This is the “Fossil Friday” post #294.  Expect this to be a regular feature of the website.  We will post fossil pictures you send in to esconi.info@gmail.com.  Please include a short description or story.  Check the #FossilFriday Bluesky/Twitter hash tag for contributions from around the world!

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Phenopterum briggsi is a grylloblattidan species of insect from the Stephanian (Late Carboniferous) deposit of Montceau-les-Mines in southeastern France. It was described by Olivier Bethoux in 2010 in the paper “Description of a new grylloblattidan insect from Montceau-les-Mines (Late Carboniferous; France) and definition of Phenopterum Carpenter, 1950″. Have a look at Mazon Monday #294 for more information about Montceau-les-Mines.

This specimen (SOT083713) is the holotype. It resides in the collections of the Museum d’Histoire Naturelle Jacques de La Comble in Autun, France.