USGS M1691-93, 1700-01 Wrangell Mountains (Triassic of the United States)

Where: Alaska (61.7° N, 142.7° W: paleocoordinates 4.3° N, 74.1° W)

• coordinate estimated from map

• local area-level geographic resolution

When: McCarthy Formation, Norian (228.0 - 208.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: deep-water; lithified, calcareous shale and lithified limestone

• regularly interbedded calcareous shale, impure limestone and impure spiculitic chert

Size class: macrofossils

Reposited in the USGS

Primary reference: N. J. Silberling, J. A. Grant-Mackie, and K. M. Nichols. 1997. The Late Triassic bivalve Monotis in accreted terranes of Alaska. United States Geological Survey Bulletin 2151:1-21 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 85147: authorized by Wolfgang Kiessling, entered by Uta Merkel on 03.12.2008, edited by Hannah Shepherd

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Monotidae
Monotis (Eomonotis) jakutica Teller 1896 scallop
Monotis (Monotis) alaskana Smith 1927 scallop
Monotis (Monotis) ? haueri Kittl 1912 scallop
Monotis (Monotis) haueri Kittl 1912 scallop