アメリカ自然史博物館のインスタグラム(amnh) - 11月23日 01時03分

Celebrate #TrilobiteTuesday with Ectinaspis homanolotoides, a spectacular trilobite from Ontario. The various 460 million year old Ordovician outcrops of Ontario, Canada-- which include such formations as the Chazy, Bobcaygeon and Verulam-- rank high on any presumptive list of the World's Leading Trilobite Sites. During over a century of exploration and excavation by both professionals from the nearby Royal Ontario Museum and legions of weekend warriors, these varied locations have provided the trilobite community with some of the most impressive, fascinating and scientifically significant “bugs” of all-time.

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