M1238 - Staniukovich Mountain section (Jurassic of the United States)

Also known as M1238

Where: Alaska (55.8° N, 160.6° W: paleocoordinates 40.4° N, 98.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Staniukovich Formation, Tithonian (152.1 - 145.0 Ma)

• The area is structurally complex, and it is possible that parts of the section are duplicated or omitted by unapparent faulting. Nearby fossil collections can be related approximately to the measure section with reasonable confidence in all parts except the Chignik Formation. The Staniukovich Formation reaches 1800 feet in the region and comprises a homogeneous sandstone and siltstone. Listed as Portlandian = Tithonian

• bed-level stratigraphic resolution

Environment/lithology: marine; gray, green sandstone and gray, green siltstone

• No paleoenvironmental data reported.
• Feldspathic and arkosic sandstone and siltstone, gray to greenish gray, weathering typical yellow-brown.

Size class: macrofossils

Collection methods: quarrying,

• Collections examined by D. Jones (USGS), 1962. Collections are reposited at USGS Menlo Park, or presumably USNM (not reported)

Primary reference: C.A. Burk. 1965. Geology of the Alaska Peninsula-island arc and continental margin (Part 1). Geological Society of America Memoir 99(1) [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 44056: authorized by Austin Hendy, entered by Austin Hendy on 31.08.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Some other fossils mentioned, but not named.
Show authors, comments, and common names
Bivalvia
 Myalinida - Inoceramidae
Inoceramus sp.
Inoceramus sp. Sowerby 1814 clam
 Pectinida - Buchiidae
Buchia piochii
Buchia piochii Gabb 1864 scallop