Submitted by: Mike Topor
Taxon: Microcyclus thedfordensis, Eliasopora stellatum, Aulopora sp., Eldredgeops sp.
Submit date: 2007-02-18
Location (approximate): Arkona, Lambton, ON
Stratigraphy: Arkona Formation
Age: Erian (Middle Devonian)
Submitter notes: Top row: Contrasts a very large specimen (20mm) with a very small one (6mm) and 2 average size (12mm) specimens showing top and bottom views. Middle row: First specimen has turned-up margin; the second shows rejuvenation; the third is twins (two growing together); The fourth is encrusted with the Bryozoan, Eliasopora. The fifth is encrusted with Aulopora. Third row: Shows various attachments; #'s 1&2 are attached to trilobite fragments. #3 is attached to a tiny chonetid brachiopod. #4 is attached to a small crinoid columnal, and #5 is attached to a Pelecypod fragment.