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This list of the Paleozoic life of Michigan contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Michigan and are between 538.8 and 252.17 million years of age.
These swamps were full of ferns and scale trees. [2] Xenacanth fossils are known from such deposits. [6] Plant fossils are common from Michigan rocks of Pennsylvanian age. The flora of Michigan back then included club moss trees, ferns, and horsetails. [5] Contemporary vegetation was preserved in the Midland and Saginaw regions. [7]
A Petoskey stone is a rock and a fossil, often pebble-shaped, that is composed of a fossilized rugose coral, Hexagonaria percarinata. [1] Such stones were formed as a result of glaciation, in which sheets of ice plucked stones from the bedrock, grinding off their rough edges and depositing them in the northwestern (and some in the northeastern) portion of Michigan's lower peninsula.
Fossil of the Carboniferous horsetail relative Annularia †Annularia †Annularia asteris †Annularia sphenophylloides †Athyris †Atrypa †Atrypa traversensis †Aulopora †Aulopora microbuccinata †Bellerophon †Calamites †Calamites carinatus †Calamites cistii †Calamites ramosus †Calamites schutzeiformis †Calamites suckowii
Corals were the most common animals found in Devonian Michigan. There were three types of coral found in Devonian Michigan: branching, colony, and solitary corals. These corals are found as fossils in almost every fossil site in Michigan. This is because the Devonian was a time of great reefs, which covered most of the world's oceans.
A survey of Lake Michigan located at least 40 large craters on the lakebed. Initial studies highlighted the spots as unknown shapes, but additional research revealed the craters are filled with ...
A fossil fern in the Hermit Shale from Grand Canyon National Park. You may spot some fossils like this around Cedar Ridge in the canyon.
Fossils of this genus form Petoskey stones, the state stone of Michigan. [1] They can be seen and found in most Midwestern U.S. states. Hexagonaria is a common constituent of the coral reefs exposed in Devonian Fossil Gorge below the Coralville Lake spillway [2] and in many exposures of the Coralville Formation in the vicinity of Coralville ...