Unresolved name

Unresolved name: Animal » Mollusca » Cephalopods » Estonioceratidae » Shumardoceras «

Shumardoceras complanatum

first appearance

Paleobiology Database
lower ordovician epoch
URI: http://resource.geosciml.org/classifier/ics/ischart/LowerOrdovician

Attribution: International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale

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Paleobiology Database

485.4 million years ago

(max)