Exceptional Cambrian Diplichnites Arthropod Trackway

Diplichnites sp. Ichnofossil

Geological Time: Cambrian

Size: (25.4 mm = 1 inch): 22.5 by 11 by 1+ inches

Fossil Site: Krukowski Quarry, Elk Mound Group, Mount Simon Sandstone, Mosinee, Wisconsin

Code: DD104

Price: $375.00 - sold

DiplichnitesComing from the Cambrian-age Krukowski quarry in central Wisconsin, this ichnofossil called Diplichnites may well represent some of the earliest animal footprints on land. When these footprints were made, what is now Wisconsin was some 10 degrees below the equator, and paleontologists believe the site was once a beach of a shallow marine environment.

No shelly animals are found in the Krukowski quarry, only trackways (Ichnofossils) and body impressions (such as in the case of the madusae jellyfish (Cnidarians). Besides a few mysterious trackways that cannot be named, one finds Diplichnites, Protichnites and Climactichnites. Together, this quarry tells a story just now being researched by paleontologists - hopefully, the result will be some shedding of more light on when and how life ventured from marine to land environment.

Popular conjecture is that Diplichnites is the trace of a arthropod, such as wandering Myriapoda, which brings to mind an ancient centipede (Chilopoda). If so, this specimen contains a myriad of Myriapoda footprints, mostly running lengthwise.

This specimen is among the best Diplichnites fossils that come from the quarry. The tracks, in epirelief are pronounced, and comprise multiple straight and curving tracks with conspicuous foot-drag and/or body appendage tracks. Also note the wide and deep shoreland sand ripples that are prototypical of many of the Krukowski quarry Ichnofossils plates.

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