PBDB Collection

Gorny Altai, Chakyr-Azratkan Section, Tekhten Fm. (Ordovician of Russian Federation)

Where: Siberia, Russian Federation (51.0° N, 85.1° E: paleocoordinates 17.7° N, 26.4° E)

• coordinate estimated from map

When: Tekhten Formation, Katian (453.0 - 445.2 Ma)

• Regional stage: Tekhten

Environment/lithology: open shallow subtidal; massive, fine-grained, gray limestone and silty sandstone

• an quartz-feldspar sandstone

Size classes: macrofossils, mesofossils

Primary reference: N. V. Sennikov, O.T. Obut, E. V. Lykova, A. V. Timokhin, T. V. Gonta, R. A. Khabibulina, T. A. Shcherbanenko and T. P. Kipriyanova. 2019. Ordovician Sedimentary Basin and Paleobiotas of the Gorny Altai. 1-183 [B. Kröger/B. Kröger]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 205626: authorized by Björn Kröger, entered by Björn Kröger on 17.10.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Amplocularia detersa, Homotellus sp. Amplocularia detersa Homotellus sp.
Anthozoa
Auloporida - Fletcheriellidae	Fletcheriella altaica Fletcheriella altaica tabulate coral
Heliolitida - Halysitidae	Catenipora elandiensis Catenipora elandiensis tabulate coral
Sarcinulida - Syringophyllidae	Calapoecia anticostensis, Calapoecia lebediensis, Calapoecia altaica Calapoecia anticostensis tabulate coral Calapoecia lebediensis tabulate coral Calapoecia altaica tabulate coral
Sarcinulida - Billingsariidae	Billingsaria sp. Billingsaria sp. Okulitch 1936 tabulate coral
Lichenariida - Lyoporidae	Eofletcheria kovalevskyi, Eofletcheria sokolovi, Nyctopora asratkanensis, Nyctopora altaica, Nyctopora sp. Eofletcheria kovalevskyi tabulate coral Eofletcheria sokolovi tabulate coral Nyctopora asratkanensis tabulate coral Nyctopora altaica tabulate coral Nyctopora sp. Nicholson 1879 tabulate coral
Demospongiae
Hadromerida - Suberitidae	Chaetetes chakyrensis Chaetetes chakyrensis demosponge
Rhynchonellata
Orthida - Orthidae	Sivorthis jabogonicum, Sivorthis cf. friendsvillensis Sivorthis jabogonicum Sivorthis cf. friendsvillensis Cooper 1956
Orthida - Plaesiomyidae	Chaulistomella sp. Chaulistomella sp. Cooper 1956
Orthida - Plectorthidae	Mimella sp. Mimella sp. Cooper 1930
Strophomenata
Strophomenida - Strophomenidae	Strophomena sp. Strophomena sp. Rafinesque and De Blainville 1824
Strophomenida - Leptellinidae	Apatomorpha cf. altaica, Leptellina sp. Apatomorpha cf. altaica Severgina 1960 Leptellina sp. Ulrich and Cooper 1936
Strophomenida - Plectambonitidae	Isophragma cf. extensum Isophragma cf. extensum Cooper 1956
Strophomenida - Aegiromenidae	Aegiromena sp. Aegiromena sp. Havlícek 1961
Strophomenida - Sowerbyellidae	Sowerbyella sp. Sowerbyella sp. Jones 1928
Trilobita
Phacopida - Encrinuridae	Dindymene sp. Dindymene sp. Hawle and Corda 1847 trilobite
Phacopida - Cheiruridae	Ceraurinus frontonis Ceraurinus frontonis trilobite
Trinucleida - Raphiophoridae	Lonchodomas tchakyrensis, Lonchodomas tardus, Lonchodomas sp. Lonchodomas tchakyrensis trilobite Lonchodomas tardus trilobite Lonchodomas sp. Angelin 1854 trilobite
Asaphida - Asaphidae	"Homotelus cf. ardufrontis" = Isotelus, "Homotelus collatatus" = Isotelus "Homotelus cf. ardufrontis" = Isotelus trilobite "Homotelus collatatus" = Isotelus trilobite
Asaphida - Remopleurididae	Remopleurides cf. warburgae, Remopleurides sp. Remopleurides cf. warburgae trilobite Remopleurides sp. Portlock 1843 trilobite