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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.
The Petoskey Formation is an arenaceous limestone named for its locale (Petoskey, Michigan), and contains the eponymous Petoskey stones. The Whiskey Creek Formation is a limestone. The Traverse Group formed as a shallow carbonate shelf during the Devonian period (~419 to 359 Ma), when the most recent supercontinent , Pangea , was just beginning ...
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 ...
Patuxent River stone agate (2004) Massachusetts [38] Babingtonite (1971) Roxbury puddingstone (1983) Rhodonite (1979) Michigan [39] Petoskey stone fossilized coral (1965) Chlorastrolite (aka Isle Royale greenstone) (1972) Minnesota [40] Lake Superior agate (1969) Mississippi [41] [42] Petrified wood (1976) Opal (2023) Missouri [43]
Petosegay or Biidassige (Ottawa: Light that is Coming) (c. 1787 – June 15, 1885) was a 19th-century Odawa merchant and fur trader. Both present-day Petoskey, Michigan, Petoskey State Park, and nearby Emmet County park Camp Petosega are named in his honor.
Petoskey may refer to a number of articles relating to the U.S. state of Michigan: Petoskey, Michigan , a city in Emmet County , in the Northern Lower Peninsula . Petosegay , an Odawa chief.
The “Petoskey Stone” is the official stone of the state of Michigan. Hexagonaria percarinata was known by many earlier American paleontologists as Acervularia profunda and Cyathophyllum davidsoni. In the recent past it was usually identified as Prismatophyllum davidsoni." (emphasis added) Clearly this indicates that Prismatophyllum ...
Petoskey (/ p ə ˈ t ɒ s k i / pə-TOSS-kee) is the largest city and the county seat of Emmet County, Michigan, and is the largest settlement within the county. [5] Petoskey has a population of 5,877 at the 2020 census, up from 5,670 at the 2010 census. Petoskey is part of Northern Michigan, and is one of the northernmost cities in Michigan's ...