Bed 4, Mongkelu locality, Wutubulake Fm., Junggar Basin, Xinjiang, China: Pridoli, China

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Algites indet. Seward 1894
Dou and Sun 1985
Paracyclus cf. rugosa
Cai et al. 1993
bivalve
Salopella xinjiangensis fertile axis
Ambitisporites avitus microspore
Cai et al. 1993
Ambitisporites dilutes microspore
Cai et al. 1993
Anthozoa - Favositida - Favositidae
Favosites sp. Lamarck 1816
Cai et al. 1993
coral
Anthozoa - Stauriida - Laccophyllidae
? Syringaxon sp. Lindström 1882
Cai et al. 1993
coral
Pterobranchia - Dendroidea - Acanthograptidae
Dictyonema sp. Hall 1851
Cai et al. 1993
Pterobranchia - Graptoloidea - Monograptidae
Monograptus anerosus
Cai et al. 1993
graptolite
? Monograptus ? pridoliensis
Cai et al. 1993
graptolite
Monograptus mironovi
Cai et al. 1993
graptolite
Pterobranchia - Graptoloidea
Pseudomonoclimacis bandelotovi
Cai et al. 1993
graptolite
Rhynchonellata - Spiriferida - Delthyrididae
Howellella sp. Kozlowski 1946
Cai et al. 1993
brachiopod
Rhynchonellata - Atrypida
Wutubulakia sulcifera
Cai et al. 1993
Rhynchonellata - Rhynchonellida - Machaerariidae
Ferganella sp. Nikiforova 1937
Cai et al. 1993
brachiopod
Strophomenata - Strophomenida - Leptostrophiidae
Leptostrophia rotunda
Cai et al. 1993
brachiopod
Bivalvia - Mytilida - Mytilidae
Mytilus cf. beyrichi
Cai et al. 1993
bivalve
    = "Mytilus" cf. beyrichi
Wagner 2023
Bivalvia - Modiomorphida - Modiomorphidae
Goniophora cf. trapezcidolis
Cai et al. 1993
bivalve
Trilobita - Proetida - Proetidae
? Warbungella aboronius
Cai et al. 1993
trilobite
    = ? Warburgella abnormis Xiang and Zhang 1983
Lemke 2020
"Warbungella aboronius" is almost surely a misprint.
unclassified
Sciadophyton pristinum n. sp.
    = Eukaryota indet. Chatton 1925
Cai et al. 1993
Not Sciadophyton but more likely a holdfast of an alga or a graptolite
Hostinella sp. axis Barrande 1882
Dou and Sun 1985
Zosterophyllum sp. axis Penhallow 1892
H-branching
    = cf. Hostinella sp. Barrande 1882
Cai et al. 1993
not Zosterophyllum
Psilophytites sp. sterile axis Hoeg 1952
Dou and Sun 1985
Zosterophyllopsida - Cooksoniales
Junggaria spinosa fertile axis
    = Cooksonella sphaerica
Cai et al. 1993
replaced by Eocooksonia
this name is used for something else though.
unclassified
Zosterophyllum sp. axis Penhallow 1892
H-branching
Retusotriletes warringtonii microspore
Cai et al. 1993
Hepaticae
Thallites indet. Walton 1925
Dou and Sun 1985
unclassified
Parka indet. Fleming 1857
Parka informal indet. 2 Fleming 1857
Dou and Sun 1985
Protozoa
Angochitina cf. echinata
Cai et al. 1993
chitinozoan
see common names

Geography
Country:China State/province:Xinjiang County:Mongolia Autonomous County
Coordinates: 46.8° North, 66.6° East (view map)
Paleocoordinates:11.1° South, 67.2° East
Time
Period:Silurian Epoch:Pridoli
10 m.y. bin:Silurian 2
*Period:Late/Upper Silurian
Key time interval:Pridoli Zone: bouceki/bandeletovi zone
Age range of interval:423.00000 - 419.20000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Hoboksar Formation:Wutubulake Local bed:Bed #4
Local order:bottom to top
Stratigraphic resolution:group of beds
Stratigraphy comments: originally considered to be Devonian (Gedinnian) but reported as top of Pridoli in Cai, Dou & Edwards, 1993.
Lithology and environment
Primary lithology:red or brown,yellow lithified calcareous sandstone
Secondary lithology:pebbly poorly lithified sandstone
Includes fossils?Y
Lithology description: Yellow-brown clacareous and tuffaceous fine-grained sandstone intercalated with sandstone containing pebbles and lenticular bioclastic limestone.
Environment:marine indet.
Geology comments: On Kazakhstan plate but near the suture between the Siberian and Kazakhstan plates. Depositional environment could have been shallow shelf (Rong & Chen, 1992) or low energy, dysaerobic trough with distal turbidites. Diversity of faunas and facies may indicate offshore transport of sediments during storm disturbance of shelf environments.
Taphonomy
Modes of preservation:adpression,permineralized,coalified,original carbon,original sporopollenin,replaced with limonite
Size of fossils:macrofossils
Spatial orientation:random
Preservation of anatomical detail:variable
Spatial resolution:allochthonous
Collection methods and comments
Collection methods:selective quarrying,chemical,mechanical
Reason for describing collection:taxonomic analysis
Taxonomic list comments:Invertebrate fossils are merely mentioned in Cai, Dou & Edwards' 1993 paper and not described.
Metadata
Database number:10931
Authorizer:P. Gensel, P. Wagner Enterer:M. Kotyk, P. Wagner, P. Gensel
Modifier:P. Gensel Research group:paleobotany
Created:2001-07-05 13:53:10 Last modified:2002-05-30 12:15:08
Access level:group members Released:2001-07-05 13:53:10
Creative Commons license:CC BY
Reference information

Primary reference:
4051. Y. W. Dou and Z. H. Sun. 1983. Devonian Plants. Palaeontological Atlas of Xinjiang, Vol. II. Late Palaeozoic Section. Geological Publishing House, Beijing [P. Gensel/M. Kotyk]

Secondary references:

4053 C. Y. Cai, Y. W. Dou, and D. Edwards. 1993. New observations on a Pridoli plant assemblage from north Xinjiang, northwest China, with comments on its evolutionary and palaeogeographica significance. Geological Magazine 130(2):155-170 [P. Gensel/M. Kotyk]
4052 Y. W. Dou and Z. H. Sun. 1985. On the Late Palaeozoic plants in Northern Xinjiang. Acta Geologica Sinica 59:1-10 [P. Gensel/M. Kotyk]
74967 U. Lemke. 2020. Katalog der verfügbaren und nicht verfügbaren Namen der Arten und Unterarten der Trilobita. (Catalogue of the available names and non available names of the species and subspecies for the Class Trilobita). [P. Wagner/P. Wagner]
9042 P. J. Wagner. 2023. Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023). [P. Wagner/P. Wagner/P. Wagner]