PBDB Collection

Chegitun River, Chukotsk Peninsula (Ordovician of Russian Federation)

Also known as Reef 999

Where: Chukotka, Russian Federation (66.6° N, 171.1° E: paleocoordinates 66.6° N, 171.1° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Chegitun Formation, Ashgill (449.5 - 443.7 Ma)

• group of beds-level stratigraphic resolution

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

• reefal and biostromal limestones

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: A. M. Obut. 1977. Stratigrafiya i fauna ordovika i silura Chukotskogo poluostrova [Stratigraphy and fauna of the Ordovician and the Silurian of the Chukotsk Peninsula]. Trudy Instituta Geologii i Geofiziki, Sibirskoye Otdeleniye 351:3-222 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 80675: authorized by Wolfgang Kiessling, entered by Uta Merkel on 05.05.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

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Rhynchonellata
Pentamerida - Virgianidae	Tcherskidium tchukoticum Tcherskidium tchukoticum
Gastropoda
Murchisoniina - Lophospiridae	"Eotomaria prisca" = Ectomaria prisca, Lophospira sp. "Eotomaria prisca" = Ectomaria prisca Billings 1859 snail Lophospira sp. Whitfield 1886 snail
Euomphalina - Macluritidae	Maclurites cuneata, "Paramaclurites gravis" = Maclurites gravis, "Paramaclurites ovalis" = Maclurites ovalis Maclurites cuneata Whitfield 1878 snail "Paramaclurites gravis" = Maclurites gravis Vostokova 1964 snail "Paramaclurites ovalis" = Maclurites ovalis Vostokova 1964 snail
Euomphalina - Raphistomatidae	Raphistoma sp. Raphistoma sp. Hall 1847 snail
Euomphalina - Lesueurillidae	"Pararaphistoma qualteriatum" = Pararaphistoma qualteriata "Pararaphistoma qualteriatum" = Pararaphistoma qualteriata von Schlotheim 1820 snail
Anthozoa
Stauriida - Disphyllidae	Columnaria sp. Columnaria sp. Goldfuss 1826 horn coral
Stauriida - Acervulariidae	Rhapidophyllum sp. Rhapidophyllum sp. Lindström 1882 horn coral
Sarcinulida - Syringophyllidae	"Coxia canadensis" = Calapoecia, Calapoecia anticostiensis "Coxia canadensis" = Calapoecia tabulate coral Calapoecia anticostiensis Billings 1865 tabulate coral
Favositida - Favositidae	Saffordophyllum ex gr. sibiricum Saffordophyllum ex gr. sibiricum tabulate coral
Lichenariida - Lyoporidae	Nyctopora gunguensis n. sp., Lyopora hyperborea Nyctopora gunguensis n. sp. tabulate coral Lyopora hyperborea tabulate coral
Auloporida - Fletcheriellidae	Fletcheriella gigantica Fletcheriella gigantica tabulate coral
Auloporida - Tetraporellidae	Syringoporinus celebratus, Troedssonites conspiratus, Troedssonites flexibilis Syringoporinus celebratus tabulate coral Troedssonites conspiratus tabulate coral Troedssonites flexibilis tabulate coral
Auloporida - Thecostegitidae	Tetraporella monticuliporoides Tetraporella monticuliporoides tabulate coral
Heliolitida - Halysitidae	Catenipora gubachevi, Catenipora admira, Catenipora perforata n. sp., Catenipora robusta, Catenipora gracilis, "Catenipora parallela" = Eocatenipora parallela Catenipora gubachevi tabulate coral Catenipora admira tabulate coral Catenipora perforata n. sp. tabulate coral Catenipora robusta Wilson 1926 tabulate coral Catenipora gracilis Hall in Foster and Whitney 1851 tabulate coral "Catenipora parallela" = Eocatenipora parallela Schmidt 1858 tabulate coral
Tetradiida - Tetradiidae	Rhabdotetradium sp. Rhabdotetradium sp. Sokolov 1955 tabulate coral
Stromatoporoidea
Stromatoporoidea -	Stromatoporoidea indet. Stromatoporoidea indet. stromatoporoid sponge
Tetradium
-	Tetradium sp. Tetradium sp. Dana 1846