Brachiopods

Brachiopods are marine invertebrates that lived alongside bivalves during the Paleozoic. Today, they have limited diversity, are outcompeted by bivalves, and live primary in cold, deep waters.

Mucrospirifer mucronatus; 4.5cm wide. Collected from upper Wanakah Shale in tributary to Rush Creek by Rich Spencer.

Mediospirifer auduculus; 4.5 cm wide. Collected from the upper Wanakah Shale in tributary to Rush Creek by Rich Spencer.

Athyris spiriferiodes; 34 mm wide. Collected from lower Windom Shale by Brandon Bialy.

Spinatrypa spinosa; 3.4 cm wide. Collected from the lower Windom Shale by Jerry Bastedo.

Rhipidomella sp.; 1.8 cm wide. Collected from the lower Windom Shale by Jerry Bastedo.

Stropheodonta demissa; largest is 8.9 cm wide. Collected by Dorothy Seville from the Wanakah Shale.

Brachiopod with spines; 3.4 cm wide. Collected by Jerry Bastedo from the Windom Shale.

Athyris brachiopod with internal feeding structure: a lophophore. Collected by Bill Regal from the Wanakah Shale.

Brachiopod with coral attached; 5.2 cm wide. Collected by Megan Ferguson from the Windom Shale.

Unknown brachiopod; 3.3 cm wide. Collected by Jonathan Hoag from the Windom Shale.

Stropheodonta; 7.4 cm wide. Collected by Jonathan Hoag from the Windom Shale.

%d bloggers like this: