Crinoid Calyxes

Submitted by: John Topor
Taxon: Atelestocrinus concinnus
Submit date: 2025-07-18
Location (approximate): Arkona, Lambton, ON
Stratigraphy: Arkona Formation
Age: Erian (Middle Devonian)
Submitter notes: Formally Atractocrinus. Occurs in the upper Arkona Formation. It is usually found as just a calyx and rarely with a tegmen. Only one known specimen is preserved with a small amount of arms. The center specimen is 22mm tall. See scale in photo for size.

---

From PaleoBioDB:

---

Search Deep Blue:

Comments: