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GEOREF RECORD

Chondrichthyans from the lower Ferron Sandstone Member of the Mancos Shale (Upper Cretaceous; middle Turonian) of Emery and Carbon Counties, Utah, USA

Martin A. Becker, Robert W. Wellner, Christopher S. Mallery and John A. Chamberlain
Chondrichthyans from the lower Ferron Sandstone Member of the Mancos Shale (Upper Cretaceous; middle Turonian) of Emery and Carbon Counties, Utah, USA
Journal of Paleontology (March 2010) 84 (2): 248-266

Abstract

The Lower Ferron Sandstone Member of the Mancos Shale in southeastern Utah preserves a chondrichthyan assemblage of at least 13 taxa that include: Hybodus sp., Ptychodus cf. P. mammillaris Agassiz, 1843, Ptychodus whipplei Marcou, 1858, cf. Chiloscyllium sp., Scapanorhynchus raphiodon (Agassiz, 1843), Cretodus crassidens (Dixon, 1850), cf. Leptostyrax sp., cf. Cretalamna appendiculata (Agassiz, 1835), Squalicorax sp., Pseudohypolophus mcnultyi (Thurmond, 1971), Protoplatyrhina hopii Williamson, Kirkland and Lucas, 1993, Ischyrhiza schneideri (Slaughter and Steiner, 1968), and Ptychotrygon triangularis (Reuss, 1844). Although this assemblage is typical of other Turonian chondrichthyan faunas in North America, fossil teeth are preserved in two unique facies associations that consist of arenitic sandstones with mud interclasts and rounded chert, feldspar, and quartz pebbles. The coarser beds within these facies associations are previously interpreted to represent storm events and turbidity flows associated with a sea level lowstand. Chondrichthyan teeth occurring within these coarser beds are indicative of extensive transport and reworking and attest to the durable nature of chondrichthyan teeth for biostratigraphic and paleoecological interpretations. Similar studies of chondrichthyan teeth in shelf marine settings may also provide new insights for facies interpretations related to sequence stratigraphy and regional stratigraphic correlations.


ISSN: 0022-3360
EISSN: 1937-2337
Coden: JPALAZ
Serial Title: Journal of Paleontology
Serial Volume: 84
Serial Issue: 2
Title: Chondrichthyans from the lower Ferron Sandstone Member of the Mancos Shale (Upper Cretaceous; middle Turonian) of Emery and Carbon Counties, Utah, USA
Affiliation: William Paterson University, Department of Environmental Science, Wayne, NJ, United States
Pages: 248-266
Published: 201003
Text Language: English
Publisher: Paleontological Society, Lawrence, KS, United States
References: 107
Accession Number: 2010-027083
Categories: Vertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. strat. col., 1 table, sketch map
N39°00'00" - N39°30'00", W110°40'00" - W110°10'00"
Secondary Affiliation: ExxonMobil Development Company, USA, United StatesUniversity of North Texas, USA, United StatesBrooklyn College, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, The Paleontological Society. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201016
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