scholarly journals Alethopteris and Neuralethopteris from the lower Westphalian (Middle Pennsylvanian) of Nova Scotia and New Brunswick, Maritime Provinces, Canada

2020 ◽  
Vol 56 ◽  
pp. 111-145
Author(s):  
Carmen Álvarez-Vázquez
Keyword(s):  
United States ◽  
Nova Scotia ◽  
New Brunswick ◽  
Western Europe ◽  
The United States ◽  
Maritime Provinces ◽  
Eastern Canada ◽  
Systematic Revision ◽  
Insufficient Attention ◽  
The North

A systematic revision of Alethopteris and Neuralethopteris from upper Namurian and lower Westphalian (Middle Pennsylvanian) strata of Nova Scotia and New Brunswick, eastern Canada, has demonstrated the presence of eight species: Alethopteris bertrandii, Alethopteris decurrens, Alethopteris cf. havlenae, Alethopteris urophylla, Alethopteris cf. valida, Neuralethopteris pocahontas, Neuralethopteris schlehanii and Neuralethopteris smithsii. Restudy of the Canadian material has led to new illustrations, observations and refined descriptions of these species. Detailed synonymies focus on records from Canada and the United States. As with other groups reviewed in earlier articles in this series, it is clear that insufficient attention has been paid to material reposited in Canadian institutions in the European literature. The present study emphasizes the similarity of the North American flora with that of western Europe, especially through the synonymies.

scholarly journals Paleotethyan faunal/floral evidence in the Mississippian Maritimes Basin of Canada: An overview

2021 ◽  
pp. 1-20
Author(s):  
Pedro Cózar ◽  
Ian D. Somerville
Keyword(s):  
Nova Scotia ◽  
North America ◽  
New Brunswick ◽  
Western Europe ◽  
Statistical Analyses ◽  
Eastern Canada ◽  
Rheic Ocean ◽  
The North ◽  
Logical Connection ◽  
Maritimes Basin

Abstract In this study, middle to late Mississippian microfossil assemblages from the Maritimes Basin of eastern Canada (Nova Scotia, SW Newfoundland, and New Brunswick) are closely compared to those from Western Paleotethys basins. The comparison is focused mainly on foraminifers and calcareous algae. Most foraminifers and algae described from the Maritimes Basin are considered cosmopolitan, and the occurrence in western Europe and northern Africa of taxa previously considered endemic to the North America Realm suggests a close paleobiogeographic relationship. This European/African correlation is further supported by other foraminiferal/algal taxa, the importance of which were previously overlooked, including: Plectogyranopsis ex gr. P. hirosei (Okimura, 1965), Mikhailovella Ganelina, 1956, Koktjubina windsorensis (Mamet, 1970), Polysphaerinella bulla Mamet, 1973, Mstinia Dain in Dain and Grozdilova, 1953, Haplophragmina Reitlinger, 1950, Omphalotis Shlykova, 1969, Pseudolituotuba Vdovenko, 1971, Pseudoendothyra Mikhailov, 1939, Saccamminopsis (Sollas, 1921) Vachard and Cózar, 2003, Kamaenella Mamet and Roux, 1974, and Anthracoporellopsis Maslov, 1956. Some species recorded in the Maritimes Basin have been typically recorded in Britain and Ireland in the southern platform of Laurussia. This implies a connection via the Rhenohercynian Ocean, whereas statistical analyses suggest that Maritimes Basin assemblages are closer to those of the Gondwana platform, which could have been established via the Paleotethys Ocean, and also with terranes northwest of the Variscan Front, in which its most logical connection should be with a still-open Rheic Ocean during the Visean and early Serpukhovian. Those taxa demonstrate a more-or-less continuous faunal and microfloral interchange between the Maritimes Basin and the Western Paleotethys paleobiogeographic realm. Furthermore, the width of the Paleotethys and Rheic oceans separating these regions is not considered excessive, particularly during the late Visean and early Serpukhovian.

scholarly journals A revision of Annularia and Asterophyllites species from the lower Westphalian (Middle Pennsylvanian) of the Maritime Provinces of Canada

2017 ◽  
Vol 53 ◽  
pp. 017-062 ◽  
Author(s):  
Carmen Álvarez-Vázquez ◽  
Robert H. Wagner
Keyword(s):  
Nova Scotia ◽  
New Brunswick ◽  
Western Europe ◽  
Maritime Provinces ◽  
Geographic Ranges ◽  
European Literature ◽  
Scant Attention ◽  
Identical Composition

As part of a larger project to revise the systematics of lower Westphalian floras of Nova Scotia and New Brunswick, the sphenopsid taxa are presently reviewed. We recognize 15 species, of which one, Annularia stopesiae, is new. Detailed synonymy lists allow a refinement of the stratigraphic and geographic ranges of these species. Scant attention has been paid previously to Canadian species in the European literature. For example, Annularia latifolia was described later from Europe as Annularia jongmansii. The identical composition of Westphalian floras from Canada and western Europe is striking.

