sandra Brower, 1994 ^†
Cotylacrinna Brower, 1994 ^†
Euptychocrinus skopaios Brower, 1994 ^†
Euptychocrinus Brower, 1994 ^†
Abludoglyptocrinus charltoni (Kolata, 1975) ^†
Eopatelliocrinus ornatus (Billings, 1857) ^†
Cotylacrinna desideratus (Billings, 1885) ^†
Euptychocrinus longibrachialis (Brower, 1975) ^†
Euptychocrinus fimbriatus (Shumard, 1885) ^†

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