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Cravenoceras

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Journal Article
Published: 01 November 2002
Proceedings of the Yorkshire Geological Society (2002) 54 (2): 111–119.
...D. Korn; J. W. Tilsley SUMMARY The Cravenoceras leion Marine Band at Backdale Mine has yielded a stratigraphically important ammonoid fauna consisting of the species Cravenoceras leion Bisat 1930 , Edmooroceras medusa ( Yates 1961 ) and Girtyoceras sp. C. leion, in particular, is represented...
Journal Article
Published: 01 July 1995
Journal of Paleontology (1995) 69 (4): 703–707.
Journal Article
Published: 01 September 1983
Journal of Paleontology (1983) 57 (5): 971–991.
.... These fossils are in five collections made on a small hill at the northern margin of the White Pine Range in White Pine County, Nevada. Cravenoceras hesperium Miller and Furnish, which characterizes the ammonoid zone of the same name, occurs with the gastropods. The pebbly limestone was deposited in relatively...
Series: GSA Special Papers
Published: 01 January 1973
DOI: 10.1130/SPE145-p1
... The Imo Formation of northeastern Arkansas and the Rhoda Creek Formation of south-central Oklahoma contain rich ammonoid assemblages of approximately equivalent age. The Imo ammonoids include Anthracoceras discus Freeh, 1899; Cravenoceras friscoense (Miller and Owen, 1944); Cravenoceras...
Image
Correlation of the stratigraphical sections. For explanation of symbols and...
Published: 01 November 2005
Fig. 3. Correlation of the stratigraphical sections. For explanation of symbols and facies see Figure 5 . L. nodosa, Lochriea nodosa; C. okense, Calcifolium okense ; Cr. leion, Cravenoceras leion.
Journal Article
Published: 01 September 2008
Journal of Paleontology (2008) 82 (5): 906–923.
... to the Pendleian is reinforced by the first occurrence of the ammonoid Emstites ( Cravenoceras ), although it occurs 1 m below the Top Hosie Limestone. Pendleian foraminiferal assemblages from northern England, its geographically closest equivalent, are similar but not well enough known for a detailed comparison...
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Journal Article
Journal: AAPG Bulletin
Published: 01 December 1970
AAPG Bulletin (1970) 54 (12): 2470.
... area, the Tournaisian is composed of argillaceous-siliceous rocks. The Viséan can be subdivided into 3 zones: (1) Palaeospiroplectammina diversa , (2) Eoendothyranopsis armakiensis , and (3) Archaediscus-Cravenoceras-Homoceras ; these can be correlated approximately with the Malinov, Yasnaya-Polyana...
Series: GSA Memoirs
Published: 01 January 1968
DOI: 10.1130/MEM110-p157
... County, Nevada, a thin limestone in the Eleana containing the ammonoids Cravenoceras hesperium Miller and Furnish and C. merriami Youngquist of late Chester age is separated by approximately 100 ft of shale and minor quartzite from platy limestone of the Tippipah, containing Diaboloceras aff. D...
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Correlation of marine limestones (in grey) and marine bands (symbolized wit...
Published: 22 May 2014
Fig. 3. Correlation of marine limestones (in grey) and marine bands (symbolized with ‘M’ where present as marine shales) in northern England. Adapted from Brand (2011) and Waters et al . (2011 a, b ). Lst, Limestone; MB, Marine Band; SB, Shell Bed. B , Bilinguites ; C , Cravenoceras
Journal Article
Journal: AAPG Bulletin
Published: 01 February 1956
AAPG Bulletin (1956) 40 (2): 427–428.
... on Oklahoma Highway No. 2 south of Wilburton. The logical conclusion is that the Jackfork sandstone must be Mississippian or older. This correlation of the lower part of the Johns Valley with the Mississippi Caney is based on the presence of the cephalopods Cravenoceras choctawensis and Actinoceras...
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A)  Location of the study area in England and simplified geological map of ...
