a, A complete specimen with antennae and limbs (USNM PAL 65510). b, Limbs of GSC 34695a showing various degrees of flexure and extension. The Burgess Shale in British Columbia is renowned for its ...
A Triarthrus eatoni trilobite, order Ptychopariida, family Olenidae, 11 mm long, found in the Frankfort Shale, New York, USA, from the Upper Ordovician. Credit: Dwergenpaartje / Wikimedia / CC BY-SA 3 ...
A new study finds that a trilobite species with exceptionally well-preserved fossils from upstate New York has an additional set of legs underneath its head. The research, led by the American Museum ...
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