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List Of Fossiliferous Stratigraphic Units In Michigan
This article contains a list of fossil-bearing stratigraphic units in the state of Michigan, U.S. Sites See also * Paleontology in Michigan References * {{DEFAULTSORT:Fossiliferous stratigraphic units in Michigan Michigan Stratigraphic units A stratigraphic unit is a volume of Rock (geology), rock of identifiable origin and relative age range that is defined by the distinctive and dominant, easily mapped and recognizable petrology, petrographic, lithology, lithologic or paleontology, p ... Stratigraphy of Michigan Michigan geography-related lists United States geology-related lists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratigraphic Units
A stratigraphic unit is a volume of Rock (geology), rock of identifiable origin and relative age range that is defined by the distinctive and dominant, easily mapped and recognizable petrology, petrographic, lithology, lithologic or paleontology, paleontologic features (facies) that characterize it. Units must be ''mappable'' and ''distinct'' from one another, but the contact need not be particularly distinct. For instance, a unit may be defined by terms such as "when the sandstone component exceeds 75%". Lithostratigraphic units Sequences of sedimentary rock, sedimentary and volcanic rocks are subdivided the basis of their shared or associated lithology. Formally identified lithostratigraphic units are structured in a hierarchy of lithostratigraphic rank, higher rank units generally comprising two or more units of lower rank. Going from smaller to larger in rank, the main lithostratigraphic ranks are Bed, Member, Formation, Group and Supergroup. Formal names of lithostratigraph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pointe Aux Chenes Formation
The Pointe aux Chenes Formation is a geologic formation in Michigan, USA. It preserves fossils dating back to the Silurian The Silurian ( ) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million years ago ( Mya), to the beginning of the Devonian Period, Mya. The Silurian is the shortest period of the Paleozo ... period. References * Silurian Michigan Silurian southern paleotemperate deposits {{Michigan-geologic-formation-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trenton Formation
The Trenton Formation is a geologic formation in Canada and Michigan, Ohio, and Indiana in the United States. It preserves fossils dating back to the Ordovician period. See also * List of fossiliferous stratigraphic units in Michigan * Trenton Gas Field * Indiana gas boom * Petroleum industry in Ohio The petroleum industry in Ohio dates from 1859. Ohio continues to produce significant quantities of oil and gas, having produced more than 1 billion barrels of oil and 9 trillion cubic feet of natural gas since 1860. Unconventional resources, pr ... References * Ordovician System of North America Ordovician Michigan Ordovician geology of New York (state) Ordovician geology of Virginia Ordovician southern paleotemperate deposits Middle Ordovician Series {{Michigan-geologic-formation-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thunder Bay Limestone
The Thunder Bay Limestone is a geologic formation in Michigan. It preserves fossils dating back to the Devonian period. Fossil content Vertebrates Conodonts Placoderms Invertebrates Brachiopods Cnidarians Echinoderms Trilobites See also * List of fossiliferous stratigraphic units in Michigan This article contains a list of fossil-bearing stratigraphic units in the state of Michigan, U.S. Sites See also * Paleontology in Michigan References * {{DEFAULTSORT:Fossiliferous stratigraphic units in Michigan Michigan Stratigraphi ... References * Devonian Michigan Middle Devonian Series {{Michigan-geologic-formation-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potter Farm Formation
The Potter Farm Formation is a geologic formation in Michigan. It preserves fossils dating back to the Devonian The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, whe ... period. References * Devonian Michigan Devonian southern paleotemperate deposits {{Michigan-geologic-formation-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petosky Limestone
The Petosky Limestone is a geologic formation in Michigan. It preserves fossils dating back to the Devonian The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, whe ... period. References * Devonian Michigan {{Michigan-geologic-formation-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norway Point Formation
The Norway Point Formation is a geologic formation in Michigan. It preserves fossils dating back to the middle Devonian period. Fossil content Vertebrates Invertebrates See also * List of fossiliferous stratigraphic units in Michigan This article contains a list of fossil-bearing stratigraphic units in the state of Michigan, U.S. Sites See also * Paleontology in Michigan References * {{DEFAULTSORT:Fossiliferous stratigraphic units in Michigan Michigan Stratigraphi ... References * Devonian Michigan Devonian southern paleotemperate deposits {{Michigan-geologic-formation-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravel Point Formation
The Gravel Point Formation is a geologic formation in western Michigan. It preserves fossils dating back to the middle Devonian period and correlates with the Long Lake Limestone and Alpena Limestone. Description The Michigan Basin was a shallow marine shelf during the middle Devonian, located between 30º South and 20º North latitude in central Laurasia. According to stratigraphic and paleontological examination, the sediments of the Gravel Point Formation were deposited in a shallow lagoonal reef environment. Fossil content Vertebrates Acanthodians Bony fish Placoderms Invertebrates Several species of ostracods, an unidentified arthropod 'hook', crinoid columnals and several species of polychaetes and scolecodonts are known from the formation. Brachiopods Bryozoans Cnidarians Sponges Tentaculitans Trilobites Flora Algal colonies are known from the formation. Acritarchs Plants See also * List of fossiliferous stratigraphic units in Michigan This ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpena Formation
The Alpena Formation is a geologic formation in Michigan. It preserves fossils dating back to the Devonian The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, whe ... period. References * Devonian Michigan Devonian southern paleotemperate deposits Middle Devonian Series {{Michigan-geologic-formation-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Four Mile Dam Formation
The Four Mile Dam Formation, also called the Four Mile Dam Limestone, is a Formation (geology), geologic formation in Michigan. It preserves fossils dating back to the middle Devonian Period (geology), period. Fossil content Vertebrates Acanthodians Conodonts Placoderms Invertebrates Brachiopods Corals Gastropods Sponges Trilobites See also * List of fossiliferous stratigraphic units in Michigan References * Devonian Michigan Devonian southern paleotemperate deposits {{Michigan-geologic-formation-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silica Formation
The Silica Formation is a geologic formation in Michigan. It preserves fossils dating back to the Devonian period Period may refer to: Common uses * Era, a length or span of time * Full stop (or period), a punctuation mark Arts, entertainment, and media * Period (music), a concept in musical composition * Periodic sentence (or rhetorical period), a concept .... References * Devonian Michigan Devonian Ohio Devonian southern paleotemperate deposits {{Michigan-geologic-formation-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saginaw Group
The Saginaw Group is a geologic group in Michigan composed of sedimentary rock deposited during the Pennsylvanian Period (circa 323.2 million years ago to 298.9 million years ago. Saginaw group rocks include sandstone, shale, coal, and limestone of fresh water, brackish, and marine origin. Fossils dating back to the Penssylvanian Period ( Late or Upper Carboniferous period) can be found in Saginaw Group formations. See also * List of fossiliferous stratigraphic units in Michigan This article contains a list of fossil-bearing stratigraphic units in the state of Michigan, U.S. Sites See also * Paleontology in Michigan References * {{DEFAULTSORT:Fossiliferous stratigraphic units in Michigan Michigan Stratigraphi ... References * USGS Mineral Resources On-Line Spatial Data. https://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=MIPAs. Retrieved 2 May 2017. * Geologic groups of Michigan {{Michigan-geologic-formation-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
