Rock Canyon Section Bed 086 (Cretaceous of the United States)

Also known as USGS D3975.

Where: Pueblo County, Colorado (38.3° N, 104.7° W: paleocoordinates 40.2° N, 70.0° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Watinoceras devonense ammonoid zone, Bridge Creek Limestone Member (Greenhorn Limestone Formation), Early/Lower Turonian (93.5 - 89.3 Ma)

• Lower Turonian.

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, gray limestone

• Limestone, gray, hard; largely massive but upper few inches shaly; contains abundant pelagic Foraminifera and some mollusks

Size classes: macrofossils, mesofossils, microfossils

Reposited in the USGS, USNM

Collection methods: bulk, mechanical,

Primary reference: W. A. Cobban and G. R. Scott. 1972. Stratigraphy and ammonite fauna and the Graneros Shale and Greenhorn Limestone near Pueblo, Colorado. United States Geological Survey Professional Paper. United States Geological Survey Professional Paper 645:1-108 [L. Bulot/L. Bulot]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 230901: authorized by Pete Wagner, entered by Pete Wagner on 25.07.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Acanthoceratidae
Quitmaniceras "n . sp." Powell 1963 ammonite
Quitmaniceras reaseri Powell 1963 ammonite
Watinoceras devonense Wright and Kennedy 1981 ammonite
Watinoceras devonense devonense
"Kanabiceras sp." = Euomphaloceras Spath 1923 ammonite
 Ammonitida - Anisoceratidae
Allocrioceras larvatum Conrad 1855 ammonite
Anisoceras sp. Pictet 1854 ammonite
 Ammonitida - Hamitidae
Hamites cimarronensis Kauffman and Powell 1977 ammonite
Bivalvia
 Myalinida - Inoceramidae
"Inoceramus labiatus" = Mytiloides labiatus
"Inoceramus labiatus" = Mytiloides labiatus Schlotheim 1813 clam