scholarly journals Middle Cambrian trilobites (Miaolingian, Ehmaniella Biozone) from the Telt Bugt Formation of Daugaard-Jensen Land, western North Greenland

2020 ◽  
Vol 68 ◽  
pp. 1-14
Author(s):  
John S. Peel
Keyword(s):  
New Species ◽  
North American ◽  
Wood Formation ◽  
Middle Cambrian ◽  
International Standard ◽  
Two New Species ◽  
North Greenland

A small fauna of middle Cambrian trilobites is described from the upper Telt Bugt Formation of Daugaard-Jensen Land, western North Greenland, and the formation is formally defined. Blainiopsis holtedahli and Blainiopsis benthami, originally described from the equivalent Cape Wood Formation of Bache Peninsula, Nunavut, Canada, are documented in an assemblage assigned to the Ehmaniella Biozone (Topazan Stage of North American usage), Miaolingian Series, Wuliuan Stage, of the international standard. Two new species are proposed: Ehmaniella sermersuaqensis and Clappaspis tupeq.

scholarly journals Trilobite fauna of the Telt Bugt Formation (Cambrian Series 2–Miaolingian Series), western North Greenland (Laurentia)

2021 ◽  
Vol 69 ◽  
pp. 1-33
Author(s):  
John S. Peel
Keyword(s):  
New Species ◽  
Wood Formation ◽  
Ellesmere Island ◽  
Middle Cambrian ◽  
Western Usa ◽  
North West ◽  
Type Section ◽  
The North ◽  
First Time ◽  
North Greenland

Trilobites dominantly of middle Cambrian (Miaolingian Series, Wuliuan Stage) age are described from the Telt Bugt Formation of Daugaard-Jensen Land, western North Greenland (Laurentia), which is a correlative of the Cape Wood Formation of Inglefield Land and Ellesmere Island, Nunavut. Four biozones are recognised in Daugaard-Jensen Land, representing the Delamaran and Topazan regional stages of the western USA. The basal Plagiura–Poliella Biozone, with Mexicella cf. robusta, Kochiella, Fieldaspis? and Plagiura?, straddles the Cambrian Series 2–Miaolingian Series boundary. It is overlain by the Mexicella mexicana Biozone, recognised for the first time in Greenland, with rare specimens of Caborcella arrojosensis. The Glossopleura walcotti Biozone, with Glossopleura, Clavaspidella and Polypleuraspis, dominates the succession in eastern Daugaard-Jensen Land but is seemingly not represented in the type section in western outcrops, likely reflecting the drastic thinning of the formation towards the north-west. The Ehmaniella Biozone, with Ehmaniella, Clappaspsis, Blainia and Blainiopsis, is the youngest recognised biozone. The presence of Drumian Stage strata reported elsewhere in North Greenland and adjacent Ellesmere Island has not been confirmed in Daugaard-Jensen Land. Lower beds of the Cass Fjord Formation, which directly overlie the Telt Bugt Formation, are assigned to the Guzhangian Stage. New species: Fieldaspis? iubilaei, Ehmaniella tupeqarfik.

A Lower Cambrian Eotebenna (Mollusca) from Arctic North America

1989 ◽  
Vol 26 (7) ◽  
pp. 1501-1503 ◽  
Author(s):  
John S. Peel
Keyword(s):  
New Species ◽  
North America ◽  
North American ◽  
Lower Cambrian ◽  
Arctic Canada ◽  
Middle Cambrian ◽  
A New Species ◽  
North Greenland

The helcionellacean mollusc Eotebenna Runnegar and Jell, 1976 is described from the Lower Cambrian Henson Gletscher Formation of central North Greenland, part of the Franklinian Basin sequence of Arctic Canada and adjacent northern Greenland. The Henson Gletscher Formation specimens of Eotebenna are the first Lower Cambrian and North American records of a genus originally described from the Middle Cambrian of Australia. A new species, Eotebenna arctica, is described.

