A LARGE pyrite replaced Mediospirifer audaculus brachiopod. Both valves present - complete specimens. More than 1-1/4"+ thick and heavy! This is a Devonian (395 mya) brachiopod from the Silica Shale Fm., Sylvania, Ohio. The other big Silica Fm. brachiopod. A fantatic display specimen!
Y003 SIZE: 1-3/4" (width)
Note - 15+ new Brachiopods added in November 2017. Link to Brachipods.