Wahweap Wash, UT (U1-7): Late/Upper Cenomanian, Utah

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ammonitida - Baculitidae
Sciponoceras sp. Hyatt 1894
13 specimens
Gastropoda - Turritellidae
Turritella sp. Lamarck 1799
9 specimens
Gastropoda - Aporrhaidae
Drepanocheilus ruidium
1 specimen
originally entered as "Drepanochilus ruidium"
Bivalvia
Bivalvia indet. Linnaeus 1758
2 specimens
"infaunal" [originally entered as "Bivalve indet."]
Bivalvia - Pectinida - Buchiidae
Aucellina sp. Pompeckj 1901
85 specimens
Bivalvia - Pectinida - Plicatulidae
Plicatula sp. Lamarck 1801
1 specimen
Bivalvia - Pectinida - Limidae
Lima sp. Bruguière 1797
5 specimens
Bivalvia - Pectinida - Entoliidae
Syncyclonema sp. Meek 1864
1 specimen
Bivalvia - Pectinida - Pectinidae
Camptonectes sp. Meek 1864
6 specimens
Bivalvia - Ostreida - Bakevelliidae
Pseudoptera sp. Meek 1873
1 specimen
Bivalvia - Ostreida - Pteriidae
Phelopteria sp. Stephenson 1953
1 specimen
Bivalvia - Ostreida - Gryphaeidae
Exogyra acroumbonata
7 specimens
Bivalvia - Lucinida - Lucinidae
Lucina sp. Bruguière 1797
2 specimens
Bivalvia - Poromyida - Poromyidae
Liopistha sp. Meek 1864
1 specimen
"conc. and elong."
Polychaeta - Sabellida - Serpulidae
Serpula intrica
127 specimens
Serpula large
4 specimens
see common names

Geography
Country:United States State/province:Utah County:Kane
Coordinates: 37.1° North, 111.6° West (view map)
Paleocoordinates:38.5° North, 74.4° West
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Cenomanian 10 m.y. bin:Cretaceous 5
*Period:Middle Cretaceous - Late/Upper Cretaceous *Epoch:Gallic
*International age/stage:Late/Upper Cenomanian - Late/Upper Cenomanian
Key time interval:Late/Upper Cenomanian Zone: Sciponoceras Ammonite
Age range of interval:99.60000 - 93.50000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Tropic Shale
Local section:U1 Local bed:7 (Unit 11)
Stratigraphic resolution:bed
Stratigraphy comments: Bed horizon is the sample number not the lithologic unit number. The lithologic unit numbers that correspond to the sample numbers given can be found in reference for collection (Elder, 87).
Lithology and environment
Primary lithology:gray,green lithified calcareous "limestone"
Environment:basinal (carbonate) Tectonic setting:cratonic basin
Geology comments: limestone concretion, chalky, light olive gray, well indurated, laminar.

Note: Section U1 constitutes interbedded limestones and shales, but this sedimentary structure is not reflected in the descriptions of each collection, as each is often a single bed, or a portion thereof

Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:bulk,mechanical,field collection
Reason for describing collection:paleoecologic analysis
Collection method comments: Bulk sample disaggregated in lab.
Metadata
Database number:3323
Authorizer:C. Marshall Enterer:S. Low
Modifier:M. Clapham Research group:marine invertebrate
Created:1999-07-29 16:35:23 Last modified:2017-07-28 16:06:42
Access level:the public Released:1999-07-29 16:35:23
Creative Commons license:CC BY
Reference information

Primary reference:

93. W. P. Elder. 1987. The paleoecology of the Cenomanian-Turonian (Cretaceous) stage boundary extinctions at Black Mesa, Arizona. Palaios 2(1):24-40 [C. Marshall/S. Low/A. Clement]