Glyptagnostus reticulatus zone, Isha River, Altai - Romanenko 1984: Sakian, Russian Federation

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Agnostida
Glaberagnostus sp. Romanenko 1985
Trilobita - Olenida - Aphelaspidae
Nganasanella sp. Rozova 1963
Olentella sp. Ivshin 1953
Maduiya sp. Rozova 1963
Maduiya formosa n. sp.
30 specimens
30 cranidia, librigenae, and pygidia
Aphelaspis sp. Resser 1935
Trilobita - Olenida - Pterocephaliidae
Prehousia sp. Palmer 1960
Uxunella plana
Uxunella gloriosa
Trilobita - Olenida - Eulomidae
Altaiaspis sp. Ivshin 1960
Trilobita - Ptychopariida - Norwoodiidae
Hardyoides sp. Kobayashi 1938
see common names

Geography
Country:Russian Federation State/province:Altai (Region)
Coordinates: 52.0° North, 86.0° East (view map)
Paleocoordinates:2.6° South, 19.9° East
Basis of coordinate:based on political unit
Geographic resolution:local area
Time
Period: Cambrian Epoch: Furongian
10 m.y. bin: Cambrian 5
*Period:Late/Upper Cambrian *Epoch:Merioneth
*International age/stage:Middle Maentwrogian - Late/Upper Maentwrogian *Local age/stage:Saukian
Key time interval: Sakian Trilobite zone:  Glyptagnostus reticulatus
Age range of interval: 497 - 492.2 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Kul'bich
Stratigraphic resolution:formation
Stratigraphy comments: Unfortunately, the localities are not designated as either terrigenous or calcareous terrigenous ""types"". Only vague lithologies can be inferred and ""types"" inferred through the biozone descriptions. If the lithology is the terrigenous type, the formation is Tandoshinskaya, if the lithology is calcareous-terrigenous type, the formation is either Yelandin or Bol'sheishin. PJW: laevigata zone is Sakian & Kul'bich formation in this region.
Lithology and environment
Primary lithology: lithified "limestone"
Lithology description: limestone
Environment:carbonate indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some genera,some macrofossils
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Collection method comments: Not all polymeroid trilobites are included.
Taxonomic list comments:List does not include brachiopods or hyoliths which may occur rarely in the sections.
Metadata
Database number:10063
Authorizer:M. Patzkowsky Enterer:P. Borkow
Modifier:P. Wagner Research group:marine invertebrate
Created:2001-02-13 11:12:20 Last modified:2022-04-29 12:40:29
Access level:the public Released:2001-02-13 11:12:20
Creative Commons license:CC BY
Reference information

Primary reference:

899. Y.e. U. Romanenko. 1984. Trilobites from the Middle-Upper Cambrian boundary beds of Altai. Paleontologicial Journal 19(4):64-74 [M. Patzkowsky/P. Borkow]