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52 relations: Allegany County, Maryland, Altoona, Pennsylvania, Appalachian Mountains, Bedford County, Pennsylvania, Bedrock, Biostratigraphy, Blair County, Pennsylvania, Brachiopod, Calcilutite, Calcisiltite, Chestnut Ridge, Bedford County, Conodont, Corriganville, Maryland, Crinoid, Cumberland Bone Cave, Depositional environment, Devonian, Fulton County, Pennsylvania, Helderberg Group, Highland County, Virginia, Icriodus, Interstate 99, Jersey Shore, Pennsylvania, Journal of Paleontology, Keyser, West Virginia, La Vale, Maryland, Limestone, List of types of limestone, Lochkovian, Lycoming County, Pennsylvania, Maryland, New Paris, Pennsylvania, Old Port Formation, Oulodus, Pendleton County, West Virginia, Pennsylvania, Pridoli epoch, Selinsgrove, Pennsylvania, Silurian, Stromatolite, Stromatoporoidea, Tabulata, Tonoloway Formation, Tyrone, Pennsylvania, U.S. Route 220, U.S. Route 30, U.S. Route 522, Unconformity, United States Geological Survey, Virginia, ..., Warrior Mountain, West Virginia. Expand index (2 more) »
Allegany County, Maryland
Allegany County is located in the northwestern part of the U.S. state of Maryland.
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Altoona, Pennsylvania
Altoona is a city in Blair County, Pennsylvania, United States.
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Appalachian Mountains
The Appalachian Mountains (les Appalaches), often called the Appalachians, are a system of mountains in eastern North America.
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Bedford County, Pennsylvania
Bedford County is a county located in the U.S. state of Pennsylvania.
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Bedrock
In geology, bedrock is the lithified rock that lies under a loose softer material called regolith at the surface of the Earth or other terrestrial planets.
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Biostratigraphy
Biostratigraphy is the branch of stratigraphy which focuses on correlating and assigning relative ages of rock strata by using the fossil assemblages contained within them.
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Blair County, Pennsylvania
Blair County is a county located in the U.S. state of Pennsylvania.
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Brachiopod
Brachiopods, phylum Brachiopoda, are a group of lophotrochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs.
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Calcilutite
Calcilutite (also known as cementstone) is a type of limestone that is composed of predominantly, more than 50 percent, of either clay-size or both silt-size and clay-size detrital (transported) carbonate grains.
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Calcisiltite
Calcisiltite is a type of limestone that is composed predominantly, more than 50 percent, of detrital (transported) silt-size carbonate grains.
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Chestnut Ridge, Bedford County
Chestnut Ridge is an elongate hill trending northeast-southwest in west-central Bedford County, Pennsylvania.
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Conodont
Conodonts (Greek kōnos, "cone", + odont, "tooth") are extinct agnathan chordates resembling eels, classified in the class Conodonta.
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Corriganville, Maryland
Corriganville is an unincorporated community and census-designated place (CDP) in Allegany County, Maryland, United States.
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Crinoid
Crinoids are marine animals that make up the class Crinoidea of the echinoderms (phylum Echinodermata).
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Cumberland Bone Cave
The Cumberland Bone Cave is a fossil-filled cave along the western slope of Wills Mountain on the outskirts of Cumberland, Maryland near Corriganville in Allegany County, Maryland.
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Depositional environment
In geology, depositional environment or sedimentary environment describes the combination of physical, chemical and biological processes associated with the deposition of a particular type of sediment and, therefore, the rock types that will be formed after lithification, if the sediment is preserved in the rock record.
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Devonian
The Devonian is a geologic period and system of the Paleozoic, spanning 60 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya.
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Fulton County, Pennsylvania
Fulton County is a county located in the U.S. state of Pennsylvania.
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Helderberg Group
The Helderberg Group is a geologic group in New York.
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Highland County, Virginia
Highland County is a county located in the Commonwealth of Virginia.
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Icriodus
Icriodus is an extinct conodont genus in the family Gnathodontidae.
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Interstate 99
Interstate 99 (I-99) is an Interstate Highway with two segments: one located in central Pennsylvania, and the other in southern New York in the United States.
