Shan MaJiaGou Fm., Southern region of QingShuiHe County, Nei Mongo Prov., China (Ordovician of China)

Where: Nei Mongol, China (40.0° N, 112.0° E)

• Paleocoordinates: 26.3° N, 95.2° E (Wright 2013)

• local area-level geographic resolution

When: Shan Majiagou Formation, Llanvirn (468.0 - 458.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified, gray, yellow lime mudstone and limestone

• light grayish yellow thin-bedded mud limestone and limestone interbedded with limestone

Primary reference: Nei Monggol Stratigraphic Group. 1978. Regional stratigraphic table of northern China, Nei Monggol part. Geological Publishing House, Beijing, China 1-338 [A. Miller/P. Novack-Gottshall/A. Rees]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 8541: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 01.08.2000

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Actinocerida - Ormoceratidae
Ormoceras sp.
Ormoceras sp. Stokes 1840
 Actinocerida - Armenoceratidae
Armenoceras sp.
Armenoceras sp. Foerste 1924
 Orthocerida - Sactoceratidae
Sactoceras sp.
Sactoceras sp. Hyatt 1884
Gastropoda
 Euomphalina - Ophiletidae
Ecculiomphalus sp.
Ecculiomphalus sp. Portlock 1843 snail