Sinostrophia-Discomyorthis Community, Houlungmen, Lesser Khingan Mts.: Early/Lower Emsian, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Crinoidea
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Crinoidea indet.
Miller 1821
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Hamada 1971 | ||||||
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Tentaculitida
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Tentaculitida indet.
Ljaschenko 1955
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Hamada 1971 | ||||||
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unclassified
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Bryozoa indet.
Ehrenberg 1831
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Hamada 1971 | ||||||
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Rhynchonellata
- Spiriferida
- Delthyrididae
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"Howellella" amurensis
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Hamada 1971 | ||||||
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Rhynchonellata
- Spiriferida
- Acrospiriferidae
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Acrospirifer sp.
Wedekind 1926
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Hamada 1971 | ||||||
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Rhynchonellata
- Spiriferida
- Hysterolitidae
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Paraspirifer aff. cultrijugatus
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Hamada 1971 | ||||||
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Rhynchonellata
- Athyridida
- Anoplothecidae
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? Coelospirella orientalis
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Rhynchonellata
- Athyridida
- Nucleospiridae
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Nucleospira musculosa
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Hamada 1971 | ||||||
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Rhynchonellata
- Atrypida
- Atrypidae
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"Atrypa" sp.
Dalman 1828
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Hamada 1971 | ||||||
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Rhynchonellata
- Orthida
- Dalmanellidae
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Reeftonia borealis
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Hamada 1971 | ||||||
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Rhynchonellata
- Orthida
- Rhipidomellidae
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Discomyorthis kinsuiensis
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Rhynchonellata
- Orthida
- Proschizophoriidae
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Proschizophoria kobayashii
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Hamada 1971 | ||||||
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Rhynchonellata
- Spiriferinida
- Cyrtinidae
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Cyrtina sp.
Davidson 1858
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Hamada 1971 | ||||||
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Wilsoniella grandis
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Hamada 1971 | ||||||
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Rhynchonellata
- Rhynchonellida
- Camarotoechiidae
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"Camarotoechia" sp.
Hall and Clarke 1893
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Hamada 1971 | ||||||
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Strophomenata
- Strophomenida
- Chonostrophiidae
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Chonostrophiella khinganensis
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Hamada 1971 | ||||||
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Strophomenata
- Strophomenida
- Strophodontidae
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"Megastrophia" (Protomegastrophia) manchurica
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Strophomenata
- Strophomenida
- Amphistrophiidae
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Sinostrophia kondoi
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Hamada 1971 | ||||||
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Strophomenata
- Strophomenida
- Leptostrophiidae
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Leptostrophia nonakai
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Hamada 1971 | ||||||
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Leptaenopyxis bouei
(Barrande 1848)
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Hamada 1971 | ||||||
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Strophomenata
- Orthotetida
- Areostrophiidae
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Aesopomum chinense
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Hamada 1971 | ||||||
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Strophomenata
- Orthotetida
- Schuchertellidae
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"Schuchertella" sp.
Girty 1904
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Hamada 1971 | ||||||
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Tentaculita
- Styliolinida
- Styliolinidae
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Styliolina sp.
Karpinsky 1884
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Hamada 1971 | ||||||
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Trilobita
- Phacopida
- Phacopidae
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Phacops altaicus
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Hamada 1971 | ||||||
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Trilobita
- Phacopida
- Dalmanitidae
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Probolium altaicum
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Hamada 1971 | ||||||
| replaced by Neoprobolium | |||||||
| see common names | |||||||
Geography
| Country: | China | State/province: | Heilongjiang |
| Coordinates: | 49.0° North, 126.0° East (view map) | ||
| Paleocoordinates: | 39.7° North, 54.8° East | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | local area |
Time
| Period: | Devonian | Epoch: | Early/Lower Devonian |
| Stage: | Emsian | 10 m.y. bin: | Devonian 2 |
| *International age/stage: | Early/Lower Emsian | ||
| Key time interval: | Early/Lower Emsian | ||
| Age range of interval: | 407.60000 - 398.30000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: "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." | |||||
Lithology and environment
| Primary lithology: | green argillaceous,calcareous sandstone |
| Includes fossils? | Y |
| Lithology description: "Shells occur in a calcareous, argillaceous, medium- to fine-grained greenish sandstone, as largely disarticulated specimens." | |
| Environment: | marine indet. |
| Geology comments: "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." | |
Taphonomy
Collection methods and comments
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: "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. | |
Metadata
| Database number: | 25845 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Foote | Research group: | marine invertebrate |
| Created: | 2002-09-26 08:25:28 | Last modified: | 2006-09-15 15:14:05 |
| Access level: | the public | Released: | 2002-09-26 08:25:28 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 7183. | 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] |
Secondary references:
| 7190 | T. Hamada. 1971. Early Devonian brachiopods from the Lesser Khingan district of northeast China. Palaeontological Society of Japan Special Papers 16:1-98 [M. Foote/M. Foote/M. Foote] |