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Jersey Shore, Pennsylvania
Jersey Shore is a borough in Lycoming County, Pennsylvania, United States.
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Journal of Paleontology
The Journal of Paleontology is a peer-reviewed scientific journal covering the field of paleontology.
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Keyser, West Virginia
Keyser is a city in and the county seat of Mineral County, West Virginia, United States.
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La Vale, Maryland
La Vale is a census-designated place (CDP) in Allegany County, Maryland, United States.
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Limestone
Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms such as coral, forams and molluscs.
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List of types of limestone
This is a list of types of limestone arranged according to location.
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Lochkovian
The Lochkovian is one of three faunal stages in the Early Devonian epoch.
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Lycoming County, Pennsylvania
Lycoming County is a county located in the U.S. Commonwealth of Pennsylvania.
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Maryland
Maryland is a state in the Mid-Atlantic region of the United States, bordering Virginia, West Virginia, and Washington, D.C. to its south and west; Pennsylvania to its north; and Delaware to its east.
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New Paris, Pennsylvania
New Paris is a borough in Bedford County, Pennsylvania, United States.
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Old Port Formation
The Devonian Old Port Formation is a mapped bedrock unit in Pennsylvania, Maryland, and West Virginia, USA.
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Oulodus
Oulodus is a genus of conodonts in the family Prioniodinidae.
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Pendleton County, West Virginia
Pendleton County is a county located in the U.S. state of West Virginia.
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Pennsylvania
Pennsylvania (Pennsylvania German: Pennsylvaani or Pennsilfaani), officially the Commonwealth of Pennsylvania, is a state located in the northeastern and Mid-Atlantic regions of the United States.
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Pridoli epoch
In the geologic timescale, the Pridoli epoch of the Silurian period of the Paleozoic era of the Phanerozoic eon is comprehended between 423 ± 1.5 and 419.2 ± 2.8 mya (million years ago), approximately.
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Selinsgrove, Pennsylvania
Selinsgrove is the largest borough in Snyder County, Pennsylvania, United States.
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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.
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Stromatolite
Stromatolites or stromatoliths (from Greek στρῶμα strōma "layer, stratum" (GEN στρώματος strōmatos), and λίθος lithos "rock") are layered mounds, columns, and sheet-like sedimentary rocks that were originally formed by the growth of layer upon layer of cyanobacteria, a single-celled photosynthesizing microbe.
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Stromatoporoidea
Stromatoporoidea is a class of aquatic invertebrates common in the fossil record from the Ordovician through the Devonian.
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Tabulata
The tabulate corals, forming the order Tabulata, are an extinct form of coral.
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Tonoloway Formation
The Late Silurian Tonoloway Formation is a mapped limestone bedrock unit in Pennsylvania, Maryland, Virginia and West Virginia.
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Tyrone, Pennsylvania
Tyrone is a borough in Blair County, Pennsylvania, northeast of Altoona, on the Little Juniata River.
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U.S. Route 220
U.S. Route 220 (US 220) is a north–south U.S. Route in the eastern United States.
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U.S. Route 30
U.S. Route 30 (US 30) is an east–west main route of the system of United States Numbered Highways, with the highway traveling across the northern tier of the country.
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U.S. Route 522
U.S. Route 522 (US 522) is a spur route of U.S. Route 22 in the eastern United States.
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Unconformity
An unconformity is a buried erosional or non-depositional surface separating two rock masses or strata of different ages, indicating that sediment deposition was not continuous.
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United States Geological Survey
The United States Geological Survey (USGS, formerly simply Geological Survey) is a scientific agency of the United States government.
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Virginia
Virginia (officially the Commonwealth of Virginia) is a state in the Southeastern and Mid-Atlantic regions of the United States located between the Atlantic Coast and the Appalachian Mountains.
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Warrior Mountain
Warrior Mountain is a ridge located in Allegany County, Maryland.
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West Virginia
West Virginia is a state located in the Appalachian region of the Southern United States.
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References
[1] https://en.wikipedia.org/wiki/Keyser_Formation
