Search results
Results from the WOW.Com Content Network
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.
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 ...
The Traverse Group is a geologic group in Michigan, Indiana and Ohio comprising middle Devonian limestones with calcareous shale components. [1] [2] Its marine fossils notably include Michigan's state stone, the Petoskey stone (the extinct coral Hexagonaria percarinata), among other corals and records of ancient marine life.
Fossil of the Devonian colonial rugose coral Hexagonaria, also known as a Petoskey stone †Hexagonaria †Hexagonaria pericarinata †Hindia †Holopea †Icriodus †Isotelus †Isotelus gigas †Lepidodendron †Lepidodendron aculeatum †Lepidodendron Brittsii †Lepidodendron dichotomum †Lepidodendron lanceolatum †Lepidodendron ...
Fossil of the Devonian colonial rugose coral Hexagonaria, also known as a Petoskey stone †Hexagonaria †Hindeodus †Holopea †Homagnostus †Howittia †Icriodus †Icriodus angustoides †Icriodus taimyricus †Idiognathodus †Isograptus †Isograptus forcipiformis †Isograptus manubriatus – or unidentified comparable form
Though not really a castle and not really made of coral, world-famous structure built by one man is considered an engineering marvel
Fossil of the Devonian colonial rugose coral Hexagonaria, also known as a Petoskey stone †Hexagonaria †Hexagonaria bella †Hexagonaria cincta †Hexagonaria curta †Hexagonaria ovoidea †Hexagonaria partita †Hexagonaria ponderosa †Hexagonaria prisma †Hexameroceras †Hindia †Holopea †Hyolithes †Icriodus †Illaenus
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!