Wahweap Wash, UT (U1-11) (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: Sciponoceras 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: lithified, burrowed, gray, calcareous limestone

• Limestone concretions, chalky, medium light olive gray, well indurated.

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.

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 3327: authorized by Charles Marshall, entered by Sofy Low on 29.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonoidea -
Ammonoidea indet.
Ammonoidea indet. ammonite
originally entered as "Ammonite"; changed by JA 30.6.04
 Ammonitida - Scaphitidae
Worthoceras sp.
Worthoceras sp. Adkins 1928 ammonite
 Ammonitida - Baculitidae
Sciponoceras sp.
Sciponoceras sp. Hyatt 1894 ammonite
 Ammonitida - Acanthoceratidae
Euomphaloceras sp.
Euomphaloceras sp. Spath 1923 ammonite
Gastropoda
 Sorbeoconcha - Naticidae
Euspira concinna, Eunaticina textilis
Euspira concinna moon snail
 Sorbeoconcha - Aporrhaidae
Anchura sp., Drepanocheilus ruidium, Perissoptera sp.
Anchura sp. Conrad 1860 snail
Drepanocheilus ruidium snail
originally entered as "Drepanochilus ruidium"
Perissoptera sp. Tate 1865 snail
Scaphopoda
  -
Scaphopoda indet.
Scaphopoda indet. Bronn 1862 tusk shell
originally entered as "Scaphopod "
Bivalvia
  -
Bivalvia indet.
Bivalvia indet. Linnaeus 1758 clam
"infaunal" [originally entered as "Bivalve indet."]
 Lucinida - Lucinidae
Lucina sp.
Lucina sp. Bruguière 1797 clam
 Poromyida - Poromyidae
"Liopistha meeki" = Psilomya meeki
"Liopistha meeki" = Psilomya meeki White 1874 clam
 Pholadida - Corbulidae
Corbula sp.
Corbula sp. Bruguière 1789 clam
 Myalinida - Inoceramidae
Inoceramidae indet., "Inoceramus pictus" = Inoceramus (Inoceramus) pictus
Inoceramidae indet. Giebel 1852 clam
originally entered as "informal Inoceramid indet."; changed by JA 21.2.07
"Inoceramus pictus" = Inoceramus (Inoceramus) pictus Sowerby 1829 clam
"pictus pictus" - originally entered as "Inoceramus pictus pictus"
 Ostreida - Gryphaeidae
Pycnodonte newberryi
 Ostreida - Ostreidae
Ostreidae indet.
Ostreidae indet. Rafinesque 1815 oyster
originally entered as "Oyster indet."