Where: Leninabad, Tajikistan (40.3° N, 69.6° E)
• Paleocoordinates: 19.5° N, 71.9° E (Wright 2013)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Rotliegendes (283.5 - 259.5 Ma)
• The beds are assumed to be coeval with the Lower Rotliegende of central Europe, although correlations are still largely uncertain (Laurin 1996b; Ivakhnenko 1981; Berman et al. 1997).
• group of beds-level stratigraphic resolution
Environment/lithology: lacustrine; shale
Size class: macrofossils
Collected by Kalakanaty geological group, PIN in 1961, 1964, 1975; reposited in the PIN
• The type locality (see below) was discovered by a team of geologists of the Kalakanaty geological group in 1961. In 1964, an expedition from the Palaeontological Institute of the Russian Academy of Sciences led by Tatarinov found 124 specimens. A second expedition to the type locality, led by Kalandadze in 1975, resulted in the collection of about 850 additional speci- mens of assorted size from a surface of about six square metres.
Primary reference: J. Klembara and M. Ruta. 2005. The seymouriamorph tetrapod Ariekanerpeton sigalovi from the Lower Permian of Tadzhikistan. Part I: Cranial anatomy and ontogeny. Transactions of the Royal Society of Edinburgh: Earth Sciences 96(1):43-70 [R. Butler/E. Dunne]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 181134: authorized by Richard Butler, entered by Emma Dunne on 23.08.2016
Creative Commons license: CC0 (CC0)
Taxonomic list
Osteichthyes | |
"Discosauriscus sigalovi n. sp." = Ariekanerpeton sigalovi
"Discosauriscus sigalovi n. sp." = Ariekanerpeton sigalovi Tatarinov 1968 tetrapod PIN 2079/1 (holotype) skull and postcranial skeleton in dorsal aspect, both slightly disrupted and partially weathered. Referred specimens : PIN 2079: 175, 199a, 247a, b, 253a, b, 262a, b, 309, 316b, 324a, b, 334a, b, 347, 369, 396a, b, 431a, b, 434, 436b, 500b, 509a, 510b, 550, 600, 608, 638b, 641, 704a, 747, 764a, b, 777, 800a, b, and 823b.
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