Published: 01 September 2009
Eumorphoceras . Distinctive thick-shelled goniatite (ammonoid) horizons in italics “C” = Cravenoceras , “T” = Tumulites .
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Limestone names and equivalents in common use in northern England.  A .,  A...
Published: 01 May 2011
Fig. 3 Limestone names and equivalents in common use in northern England. A ., Anthracoceras ; Al, Allandale; An, Alston; C ., Cravenoceras ; Ca ., Cancelloceras ; Cl ., Cluthoceras ; Ct ., Cravenoceratoides ; Cu, Cumbria; E ., Eumorphoceras ; Ed, Eden Valley; G ., Gastrioceras
Journal Article
Published: 01 September 2009
Journal of Sedimentary Research (2009) 79 (9): 643–651.
... Eumorphoceras . Distinctive thick-shelled goniatite (ammonoid) horizons in italics “C” = Cravenoceras , “T” = Tumulites . ...
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Journal Article
Journal: AAPG Bulletin
Published: 01 April 1964
AAPG Bulletin (1964) 48 (4): 487–495.
... of the fauna are the cephalopods, Cravenoceras merriami, C. hesperium, C. cf. C. friscoense, Eumorphoceras bisulcatum , and Dimorphoceras . At Kane Springs Wash, 30 miles northeast of Arrow Canyon, Duley (1957) has shown that Cravenoceras merriami occurs above C. hesperium, Rayonnoceras...
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Journal Article
Published: 02 May 2019
Petroleum Geoscience (2020) 26 (2): 325–345.
... Formation, is taken at the base of the Cravenoceras leion Marine Band ( Fig. 2 ). In the East Midlands, the top of the formation coincides with the base of the Millstone Grit Group, locally represented by the turbidite succession of the Mam Tor Sandstones or fluvial sandstones of the Kinderscout Grit...
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(A) Chart illustrating Namurian chronostratigraphy, lithostratigraphy, envi...
Published: 01 May 2008
this study. Goniatite zone abbreviations translate as follows ( Hodson and Lewarne, 1961 ): P = Goniatite sp., E = Eumorphoceras , H = Homoceras , R = Reticuloceras , N = Nuculoceras , and C = Cravenoceras . Correlation of system, subsystems, series, and stages is from Heckel and Clayton (2006
Journal Article
Published: 05 February 2021
Journal of the Geological Society (2021) 178 (3): jgs2020-170.
... with that of the Serpukhovian, because Johnson et al. (1962) recorded the ammonoid Cravenoceras leion in mudstones above the Great Limestone, but they selected this limestone unit as the base of the Namurian due to its forming a regional mappable horizon. However, this difference is negligible, and the correlation...
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Journal Article
Published: 22 May 2014
Proceedings of the Yorkshire Geological Society (2014) 60 (1): 29–51.
...Fig. 3. Correlation of marine limestones (in grey) and marine bands (symbolized with ‘M’ where present as marine shales) in northern England. Adapted from Brand (2011) and Waters et al . (2011 a, b ). Lst, Limestone; MB, Marine Band; SB, Shell Bed. B , Bilinguites ; C , Cravenoceras...
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Journal Article
Published: 01 January 2004
Micropaleontology (2004) 50 (1): 89–103.
... for assemblages characterized by the presence of Cingulizonates cf. capistratus with Crassispora aculeata, but without those other taxa, in the lower part of the CN Biozone. The range top of C. aculeata occurs in strata above the Great Limestone in northern England. This horizon lies above the Cravenoceras leion...
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Journal Article
Published: 01 November 2005
Proceedings of the Yorkshire Geological Society (2005) 55 (4): 287–300.
...Fig. 3. Correlation of the stratigraphical sections. For explanation of symbols and facies see Figure 5 . L. nodosa, Lochriea nodosa; C. okense, Calcifolium okense ; Cr. leion, Cravenoceras leion. ...
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