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A p p e a r a n c e
F r o m W i k i p e d i a , t h e f r e e e n c y c l o p e d i a
Description
[ edit ]
The Warrior Formation is described by Berg and others as gray, thin- to medium-bedded, fossiliferous, cyclic limestone bearing stromatolites , interbedded with shale, siltstone, and sandstone.[5]
Fossils
[ edit ]
Cryptozoon undulatum from Bakers Summit
Trilobites ,[1] including Crepicephalus , Cedaria , Llanoaspidella ,[3] and Blountia kindlei Resser, Coosella brevis Resser, Kingstonia ara (Walcott), K. kindlei Resser, and other Kingstonia species, Menomonia avitas (Walcott), Blountia , Modocia , Lonchocephalus , Genevievella , Pemphigaspis .[6]
Brachiopods [3]
Cryptozoon , a type of trace fossil[1] [6]
Stromatolites [5]
Notable Exposures
[ edit ]
Age
[ edit ]
Relative age dating places the Warrior Formation in the middle to late Cambrian .
References
[ edit ]
^ a b c d e Butts, Charles, 1918, Geologic section of Blair and Huntingdon Counties, central Pennsylvania: American Journal of Science , 4th series, v. 46, p. 523-537.
^ Wilson, J.L., 1952, Upper Cambrian stratigraphy in the central Appalachians: Geological Society of America Bulletin, v. 63, no. 3, p. 275-322.
^ a b c d Tasch, Paul, 1951, Fauna and Paleoecology of the Upper Cambrian Warrior Formation of Central Pennsylvania, Journal of Paleontology, Vol. 25, No. 3, pp. 275-306, pls. 44-47, May 1951 abstract
^ USGS Mineral Resources On-Line Spatial Data , retrieved 4 Mar. 2011
^ a b Berg, T.M. (compiler), 1980, Geologic map of Pennsylvania: Pennsylvania Geological Survey State Map, 4th series, 1, 1 sheet, scale 1:250,000 [1 ]
^ a b Charles Butts, 1945. Hollidaysburg-Huntingdon folio , Pennsylvania, Folios of the Geologic Atlas 227. United States Geological Survey.
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e
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=Warrior_Formation&oldid=1222285502 "
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● T h i s p a g e w a s l a s t e d i t e d o n 5 M a y 2 0 2 4 , a t 0 2 : 0 8 ( U T C ) .
● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n .
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