Heteroschisma canadensis

Submitted by: David Thompson
Taxon: Heteroschisma canadensis
Submit date: 2010-11-26
Location (approximate): Arkona, Lambton, ON
Stratigraphy: Hungry Hollow Formation
Age: Erian (Middle Devonian)
Submitter notes: Some examples of this blastoid from the Hungry Hollow member of the Arkona area. The largest is 11.2 mm long. Another shows ventral view with ambulacra. Not all of these were collected at the same time, some are years apart.

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