Petroxestes | |
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Petroxestes pera borings in an Upper Ordovician hardground (Waynesville Formation, southern Ohio). | |
Trace fossil classification | |
Ichnofamily: | † Rogerellidae |
Ichnogenus: | †
Petroxestes Wilson & Palmer, 1988 |
Type ichnospecies | |
Petroxestes pera Wilson & Palmer, 1988
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Ichnospecies [1] | |
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Petroxestes is a shallow, elongate boring (a type of trace fossil) originally found excavated in carbonate skeletons and hardgrounds of the Upper Ordovician of North America. [2] [3] These Ordovician borings were likely made by the mytilacean bivalve Corallidomus as it ground a shallow groove in the substrate to maintain its feeding position. [4] They are thus the earliest known bivalve borings. [5] Petroxestes was later described from the Lower Silurian of Anticosti Island (Canada). [6] and the Miocene of the Caribbean. [7]
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