Member 3, Xia MaJiaGou Fm., Dabeitouchun, Yi Co., HeBei Prov., China (Ordovician of China)

Where: HeBei, China (39.0° N, 115.0° E: paleocoordinates 12.1° S, 129.8° E)

• local area-level geographic resolution

When: 3 Member (Xia Majiagou Formation), Arenig (478.6 - 466.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, dolomitic, gray dolomite and limestone

• dark gray think-bedded dolomitic limestone and varved limestone and dolomite

Primary reference: North China Stratigraphic Group. 1979. Regional Stratigraphic Table of North China. Branch of HeBei Province and TianJin City 250-260 [A. Miller/P. Novack-Gottshall/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 7974: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 10.06.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Cephalopoda
 Orthocerida - Proteoceratidae
Tofangoceras sp. Kobayashi 1927
 Actinocerida - Armenoceratidae
Armenoceras sp. Foerste 1924
Trilobita
 Asaphida - Asaphidae
Eoisotelus sp. Wang 1938 trilobite
Conodonta
 Ozarkodinida -
  -
Sagittodontus sp. Rhodes 1953 conodont
 Proconodontida - Cordylodontidae
Cordylodus sp. Pander 1856 conodont
 Prioniodontida -
"Ptiloconus sp." = Erismodus
"Ptiloconus sp." = Erismodus conodont
 Prioniodontida - Acodontidae
"Acontiodus sp." = Acodus
"Acontiodus sp." = Acodus Pander 1856 conodont
 Prioniodontida - Phragmodontidae
Gothodus sp. Lindström 1955 conodont
 Prioniodontida - Oistodontidae
Oistodus sp. Pander 1856 conodont
 Protopanderodontida - Protopanderodontidae