Asani

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Detailed fossil preservation and age
determination of a Late Devonian marine community
in West Virginia Asani D. Brewton and Thomas J.
Rossbach Department of Geological, Environmental
and Marine Sciences Elizabeth City State
University Elizabeth City, NC
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Elkins
http//www.wvgs.wvnet.edu/www/images/geomapbj.jpg
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Elkins
outcrop
US 33
Dailey
West Virginia
US 250
Huttonsville
Randolph County
Map of Randolph County, WV, showing the location
of Elkins and the investigated outcrop
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Elkins Northwest Outcrop
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Strophomenid brachiopod (53.2 mm across)
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Grammysioidea subarcuata 37.1 mm across both
valves
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Palaeoneilo cf. P. filosa (15.0 mm across)
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Palaeoneilo angusta (20.0 mm across)
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Vertumnia reversa (38.5 mm across)
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Vertumnia reversa (detail showing ornament)
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Lyriopecten tricostatus (41.6 mm across)
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Lyriopecten tricostatus (75.6 mm across)
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Pterinopecten suborbicularis (41.1 mm across)
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Pterinopecten suborbicularis (45.7 mm across)
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Pterinopecten suborbicularis (detail showing
ornament)
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Steinhagella sp. (17.8 mm across)
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Schuchertella chemungensis (26.3 mm across)
Spathella typica (24.2 mm across)
Spinatrypa hystrix (29.3 mm across)
Atrypa reticularis (33.1 mm across)
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Cyrtospirifer chemungensis (116.6 mm across)
Leptodesma spinigerum (19.4 mm across)
Rugose coral (14.6 mm long)
Ichnofossils (burrows) (110.0 mm long)
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Orthocerid nautiloids (14.6 mm across)
Cyrtospirifer inermis (33.2 mm across)
Articulated crinoid stems (195 mm across)
Cariniferella tioga (27.7 mm across)
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Current Fossil List for the Elkins Northwest
Section
Phylum Mollusca Class Cephalopoda Subclass
Nautiloidea orthocerid nautiloids Class
Pelecypoda Goniophora sp. Leptodesma
naviforme Leptodesma spinigerum Grammysia
elliptica Grammysioidea cf. G.
subarcuata Vertumnia reversa Ptychodesma
neglectum Ptycopteria chemungensis
Palaeoneilo angusta Palaenueilo cf. P.
filosa Modiomorpha mytiloides Leiopteria
nitidia Mytilarca chemungensis Spathella
typica Lyriopecten tricostatus
Pterinopecten suborbicularis
Phylum Brachiopoda Class Articulata Order
Spiriferida Cyrtospirifer inermis
Cyrtospirifer chemungensis Cyrtospirifer
vandermarkensis Atrypa reticularis
Spinatrypa hystrix Ambocoelia
umbonata Tylothyrsis mesacostalis Order
Rhynchonellida Rhynchonella sp.
Leiorhynchus mesacostale Camarotoechia sp.
Order Strophomenida Douvillina cayuta
Douvillina graciliora Nervostrophia
nervosa Schuchertella
chemungensis Steinhagella sp. Order
Orthida Cariniferella tioga
Other Pteridichnites biseriatus Tentaculites
sp. Rugose corals Large burrows Crinoid stems
and columnals
Frasnian stage index fossils marked in red
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Upper Devonian Stratigraphy of West Virginia
Age (Ma)
Period
Epoch
Stage
360 --
Famennian
UPPER
Frasnian
370 --
Givetian
380 --
Eifelian
MIDDLE
D E V O N I A N
390 --
Emsian
Siegenian
LOWER
400 --
Gedinnian
410 --
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Elkins
Acadian highlands
Kaskaskia Sea
http//jan.ucc.nau.edu/rcb7/370NAt.jpg
Late Devonian Paleogeography of North America
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Elkins
http//images.pennwellnet.com/ogj/images/ogj2/9552
jfpy01.gif
The Appalachian Basin
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