Lower Middle Shangdamingshan; Damingshan, Baiku, Mianduhe (Devonian of China)

Where: Nei Mongol, China (48.3° N, 118.2° E: paleocoordinates 37.5° N, 59.2° E)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Cheiloceras Stufe - Platyclymenia Stufe zone, Cheiloceras - Sporadoceras beds Member (Shangdamingshan Formation), Famennian (372.2 - 358.9 Ma)

• member-level stratigraphic resolution

Environment/lithology: basinal (); lithified, red limestone

• Purplish-red bioclastic limestone. "The trilobites may be taken as inhabitants of the elevated area in the deep-sea basin, where they lived, presumably, in the dysphotic zone."
• Purplish-red bioclastic limestone.

Primary reference: L. -W. Xiang. 1981. Some Late Devonian trilobites of China. Special Paper Geological Society of America 187:183-191 [J. Alroy/M. Sommers/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 3957: authorized by John Alroy, entered by Mike Sommers on 12.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Yields many ammonoids associated with some trilobites and coral."
Show authors, comments, and common names
Cephalopoda
 Goniatitida - Cheiloceratidae
"Cheiloceras subpartitum" = Cheiloceras (Cheiloceras) subpartitum
"Cheiloceras subpartitum" = Cheiloceras (Cheiloceras) subpartitum Munster 1839 ammonite
 Goniatitida - Sporadoceratidae
Sporadoceras pompeckji, "Sporadoceras rotundum" = Sporadoceras (Sporadoceras) rotundum, Sporadoceras biferum, "Sporadoceras latilobatum" = Sporadoceras (Sporadoceras) latilobatum
"Sporadoceras rotundum" = Sporadoceras (Sporadoceras) rotundum Wedekind 1908 ammonite
Sporadoceras biferum Phillips 1841 ammonite
"Sporadoceras latilobatum" = Sporadoceras (Sporadoceras) latilobatum Schindewolf 1923 ammonite