Hyattechinus pentagonus Jackson 1912, a proterocidarid echinoid, Upper Devonian, Pennsylvania photo

Hajar | all galleries >> Palaeogalleries >> Echinozoans through time > Hyattechinus pentagonus Jackson 1912, a proterocidarid echinoid, Upper Devonian, Pennsylvania

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16-May-2021

Hyattechinus pentagonus Jackson 1912, a proterocidarid echinoid, Upper Devonian, Pennsylvania

Two 5 cm echinoids on 11 cm matrix with brachiopod. Riceville Formation, from unit beneath the Cussewago Sandstone, Upper Devonian. Cora Clark Park, opposite the old abandoned Talon Zipper Factory, Meadville, Crawford Co., Pennsylvania, USA.

Sony a99
1/15s f/10.0 at 50.0mm iso400 full exif

other sizes: small medium large original auto

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