Polypleuraspis (Arthropoda, Trilobita) from the middle Cambrian (Miaolingian Series) around Kane Basin (Nunavut and Greenland)

2020 ◽  
Vol 57 (1) ◽  
pp. 16-24
Author(s):  
John S. Peel
Keyword(s):  
British Columbia ◽  
New Species ◽  
North American ◽  
Type Species ◽  
Wood Formation ◽  
Ellesmere Island ◽  
Burgess Shale ◽  
Middle Cambrian ◽  
Shale Formation ◽  
A New Species

Polypleuraspis Poulsen, 1927, originally established on the basis of a single trilobite pygidium from the Cape Wood Formation of Inglefield Land, northwestern Greenland, is redescribed on the basis of material from additional occurrences in the Cape Wood and Telt Bugt formations exposed around Kane Basin in Ellesmere Island (Nunavut) and northern and northwestern Greenland. Polypleuraspis occurs together with Glossopleura Poulsen, 1927 in the Glossopleura walcotti Poulsen, 1927 Biozone of the Delamaran Stage of North American (Laurentian) usage, in middle Cambrian strata (Miaolingian Series) of the Wuliuan Stage. The type species, Polypleuraspis solitaria Poulsen, 1927, is compared with Polypleuraspis insignis Rasetti, 1951 from the Stephen Formation (Burgess Shale Formation) of British Columbia and to a new species from the Telt Bugt Formation of Daugaard-Jensen Land: Polypleuraspis glacialis sp. nov. Polypleuraspis cooperi Robison and Babcock, 2011, from the Spence Shale of Utah of similar age, is assigned to Polypleuraspidella gen. nov.

scholarly journals New species of Yochelcionella (Mollusca: Helcionelloida) from the Lower Cambrian of North Greenland

2004 ◽  
Vol 51 ◽  
pp. 1-9 ◽  
Author(s):  
Christian J. Atkins
Keyword(s):  
New York ◽  
New Species ◽  
Continental Slope ◽  
Lower Cambrian ◽  
Internal Mould ◽  
Middle Cambrian ◽  
Slope Deposits ◽  
Two New Species ◽  
North Greenland

Two new species of the helcionelloid mollusc genus Yochelcionella Runnegar & Pojeta, 1974 are described from Lower Cambrian strata within the Brønlund Fjord Group of central North Greenland. Yochelcionella greenlandica n. sp. is also tentatively identified from continental slope deposits of the Browns Pond Formation of New York and the ‘Anse Maranda Formation’ of Québec. The internal mould of the almost orthoconic Yochelcionella gracilis n.sp. shows a pegma-like fissure between the apex and the snorkel, a feature ortherwise only reported in Y. fissurata Hinz-Schallreuter, 1997 from the Middle Cambrian of Bornholm.

A REVISION OF THE NORTH AMERICAN OMALIINAE (COLEOPTERA: STAPHYLINIDAE) 1. THE GENERA HAIDA KEEN, PSEUDOHAIDA HATCH, AND EUDECTOIDES NEW GENUS

1978 ◽  
Vol 110 (S106) ◽  
pp. 1-20 ◽  
Author(s):  
J. M. Campbell
Keyword(s):  
New Species ◽  
Sierra Nevada ◽  
North American ◽  
New Genus ◽  
The North ◽  
Two New Species

AbstractThe genera Haida Keen and Pseudohaida Hatch are revised and transferred from the tribe Coryphiini to the Anthophagini; the Palearctic genus Eudectus Redten bacher is also placed in the Anthophagini. Eudectus crassicornis LeConte is transferred to the new gents Eudectoides. Two new species are described, Haida bisulcata from the Sierra Nevada in California and H. insulcata from Oregon. Pseudohaida ingrata Hatch is transferred to Subhaida Hatch, a member of the tribe Coryphiini.The mouthparts and antenna are illustrated for each genus and the male aedeagus for each species. A key is included to aid in the identification of all the included taxa.

Lower Cambrian (Branchian) trilobites and biostratigraphy of the Hanford Brook Formation, southern New Brunswick

2000 ◽  
Vol 74 (5) ◽  
pp. 858-878 ◽  
Author(s):  
Stephen R. Westrop ◽  
Ed Landing
Keyword(s):  
New Species ◽  
Nova Scotia ◽  
North America ◽  
New Brunswick ◽  
Lower Cambrian ◽  
Early Cambrian ◽  
The West ◽  
Middle Cambrian ◽  
Sequence Stratigraphic ◽  
Two New Species

