Wahweap Wash, UT (U1-15) (Cretaceous of the United States)

Where: Kane County, Utah (37.1° N, 111.6° W: paleocoordinates 38.5° N, 74.4° W)

• small collection-level geographic resolution

When: Neocardioceras Ammonite zone, Tropic Shale Formation, Late/Upper Cenomanian (99.6 - 93.5 Ma)

• 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).

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, burrowed, gray, calcareous shale

• Shale (middle bent), olive dark gray-black, mod. 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.

Size class: macrofossils

Collection methods: bulk, mechanical,

• Bulk sample disaggregated in lab.

Primary reference: 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]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 3331: authorized by Charles Marshall, entered by Sofy Low on 29.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
"infaunal" [originally entered as "Bivalve indet."]
Gastropoda indet. Linnaeus 1758 clam
originally entered as "Gastropod indet."
 Myalinida - Inoceramidae
Inoceramidae indet. Giebel 1852 clam
originally entered as "informal Inoceramid indet."; changed by JA 21.2.07
Inoceramus ? tenuistriatus clam
"tenuistriatus (?)" - originally entered as "Inoceramus tenuistriatus (?)"
Inoceramus pictus Sowerby 1829 clam
"pictus pictus" - originally entered as "Inoceramus pictus pictus"
 Pectinida - Pectinoidae
Camptonectes sp. Meek 1864 scallop
 Ostreida - Gryphaeidae
 Ostreida - Pteriidae
Phelopteria sp. Stephenson 1953 pearl oyster
 Pholadida - Corbulidae
Corbula sp. Bruguière 1789 clam
 Cardiida - Veneridae
Legumen sp. Conrad 1858 venus clam
originally entered as "Ligumen sp."
 Lucinida - Lucinidae
Lucina sp. Bruguière 1797 clam
 Protobranchia - Solemyidae
Solemya obscura Awning Clam
Gastropoda
 Stromboidea - Aporrhaidae
Drepanocheilus ruidium snail
originally entered as "Drepanochilus ruidium"
 Sorbeoconcha - Turritellidae
Turritella sp. Lamarck 1799 turret shell
Cephalopoda
 Ammonitida - Acanthoceratidae
Pseudaspidoceras sp. Hyatt 1903 ammonite
Kamerunoceras sp. Reyment 1954 ammonite