Where: Russian Federation (42.9° N, 132.3° E: paleocoordinates 41.0° N, 110.3° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Lazurnaya Bay Formation, Induan (252.2 - 251.2 Ma)

• STRATIGRAPHIC RELATIONS: Lower Triassic strata in region are lithostratigraphically divided into the Lazurnaya Bay and Zhitkov Formations in an upward sequence. The Lazurnaya Bay Fm unconformably overlies the Permian Abrek Fm. THICKNESS: The Lazurnaya Bay Fm is 57.9 m thick in the Abrek Bay region. AGE: Contains an assemblage that suggest the upper Induan age, underlying lower Olenekian (lower part of the Hedenstroemia bisphorensis Zone) in the upper part of the formation. The Induan/Olenekian boundary is located at 55 m above the base of the formation.

• formation-level stratigraphic resolution

Environment/lithology: coastal; lithified, fine-grained, shelly/skeletal, gray, calcareous sandstone

Size class: macrofossils

Collection methods: COLLECTOR: Collection is a composite based on several workers, none of which are named. REPOSITORY: NSM (National Science Museum, Tokyo); CGM ?

Primary reference: Y.D. Zakharov and Y. Shigeta. 2000. Gyronautilus, a new genus of Triassic Nautilida from South Primorye, Russia. Paleontological Research 4(4):231-234 [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 61960: authorized by Austin Hendy, entered by Austin Hendy on 08.07.2006, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)