Pugnoides pleurodon (Phillips)
Lower Carboniferous, Carboniferous Limestone, Asbian
Cashel Hill, Belcoo, Co. Fermanagh
largest 18 mm across
Pugnoides is a fairly typical, coarsely-ribbed, rhynchonellid, one of the most distinctive brachiopod groups. Rhynchonellids first appeared in the early Ordovician (more than 470 million years ago) and are still one of the two dominant groups alive today, the other group being the smooth-shelled terebratulids.
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