Studies of Predators of the Balsam Woolly Aphid, Adelges piceae (Ratz.) (Homoptera: Adelgidae): IV. Neoleucopis obscura (Hal.) (Diptera: Chamaemyiidae), an Introduced Predator in Eastern Canada

1957 ◽  
Vol 89 (12) ◽  
pp. 533-546 ◽  
Author(s):  
N. R. Brown ◽  
R. C. Clark
Keyword(s):  
United States ◽  
New Brunswick ◽  
Prince Edward Island ◽  
The United States ◽  
Eastern Canada ◽  
Introduced Predator ◽  
Woolly Aphid ◽  
History Of ◽  
Southern Half ◽  
Adelges Piceae

Early in the present century the balsam woolly aphid, Adelges piceae (Ratz.), was introduced accidentally into North America. The history of its development and spread in the United States and Canada has been described by Balch (1952). At the present time, the adelgid occurs in eastern Canada over approximately the southern half of New Brunswick with an extension of the range in the extreme northeastern part of the Province, throughout Nova Scotia and Prince Edward Island, and in some areas of the southwestern and southeastern parts of Newfoundland.

Phryxe vulgaris (Fall.) (Diptera: Tachinidae), a New Parasite of Pieris rapae (L.) (Lepidoptera: Pieridae) in Canada

1957 ◽  
Vol 89 (12) ◽  
pp. 546-546 ◽  
Author(s):  
Marcel Hudon
Keyword(s):  
United States ◽  
Nova Scotia ◽  
New Brunswick ◽  
Pieris Rapae ◽  
The United States ◽  
European Countries ◽  
Pseudaletia Unipuncta ◽  
Northern European ◽  
Parasitic Larva ◽  
Experimental Plots

In July, 1956, a pupa of the imported cabbageworm, Pieris rapae (L.), was found attached to the undersurface of a corn leaf in experimental plots at St. Jean. After the pupa had been incubated at 75°F. for six months, a dipterous parasitic larva emerged and pupated immediately; a tachinid fly emerged two weeks later. The parasite was identified by Mr. J. G. T. Chillcott, Entomology Division, Ottawa, as Phryxe vulgaris (Fall.). P. vulgaris has been reported as a parasite of Pieris rapae, P. brassicae (L.), P. napi (L.), and Vanessa urticae (L.) from many central and northern European countries (Thompson, 1946, pp. 467-469; 1947, p. 598). Aldrich and Webber (1924), Chittenden (1926), and Schaffner and Griswold (1934) reported this parasite from P. rapae in the United States. P. vulgaris has been reported from Canada only on larvae of the armyworm, Pseudaletia unipuncta (Haw.), in Nova Scotia and New Brunswick (Gibson, 1915, p. 14).

Conflict and Cooperation in Intra-Alliance Nuclear Politics: Western Europe, the United States, and the Genesis of NATO's Dual-Track Decision, 1977–1979

2011 ◽  
Vol 13 (2) ◽  
pp. 39-89 ◽  
Author(s):  
Kristina Spohr Readman
Keyword(s):  
United States ◽  
Soviet Union ◽  
North Atlantic ◽  
Western Europe ◽  
The United States ◽  
Conflict And Cooperation ◽  
The North ◽  
The Soviet Union ◽  
Nuclear Missiles ◽  
East West

On the basis of recently released archival sources from several member-states of the North Atlantic Treaty Organization (NATO), this article revisits the making of NATO's landmark 1979 dual-track decision. The article examines the intersecting processes of personal, bureaucratic, national, and alliance high politics in the broader Cold War context of increasingly adversarial East-West relations. The discussion sheds new light on how NATO tried to augment its deterrent capability via the deployment of long-range theater nuclear missiles and why ultimately an arms control proposal to the Soviet Union was included as an equal strand. The 1979 decision owed most to West German Chancellor Helmut Schmidt's political thought and initiative. Intra-alliance decision-making, marked by transatlantic conflict and cooperation, benefitted from the creativity and agency of West German, British, and Norwegian officials. Contrary to popular impressions, the United States did not truly lead the process.

scholarly journals Filicopsida from the lower Westphalian (Middle Pennsylvanian) of Nova Scotia and New Brunswick, Maritime Provinces, Canada

2019 ◽  
pp. 001-055
Author(s):  
Carmen Álvarez-Vázquez
Keyword(s):  
Nova Scotia ◽  
New Brunswick ◽  
Geographic Distribution ◽  
Western Europe ◽  
Taxonomic Revision ◽  
Detailed Examination ◽  
British Isles ◽  
Maritime Provinces ◽  
Geological Museum ◽  
The Usa

This paper presents a taxonomic revision of filicopsid taxa from the lower to middle Westphalian strata of Nova Scotia and New Brunswick, Maritime Provinces of Canada. Most of the material represents sporadic historical collecting by Geological Survey of Canada (GSC) personnel, and specimens are in the GSC collections in Ottawa. Additional specimens are in the New Brunswick Museum at Saint John, the Fundy Geological Museum at Parrsboro, and the Joggins Fossil Institute at Joggins. Two specimens from outside Canada clarify specific characteristics. The revision involved the detailed examination of 20 adpression (mainly impression) taxa, of which one, Germera brousmicheae, is new. Detailed synonymy lists, with particular focus on records from Canada and the USA, facilitate a refinement of the stratigraphic and geographic distribution of these species. Most of the taxa from the Maritimes are the same as those from other parts of the paleoequatorial belt of Pennsylvanian times. The Maritimes record of filicopsid taxa closely resembles the filicopsid floras of western Europe, most notably the British Isles.

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