Where: Heilongjiang, China (49.0° N, 126.0° E: paleocoordinates 39.7° N, 54.8° E)
• coordinate estimated from map
• local area-level geographic resolution
When: Early/Lower Emsian (409.1 - 402.5 Ma)
• "Hamada (1971) favored Early Emsian age..His discussion suggests that this is the most likely assignment based on known ranges of the genera he recognized. It is unlikely that the age will be outside the Late Siegenian-Emsian range."
• group of beds-level stratigraphic resolution
Environment/lithology: marine; green, argillaceous, calcareous sandstone and sandstone
Collection methods: "Many slabs of fossiliferous sandstone" (Hamada). Table 20 of ref. 7183 (which includes specimen counts for brachiopods), taken from table 5 of Hamada (ref. 7190). Table 20 actually lumps two of Hamada's lists. I have kept Hamada's lists separate and have added other taxa mentioned by Hamada.
Primary reference: Y. Wang, A. J. Boucot, J.Y. Rong and X.C. Yang. 1987. Community paleoecology as a geologic tool: the Chinese Ashgillian-Eifelian (latest Ordovician through early Middle Devonian) as an example. Geological Society of America Special Paper 211:1-100 [M. Foote/M. Foote/M. Foote]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 25844: authorized by Michael Foote, entered by Michael Foote on 26.09.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Algae | |
| |
Anthozoa | |
| |
Auloporidae indet. Milne-Edwards and Haime 1850 tabulate coral | |
Crinoidea | |
Crinoidea indet. Miller 1821 Sea lily | |
Gastropoda | |
| |
Bellerophontidae indet. M'Coy 1851 snail | |
Bivalvia | |
? Toechomya sp. clam "Paleonucula or Toechymya"; Palaeonucula is a post-Paleozoic genus, so I have gone with Toechomya
| |
Tolmaia squamosa oyster | |
Cephalopoda | |
| |
Rostroconchia | |
? Conocardium sp. Bronn 1835 | |
Tentaculitida indet. Ljaschenko 1955 | |
Strophomenata | |
Strophomenida indet. Opik 1934 | |
Pholidostrophia "sp. A" Hall and Clarke 1892
Pholidostrophia "sp. B" Hall and Clarke 1892 | |
Leptaenopyxis bouei Barrande 1848 | |
"Schuchertella" sp. Girty 1904 | |
Rhynchonellata | |
Cyrtina sp. Davidson 1858 | |
Schizophoria sp. King 1850 | |
Spiriferida indet. Waagen 1883 | |
Acrospirifer sp. Wedekind 1926 | |
"Camarotoechia" sp. Hall and Clarke 1893 | |
? Pectorhyncha sp. McLearn 1918 | |
Lingulata | |
"Lingula" sp. BruguiƩre 1797 | |
Bryozoa | |
Bryozoa indet. Ehrenberg 1831 | |
Tentaculita | |
Styliolina sp. Karpinsky 1884 | |
Trilobita | |
Phacops altaicus trilobite | |
"Probolium altaicum" = Neoprobolium
"Probolium altaicum" = Neoprobolium trilobite |