Fossil Brachiopods From Ordovician Canyon

Here is a slab of shaly limestone from the Middle Ordovician Antelope Valley Limestone, Ordovician Canyon, Nevada, which bears several silicified pedicle valves of the brachiopod Plectorthis cf. P. perplexus (Ross); all of the specimens are roughly 10mm across.

Return To: Ordovician Fossils In The Toquima Range, Nevada