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Data Sources
Topo
Ecoregions
Public Lands
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BASEMAPS
Default Weather
Temperature
Smoke
...
WEATHER
Black River Group
Geologic Formation
in
WV
,
VA
,
MD
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Lithology
Limestone
Chert
Chert
Other
(1,517 mi²)
Geologic Age
Middle Ordovician (471.4 Ma – 459.3 Ma ago)
(426 mi²)
Late Ordovician (459.3 Ma – 445.3 Ma ago)
(3.6 mi²)
Geologic Unit Label
Obr
(305 mi²)
Otbr
(125 mi²)
Fossils
Batostoma campensis
SPECIES
12
Observations
JAN - DEC
Champlainopora
GENUS
10
Observations
JAN - DEC
Raphistoma stamineum
SPECIES
8
Observations
JAN - DEC
Leperditia
GENUS
8
Observations
JAN - DEC
Colaptomena
GENUS
6
Observations
JAN - DEC
See All
Taxonomy
Geographic Places
307
Geological Feature
46
Geologic Formation
Classified As
Geologic Formation
Black River Group
Black River Group
Black River Group
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