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2.1" Ordovician Marine Fossil Association - Wisconsin
This is a 2.1" wide association of Clathrospira subconica, a species of Ordovician-aged gastropod, and a Beloitoceras cephalopod fragment. This association is part of an old collection from the Grand Detour Formation in Rock County, Wisconsin.
Gastropods, or snails, have been around since the Late Cambrian period. The class Gastropoda contains a vast total of named species, second only to the insects in overall number. There are 611 known families of gastropods, of which 202 families are extinct and appear only in the fossil record.
SPECIES
Clathrospira subconica & Beloitoceras sp.
AGE
LOCATION
Rock County, Wisconsin
FORMATION
Grand Detour Formation
SIZE
Entire specimen: 2.1 x 1.2"
CATEGORY
ITEM
#257225
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