Shakhtau open pit, sample 7 (Permian of Russian Federation)

Where: Bashkortostan, Russian Federation (53.6° N, 56.1° E: paleocoordinates 22.1° N, 42.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Shakhtau Reef Formation, Asselian (298.9 - 295.5 Ma)

• The preliminary estimate of the geological age based on geological exploration profiles is Late Asselian

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified reef rocks

Size class: macrofossils

Preservation: mold/impression

Reposited in the PIN

• PIN collections 5538 (gastropods) and 5668 (cephalopods)

Primary reference: A. V. Mazaev. 2019. A new species of the genus Bellazona (Gastropoda) from the Early Permian reef limestones of Shakhtau. Paleontological Journal 53:252-256 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 202159: authorized by Matthew Clapham, entered by Matthew Clapham on 27.06.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Bactritida - Bactritidae
Ctenobactrites costatus7
Ctenobactrites costatus7 Shimanskiy 1951
Polyplacophora
 Neoloricata - Lekiskochitonidae
Lekiskochiton crassus n. sp.6
Lekiskochiton crassus n. sp.6 Mazaev 2024 chiton
Rostroconchia
 Conocardiida - Bransoniidae
Hoarepora uralica5, Ashaconcha rara5
Hoarepora uralica5 Mazaev 2023
Ashaconcha rara5 Mazaev 2023
Tergomya
 Archinacellida - Damilinidae
Novlepatella uralensis n. sp.3
Novlepatella uralensis n. sp.3 Mazaev 2019
Gastropoda
 Trochoidea - Araeonematidae
Yunnania romanovskyi3
Yunnania romanovskyi3 Licharew 1967 snail
 Neritoidea - Naticopsidae
Naticopsis spallanzanii3
Naticopsis spallanzanii3 Gemmellaro 1889 snail
 Heterostropha - Stuoraxidae
Monimirus bonus n. gen. n. sp.3
Monimirus bonus n. gen. n. sp.3 Mazaev 2019 snail
 Caenogastropoda - Goniasmatidae
Stegocoelia abscisa n. sp.3, Stegocoelia quinquecostata3, Platyzona shikhanensis3
Stegocoelia abscisa n. sp.3 Mazaev 2019 snail
Platyzona shikhanensis3 Mazaev 2019 snail
 Caenogastropoda - Orthonematidae
Arribazona seleukensis n. sp.3, Orthonema "sp. 1"3, Orthonema frequens3, Orthonema nonnullum n. sp.3
Arribazona seleukensis n. sp.3 Mazaev 2019 snail
Orthonema "sp. 1"3 Meek and Worthen 1862 snail
Orthonema frequens3 Licharew 1968 snail
Orthonema nonnullum n. sp.3 Mazaev 2019 snail
 Cerithioidea - Acanthonematidae
Callispira taosiformis n. sp.3
Callispira taosiformis n. sp.3 Mazaev 2019 snail
 Caenogastropoda - Meekospiridae
Girtyspira oblonga n. sp.3
Girtyspira oblonga n. sp.3 Mazaev 2019 snail
 Zygopleuroidea - Pseudozygopleuridae
Stephanozyga seminuda3, Bandelzyga elegans n. sp.3, Plocezyga minuta n. sp.3
Stephanozyga seminuda3 Mazaev 2019 snail
Bandelzyga elegans n. sp.3 Mazaev 2019 snail
Plocezyga minuta n. sp.3 Mazaev 2019 snail
 Euomphalina - Pseudophoridae
Sallya indigena n. sp.3
Sallya indigena n. sp.3 Mazaev 2019 snail
 Euomphalina - Anomphalidae
Tychonia fortis n. sp.3, Anomphalus planus3, Bolicharewia edita n. gen. n. sp.3
Tychonia fortis n. sp.3 Mazaev 2019 snail
Anomphalus planus3 Licharew 1967 snail
Bolicharewia edita n. gen. n. sp.3 Mazaev 2019 snail
 Euomphalina - Omphalotrochidae
Orecopia inopinata n. sp.3
Orecopia inopinata n. sp.3 Mazaev 2019 snail
 Euomphalina - Platyceratidae
Strophostylus fortuitus n. sp.3
Strophostylus fortuitus n. sp.3 Mazaev 2019 snail
 Cycloneritida - Trachyspiridae
Trachydomia shkurkoi3
Trachydomia shkurkoi3 Mazaev 2019 snail
 Bellerophontida - Bellerophontidae
Retispira modesta3, Bellerophon shakhtauensis3, Bellerophon isfarensis3
Retispira modesta3 Girty 1909 snail
Bellerophon shakhtauensis3 Mazaev 2019 snail
Bellerophon isfarensis3 Licharev and Netschajev 1956 snail
 Murchisoniina - Soleniscidae
Soleniscus cf. elegans3
Soleniscus cf. elegans3 Gemmellaro 1887 snail
 Murchisoniina - Portlockiellidae
Permoconcha ferganica3
Permoconcha ferganica3 Licharev 1967 snail
 Murchisoniina - Eotomariidae
Spiroscala elegans n. sp.3
Spiroscala elegans n. sp.3 Mazaev 2019 snail
 Murchisoniina - Phymatopleuridae
Vicnigoria monstrata n. gen. n. sp.3, Tapinotomaria cancellata n. sp.3, Perakella shakhtauensis2, Discotomaria basisulcata3, Eirlysia reticulatiformis n. sp.3, Eirlysia lata3, Eirlysia nodata3, Eirlysia reticulata3
Vicnigoria monstrata n. gen. n. sp.3 Mazaev 2019 snail
Tapinotomaria cancellata n. sp.3 Mazaev 2019 snail
Perakella shakhtauensis2 Mazaev 2019 snail
Discotomaria basisulcata3 Batten 1956 snail
Eirlysia reticulatiformis n. sp.3 Mazaev 2019 snail
Eirlysia lata3 Mazaev 2015 snail
Eirlysia nodata3 Mazaev 2015 snail
Eirlysia reticulata3 Batten 1958 snail
 Murchisoniina - Porcelliidae
"Porcellia (Porcellia) magninodosa" = Porcellia magninodosa3
"Porcellia (Porcellia) magninodosa" = Porcellia magninodosa3 Pan 1985 snail
 Murchisoniina - Gosseletinidae
Peruvispira uralensis n. sp.3, Dictyotomaria balabanovi3, "Globodoma magna" = Nemaspira magna3, Nemaspira skuini4, Stenozone spiralis3, Baylea inclinata1, Ananias bashkiriensis3
Peruvispira uralensis n. sp.3 Mazaev 2019 snail
Dictyotomaria balabanovi3 Mazaev 2019 snail
"Globodoma magna" = Nemaspira magna3 Mazaev 2019 snail
Nemaspira skuini4 Mazaev 2021 snail
Stenozone spiralis3 Mazaev 2019 snail
Baylea inclinata1 Weller 1929 snail
Ananias bashkiriensis3 Mazaev 2019 snail
 Murchisoniina - Murchisoniidae
Bellazona acuta n. sp.
Bellazona acuta n. sp. Mazaev 2019 snail
1Karapunar et al. 2022; 2Mazaev 2019; 3Mazaev 2019; 4Mazaev 2021; 5Mazaev 2023; 6Mazaev 2024; 7Shchedukhin 2022