Menbu Fm (Bed 10), Lanongla section (Jurassic of China)

Where: China (28.1° N, 86.0° E: paleocoordinates 40.2° S, 45.0° E)

• outcrop-level geographic resolution

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

• STRATIGRAPHIC RELATIONS: From Menbu Fm (Callovian-E. Tithonian), which underlies the Tithonian Shuomo Fm. THICKNESS: Group of two beds within upper 70 m of a 148 m thick exposure of Menbu Fm. AGE: Tithonian. STRATIGRAPHIC POSITION: From uppermost part of formation above bed 9 (PBDB# 64864).

• group of beds-level stratigraphic resolution

Environment/lithology: deep-water; poorly lithified shale

• ENVIRONMENT: Offshore, deeper water, possibly continental slope.
• SPECIFIC LITHOLOGY: Shale. LITHIFICATION: Poorly lithified based on figured specimens.

Size class: macrofossils

Collection methods: COLLECTOR: Collected during 1980-1981; reported by Gou and Li, 1983. REPOSITORY: Beijing Graduate School, Wuhan College of Geology, China.

Primary reference: L. Xiaochi and J. A. Grant-Mackie. 1988. Upper Jurassic and Lower Cretaceous Buchia (Bivalvia) from southern Tibet, and some wider considerations. Alcheringa 12:249-268 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 64865: authorized by Austin Hendy, entered by Austin Hendy on 17.09.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Probably not exhaustive, including Buchia and biostratigraphically significant taxa. NOMENCLATURE: Appears to use modern nomenclature, with species-level designations.
Show authors, comments, and common names
Cephalopoda
 Ammonitida - Perisphinctidae
Aulacosphinctoides infundibulus
 Ammonitida - Oppeliidae
Gymnodiscoceras sphenodomum, Gymnodiscoceras aff. griesbachi
 Phylloceratida - Phylloceratidae
Ptychophylloceras lanonglaensis