PBDB Collection

Brachiopods of the Lower Zlichovian of Royal Creek (Devonian of Canada)

Also known as Sieberella cf. weberi-Nymphorhynchia pseudolivonica unit of Lenz (1968)

Where: Yukon Territory, Canada (64.8° N, 135.2° W: paleocoordinates 1.9° S, 40.5° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Early/Lower Emsian (409.1 - 402.5 Ma)

• Lenz correlates with "some portion of the lower Zlichovian"

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; limestone

• 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 26658: 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

unclassified
-	Peleksygnathus furnishi Peleksygnathus furnishi
Conodonta
-	Pandorinella exigua, Pandorinella steinhornensis Pandorinella exigua conodont Pandorinella steinhornensis conodont
Panderodontida - Panderodontidae	Panderodus unicostatus Panderodus unicostatus Branson and Mehl 1933 conodont
Ozarkodinida - Polygnathidae	Polygnathus dehiscens Polygnathus dehiscens conodont
Rhynchonellata
Spiriferida - Cyrtiidae	cf. Janius cf. sergaensis cf. Janius cf. sergaensis
Spiriferida - Reticulariidae	? Reticulariopsis sp., ? Warrenella sp. ? Reticulariopsis sp. "Reticulariopsis? or Warrenella? sp." ? Warrenella sp. "Reticulariopsis? or Warrenella? sp."
Orthida - Schizophoriidae	? Schizophoria "sp. 1" ? Schizophoria "sp. 1" King 1850
Orthida - Draboviidae	Salopina sp. Salopina sp. Boucot 1960
Orthida - Dalmanellidae	Cortezorthis cf. maclareni Cortezorthis cf. maclareni
Orthida - Mystrophoridae	Mystrophora arctica n. sp. Mystrophora arctica n. sp.
Orthida - Rhipidomellidae	Dalejina "sp. 2" Dalejina "sp. 2" Havlicek 1953
Rhynchonellida - Trigonirhynchiidae	Nymphorhynchia pseudolivonica Nymphorhynchia pseudolivonica
Rhynchonellida - Camarotoechiidae	Linguopugnoides sp. Linguopugnoides sp.
Atrypida - Atrypidae	"? Sibirispira bisulcata n. sp." = Spinatrypina, Spinatrypa "sp. 3", Desquamatia "sp. 2", ? Desquamatia "sp. 3", Atrypa cf. bachatica "? Sibirispira bisulcata n. sp." = Spinatrypina Spinatrypa "sp. 3" Stainbrook 1951 Desquamatia "sp. 2" Alekseeva 1960 ? Desquamatia "sp. 3" Alekseeva 1960 Atrypa cf. bachatica
Atrypida - Carinatinidae	Carinatina spp. Carinatina spp.
Atrypida - Karpinskiidae	"Vagrania" sp. "Vagrania" sp.
Protorthida - Skenidiidae	Skenidioides variabilis n. sp. Skenidioides variabilis n. sp.
Spiriferinida - Cyrtinidae	Cyrtina spp. Cyrtina spp. Davidson 1858 "probably includes as many as five or more species"
Pentamerida - Gypidulidae	Sieberella cf. weberi, ? Gypidula ? boucoti, Gypidula cf. pseudoacutolobata Sieberella cf. weberi ? Gypidula ? boucoti Gypidula cf. pseudoacutolobata
Strophomenata
Strophomenida - Strophochonetidae	Parachonetes macrostriatus Parachonetes macrostriatus Walcott 1884
Strophomenida - Strophodontidae	Megastrophia iddingsi, "aff. Stropheodonta sp." = Strophomena (Strophodonta) Megastrophia iddingsi Merriam 1940 "aff. Stropheodonta sp." = Strophomena (Strophodonta) Hall 1852 n. gen. aff. S.
Strophomenida - Rafinesquinidae	Leptagonia "sp. 1" Leptagonia "sp. 1"
Strophomenida - Leptaenoideidae	Leptaenisca sp. Leptaenisca sp. Beecher 1890
Strophomenida - Douvillinidae	Phragmostrophia cf. merriami Phragmostrophia cf. merriami Harper et al. 1967
Orthotetida - Areostrophiidae	? Drahanostrophia "sp. 3" ? Drahanostrophia "sp. 3"
Craniata
Craniida - Craniidae	? Crania sp., ? Acanthocrania sp. ? Crania sp. Retzius 1781 ? Acanthocrania sp. Williams 1943
Lingulata
Lingulida - Discinidae	? Schizotreta sp. ? Schizotreta sp. Kutorga 1848