Saturday, September 29, 2012

Delthyris sculptilis from Hungry Hollow

Another new species of Brachiopod for my collection from Arkona is Delthyris sculptilis. Delthyris is a common enough species within the Devonian but is uncommon in the Hungry Hollow member of the Widder formation. It has a typical Spirifer shape to the shell but it's the distinctive decoration that gives it away.

Brachial valve


Pedicle valve



A little searching on the internet yielded this article which states that Delthyris sculptilis should be reclassified as Megakozlowskiella sculptilis. Maybe the checklist that I'm using to ID fossils from Arkona needs to be updated?

I've found Delthyris sulcata in the Irondequoit limestone near Lockport, New York.

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