Protichnites
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Protichnites is an ichnogenus of trace fossil consisting of the imprints made by the walking activity of certain arthropods. It consists of two rows of tracks and a medial furrow between the two rows.
Protichnites
Cambrian
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The Cambrian is the first geological period of the Paleozoic Era and the Phanerozoic Eon. The Cambrian lasted 51.95 million years from the end of the preceding Ediacaran period 538.8 Ma to the beginni
Protichnites
…Owen, the noted British paleontologist and anatomist who coined the term "Dinosauria", based Protichnites on trackways that were shipped to him from the Cambrian Potsdam Sandstone of Quebec. He was correct in recognizing that these were the oldest known footprints on land, having been produced in intertidal and…
Ediacaran–Cambrian boundary section at Fortune Head, Newfoundland, GSSP
Diorama of the Burgess Shale Biota
Archeocyathids from the Poleta formation in the Death Valley area
Stromatolites of the Pika Formation (Middle Cambrian) near Helen Lake, Banff National Park, Canada