USGS Loc. 8880, Chitina Valley [Kennicott Fm] (Cretaceous of the United States)

Where: Valdez-Cordova County, Alaska (61.3° N, 145.4° W: paleocoordinates 56.0° N, 85.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Kennicott Formation, Early/Lower Albian (112.0 - 109.0 Ma)

• STRATIGRAPHIC RELATIONS: From Kennicott Fm, which is overlain by unnamed lower Cretaceous strata and he Matanuska Fm. AGE: Early or early Middle Albian; on the basis of ammonoid biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within regional section.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, brown sandstone and poorly lithified, gray shale

• ENVIRONMENT: Not stated in text, but apparently shallow marine siliciclastic.
• SPECIFIC LITHOLOGY: Massive brown sandstone and crumbly gray shale. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: mold/impression

Collected by Martin and Overbeck in 1914; reposited in the USNM

Collection methods: surface (float),

• COLLECTOR: G.C. Martin and R.M. Overbeck, 1914. REPOSITORY: USNM.

Primary reference: R. W. Imlay. 1960. Early Cretaceous (Albian) ammonites from the Chitna Valley and Talkeetna Mountains, Alaska. United States Geological Survey Professional Paper 354(D):87-114 [A. Hendy/A. Hendy/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 88059: authorized by Austin Hendy, entered by Austin Hendy on 31.03.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ammonoids, possibly including bivalves. NOMENCLATURE: Authoritative publication, with relatively modern nomenclature and species-resolution identifications.
Show authors, comments, and common names
Cephalopoda
 Ammonitida - Tetragonitidae
Anagaudryceras cf. aurarium
Anagaudryceras cf. aurarium Anderson 1938 ammonite
 Ammonitida - Desmoceratidae
Leconteites sp.
Leconteites sp. Casey 1954 ammonite