The Hanford Brook Formation, one of the classic Cambrian units of Avalonian North America, contains at least eight species of endemic trilobites, including Berabichia milleri Westrop n. sp., that are assigned to seven genera. The vertical succession of faunas is far more complex than has been recognized previously, with each member containing a lithofacies-specific assemblage. These are, in ascending order: a bradoriid-linguloid Association without trilobites in the nearshore St. Martin's Member, a Protolenus Association in dysaerobic siltstones and sandstones of the Somerset Street Member, and a Kingaspidoides-Berabichia Association in hummocky cross-stratified sandstones of the Long Island Member that overlie a parasequence boundary at Hanford Brook. Due to the breakdown of biogeographic barriers in the late Early Cambrian, two new species-based zones, the Protolenus elegans and Kingaspidoides cf. obliquoculatus zones, share trilobite genera with the Tissafinian Stage of Morocco. This generic similarity has been the basis for correlation of this upper Lower Cambrian interval on the Avalon continent with the West Gondwanan lowest Middle Cambrian. However, the clear facies control on the occurrence of genera in the Hanford Brook Formation and the presence of an abrupt faunal break and unconformity at the base of the Tissafinian in Morocco makes this correlation questionable. The Hanford Brook Formation may represent a late Early Cambrian interval unknown in Gondwana. Sequence-stratigraphic criteria even raise the possibility that the Protolenus Association is the biofacies equivalent of Callavia broeggeri Zone faunas of the Brigus Formation of Newfoundland, Nova Scotia and Massachusetts.

Revision of North American Aleiodes (Part 9): the pallidator (Thunberg) species-group with description of two new species (Hymenoptera: Braconidae, Rogadinae)

Zootaxa ◽  
2013 ◽  
Vol 3608 (3) ◽  
pp. 204-214 ◽  
Author(s):  
SCOTT R. SHAW ◽  
PAUL M. MARSH ◽  
MIRANDA A. TALLUTO
Keyword(s):  
New Species ◽  
North American ◽  
Host Record ◽  
Species Group ◽  
Identification Key ◽  
New Host ◽  
New Host Record ◽  
Two New Species ◽  
Host Associations

The Aleiodes pallidator species-group is defined, and an identification key is provided for the five species known to occur in the U.S.A. and Canada. Two new species are described: Aleiodes martini Shaw and Marsh, from Florida, and A. xanthoclypeus Shaw and Marsh, known from Canada and Wisconsin, and reared from Lymantriidae species including Dasychira plagiata (Walker) and Olene grisefacta (a new host record for the genus Aleiodes). Five species are illustrated, and their host associations are summarized.

THE CESTODA OF CANADIAN FISHES: II. THE HUDSON BAY DRAINAGE SYSTEM

1932 ◽  
Vol 7 (1) ◽  
pp. 377-403 ◽  
Author(s):  
ROBERT ARNOLD WARDLE
Keyword(s):  
New Species ◽  
North American ◽  
Drainage System ◽  
North American Species ◽  
Hudson Bay ◽  
Lota Lota ◽  
European Species ◽  
Two New Species ◽  
The Individual

The results are given of a survey of the cestode fauna of several thousand fishes representing thirty species common in the Hudson bay drainage system, particularly in the Hudson bay and in the larger lakes of Manitoba and Saskatchewan. The survey yielded twelve species of adult and seven species of larval cestodes, ten of which were identical with European species, while seven were purely North American. The incidence of infection was high and the individual intensity was heavy. The highest incidence and heaviest intensity occurred among nektonic types such as Hiodon, Leucichthys, Esox, Lucioperca and Salvelinus. Benthonic forms such as Catostomus, Ameiurus, Lota, Acipenser and Coregonus, were found relatively free from infection.The North American species of Cyathocephalus and Diplocotyle are regarded as identical with the European species C. truncatus and D. Olrikii; the species C. americanus Cooper, and Bothrimonus intermedius Cooper are rejected. The triaenophorid common in the area is regarded as Triaenophorus tricuspidatus (Bloch), and two morphae are recognized, microdentatus and megadentatus, the latter equivalent to T. robustus (Olsson). Bothriocephalus cuspidatus Cooper is regarded as comprising three sub-species, cuspidatus, hiodontos and luciopercae. The eubothriid cestode in Lota lota maculosa is regarded as identical with the European E. rugosum, but comprising two morphae, conformatus and deformatus. Two new species of Proteocephalus are described, namely coregoni from Coregonus atikameg, and luciopercae from Lucioperca vitreum.

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