PBDB Collection

Brachiopods of the Pridolian of Royal Creek (Silurian of Canada)

Also known as Cryptatrypa triangularis fauna

Where: Yukon Territory, Canada (64.8° N, 135.2° W: paleocoordinates 7.2° N, 46.1° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Pridoli (423.0 - 419.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: basinal (); black limestone and black shale

• Interpretation is of a trough surrounded by shallow carbonate platforms. Sections 1,2,4, and 5 are essentially from the former environment and section 3 from the latter.

•SEP environmental call based on given info and regional context

• "...shallow water, light colored carbonates, of which section 3 is a tongue, grade rapidly westward into deep water dark shales and limestones. Shelly faunas are present in the limestones, and graptolites are found in the platy, black shales. Both limestones and shales are highly organic, thus accounting for the black color of the limestones. The dark limestone bands are relatively thin (3-5 m thick) while the shales range from 2 to 20 m in thickness. In addition the relative proportions of shale and carbonates change rapidly westward..."

Size class: macrofossils

Collection methods: Abundances are given (table 1). See PBDB collections 24931, 24932, and 24933 for Lower Lochkovian, Upper Lochkovian, and Pragian lists, taken from Lenz (1999, PBDB ref. 6991), but evidently extracted from this monograph. Systematic treatment is spread over two monographs (PBDB refs. 7341 and 7342), but entire lists are given in this part (ref. 7341).

Primary reference: A. C. Lenz. 1977. Upper Silurian and Lower Devonian brachiopods of Royal Creek, Yukon Canada. Part 1. Orthoida, Strophomenida, Pentamerida, Rhynchonellida. Palaeontographica Abteilung A 159(1-3):37-109 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 26657: authorized by Michael Foote, entered by Michael Foote on 21.10.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Author includes brachiopods and some biostratigraphically useful fossils. Also present in the sections are Pelecypoda, Gastropoda, Bryozoa, Rugosa, Tabulata, Ostracoda, Trilobita, Porifera, Echinodermata, Conodonta, and Graptolithina, but information is not generally given as to occurrence of these additional elements in particular collections.

Show authors, comments, and common names

Conodonta
Ozarkodinida - Spathognathodontodae	"Ozarkodina excavata" = Wurmiella excavata "Ozarkodina excavata" = Wurmiella excavata Branson and Mehl 1933 conodont
Ozarkodinida -	"Ozarkodina remscheidensis" = Nicollidina remscheidensis "Ozarkodina remscheidensis" = Nicollidina remscheidensis Ziegler 1960 conodont
Pterobranchia
Graptoloidea - Monograptidae	Monograptus ex gr. transgrediens Monograptus ex gr. transgrediens Pemer 1899 graptolite
Rhynchonellata
Spiriferida - Delthyrididae	Delthyris sp., Howellella sp., Howellella aff. laeviplicata Delthyris sp. Dalman 1828 Howellella sp. Kozlowski 1946 Howellella aff. laeviplicata
Spiriferida - Ambocoeliidae	Metaplasia lenzi Metaplasia lenzi
Protorthida - Skenidiidae	Skenidioides variabilis n. sp. Skenidioides variabilis n. sp.
Pentamerida - Parastrophinidae	Anastrophia sp. Anastrophia sp. Hall 1867
Pentamerida - Pentameridae	? Kirkidium sp. ? Kirkidium sp. Amsden et al. 1967
Pentamerida - Subrianidae	Conchidium sp. Conchidium sp. Oehlert 1887
Atrypida - Septatrypidae	"Atrypella sp." = Atrypoidea "Atrypella sp." = Atrypoidea Mitchell and Dun 1920
Atrypida - Glassiidae	"? Cryptatrypa sp." = Glassia, "Cryptatrypa triangularis" = Glassia, "Cryptatrypa fahraeusi" = Glassia "? Cryptatrypa sp." = Glassia Davidson 1881 "Cryptatrypa triangularis" = Glassia "Cryptatrypa fahraeusi" = Glassia
Atrypida - Atrypinidae	Spirigerina sp., Gracianella cryptumbra, Gracianella lissumbra Spirigerina sp. d'Orbigny 1849 Gracianella cryptumbra Gracianella lissumbra Johnson and Boucot 1967
Athyridida - Anoplothecidae	Coelospira pusilla Coelospira pusilla Hisinger 1837
Athyridida - Nucleospiridae	Nucleospira sp. Nucleospira sp. Hall 1859
Athyridida - Meristidae	? Merista sp. ? Merista sp. Suess 1851
Athyridida - Rhynchospirinidae	Rhynchospirina sp. Rhynchospirina sp. Schuchert and LeVene 1929
Rhynchonellida - Machaerariidae	Ferganella sp. Ferganella sp. Nikiforova 1937
Rhynchonellida - Rhynchotrematidae	Stegerhynchus sp. Stegerhynchus sp. Foerste 1909
Rhynchonellida - Trigonirhynchiidae	Ancillotoechia radvani, Ancillotoechia cf. ancillans, Rhynchotreta aff. cuneata Ancillotoechia radvani Ancillotoechia cf. ancillans Barrande 1879 Rhynchotreta aff. cuneata Dalman 1828
Orthida - Rhipidomellidae	Dalejina "sp. 1" Dalejina "sp. 1" Havlicek 1953
Orthida - Dicoelosiidae	Dicoelosia cf. nitida Dicoelosia cf. nitida changed from "Dicaelosia"
Orthida - Dalmanellidae	Isorthis sp., Tyersella jubar, Resserella "sp. 1", Resserella "sp. 2" Isorthis sp. Kozlowski 1929 Tyersella jubar Resserella "sp. 1" Bancroft 1928 Resserella "sp. 2" Bancroft 1928
Orthida - Draboviidae	Salopina submurifer Salopina submurifer
Orthida - Schizophoriidae	Schizophoria "sp. 2" Schizophoria "sp. 2" King 1850
Orthida - Hesperorthidae	Ptychopleurella sp., Dolerorthis "sp. 2" Ptychopleurella sp. Schuchert and Cooper 1931 Dolerorthis "sp. 2" Schuchert and Cooper 1931
Strophomenata
Strophomenida - Aegiromenidae	Aegiria mariaformis n. sp. Aegiria mariaformis n. sp.
Orthotetida - Areostrophiidae	Aesopomum prongsi Aesopomum prongsi
Orthotetida - Chilidiopsidae	"? Coolinia sp." = Fardenia (Coolinia) "? Coolinia sp." = Fardenia (Coolinia) Bancroft 1949