Sinostrophia-Discomyorthis Community, Kinsui, Lesser Khingan Mts. (Devonian of China)

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

• "Typical BA 3 community...The size of the faunal list as well as the relative rarity of some of the shells, suggests that a few of the rarer taxa may have become admixed by current transport...Assemblages of this type normally repreesent relatively normal, level-bottom conditions within the BA 3 region."
• "Shells occur in a calcareous, argillaceous, medium- to fine-grained greenish sandstone, as largely disarticulated specimens." Hamada also mentiones white, massive, hard, medium-grained 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
  -
Trilobita
 Phacopida - Phacopidae
 Phacopida - Dalmanitidae
"Probolium altaicum" = Neoprobolium
"Probolium altaicum" = Neoprobolium trilobite
 Lophophorata -
Tentaculitida indet. Ljaschenko 1955
Strophomenata
 Productida - Chonostrophiidae
 Orthotetida - Schuchertellidae
 Orthotetida - Areostrophiidae
 Strophomenida -
 Strophomenida - Leptostrophiidae
 Strophomenida - Rafinesquinidae
Leptaenopyxis bouei Barrande 1848
 Strophomenida - Strophodontidae
Pholidostrophia sp. Hall and Clarke 1892
sp. A
Pholidostrophia sp. Hall and Clarke 1892
sp. B
Rhynchonellata
 Athyridida - Nucleospiridae
 Athyridida - Anoplothecidae
 Spiriferinida - Cyrtinidae
Cyrtina sp. Davidson 1858
 Spiriferida -
Spiriferida indet. Waagen 1883
 Spiriferida - Acrospiriferidae
Acrospirifer sp. Wedekind 1926
 Spiriferida - Delthyrididae
 Spiriferida - Hysterolitidae
 Rhynchonellida - Trigonirhynchiidae
 Rhynchonellida - Machaerariidae
 Rhynchonellida - Camarotoechiidae
"Camarotoechia" sp. Hall and Clarke 1893
 Rhynchonellida - Uncinulidae
 Rhynchonellida - Obturamentellidae
? Pectorhyncha sp. McLearn 1918
 Orthida - Schizophoriidae
Schizophoria sp. King 1850
 Orthida - Proschizophoriidae
 Orthida - Rhipidomellidae
 Orthida - Dalmanellidae
Lingulata
 Lingulida - Lingulidae
"Lingula" sp. BruguiƩre 1797
Rostroconchia
  -
? Conocardium sp. Bronn 1835
Bivalvia
 Trigoniida -
? Toechomya sp. clam
"Paleonucula or Toechymya"; Palaeonucula is a post-Paleozoic genus, so I have gone with Toechomya
Gastropoda
  -
Gastropoda indet. Cuvier 1797 snail
low spired
 Bellerophontida - Bellerophontidae
Bellerophontidae indet. M'Coy 1851 snail
Tentaculita
 Styliolinida - Styliolinidae
Styliolina sp. Karpinsky 1884
Cephalopoda
 Nautiloidea -
Nautiloidea indet. Agassiz 1847 nautiloid
Michelinoceratoid
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Anthozoa
  -
Anthozoa indet. Ehrenberg 1834
thamnoporoid
 Auloporida - Auloporidae
Auloporidae indet. Milne-Edwards and Haime 1850 tabulate coral
unclassified
  -
Plantae indet. Haeckel 1866
land plant fragments
 Algae -
Algae indet.
calcareous algae