Where: Grant County, South Dakota (45.2° N, 96.8° W: paleocoordinates 44.8° N, 59.0° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Collignoniceras woollgari ammonoid zone, Carlile Shale Formation, Late/Upper Turonian (93.5 - 89.3 Ma)
• STRATIGRAPHIC RELATIONS: From an unnamed lithostratigraphic unit that overlies Precambrian granite; should be laterally correlative with the Carlisle Shale. AGE: Late Turonian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within formation. Yacubucci 2018 puts this in Carlile Shale.
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified, silty limestone
Size class: macrofossils
Preservation: mold/impression
Reposited in the USNM
Collection methods: surface (in situ),
• COLLECTOR: Not stated in text. REPOSITORY: USNM.
Primary reference: W. A. Cobban. 1983. Molluscan fossil record from the northeastern part of the Upper Cretaceous seaway, Western Interior. United States Geological Survey Professional Paper 1253:1-25 [A. Hendy/A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 88005: authorized by Austin Hendy, entered by Austin Hendy on 30.03.2009, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Actinocamax sp. Miller 1823 belemnite | |
Baculites yokoyamai Tokunga and Shimizu 1926 ammonite | |
Scaphites sloani, "Otoscaphites seabeensis" = Yezoites seabeensis
"Otoscaphites seabeensis" = Yezoites seabeensis Cobban and Gryc 1961 ammonite | |
Binneyites carlilensis ammonite | |
Collignoniceras woollgari Mantell 1822 ammonite SUBSPECIES: Collignoniceras woolgari regulare [entered as Collignoniceras woolgari]
| |
Proplacenticeras stantoni, "Proplacenticeras pseudoplacenta" = Placenticeras pseudoplacenta
Proplacenticeras stantoni Hyatt 1903 ammonite
"Proplacenticeras pseudoplacenta" = Placenticeras pseudoplacenta Hyatt 1903 ammonite | |
Tragodesmoceras carlilensis ammonite | |
Bivalvia | |
Inoceramus apicalis Woods 1912 clam |