Palynology of Oligocene sediments from central British Columbia

1971 ◽  
Vol 49 (11) ◽  
pp. 1885-1920 ◽  
Author(s):  
K. M. Piel
Keyword(s):  
British Columbia ◽  
New Species ◽  
New Genus ◽  
Western Canada ◽  
Subtropical Climate ◽  
Fraser River ◽  
Coast Range ◽  
The West ◽  
Plant Microfossils ◽  
Warm Temperate

Plant microfossils have been recovered from Oligocene sediments which outcrop along the Fraser River in the central interior of British Columbia, Canada. The sediments are composed of interbedded clays, sands, gravels, and lignites which were deposited as a part of an ancestral Fraser River system.The most commonly encountered members of the assemblage are Quercus, Alnus Carya, Liquidambar, Ulmus/Zelkova, Juglans, Pterocarya, Osmunda, and members of the Taxodiaceae, with infrequent occurrences of Engelhardtia, Prosopis, ?Psilotum, Ephedra, and ?Dorstenia. This assemblage suggests a warm temperate to near subtropical climate. A warm polar sea, a lowered Coast Range to the west, and a greater elevation of the Rockies to the east are suggested as a possible explanation for the climate.One new genus and 11 new species have been erected. Several species, including Prosopis quesneli, Diervilla echinata, Triporate B, and Taxodium rousei appear to be restricted to these beds, and may well be good index fossils for the Oligocene of western Canada.

STRUCTURE, STRATIGRAPHY, AND PALEONTOLOGY OF AN UPPER TRIASSIC SECTION ON THE WEST COAST OF BRITISH COLUMBIA

1965 ◽  
Vol 2 (5) ◽  
pp. 442-484 ◽  
Author(s):  
Donald Carlisle ◽  
Takeo Susuki
Keyword(s):  
British Columbia ◽  
Structural Information ◽  
Pillow Lava ◽  
Middle Part ◽  
Upper Triassic ◽  
Coast Range ◽  
Thermal Alteration ◽  
The West ◽  
Coastal British Columbia ◽  
Sedimentary Unit

The highly deformed section at Open Bay is one of the few good exposures of a thick sedimentary unit within the prebatholithic rocks along coastal British Columbia. It provides new structural information relating to emplacement of a part of the Coast Range batholith and it contains an important Upper Triassic fauna unusually well represented. Structural and paleontological analyses are mutually supporting and are purposely combined in one paper.Thirteen ammonite genera from 14 localities clearly substantiate McLearn's tentative assignment to the Tropites subbullatus zone (Upper Karnian) and suggest a restriction to the T. dilleri subzone as defined in northern California.Contrary to an earlier view, the beds are lithologically similar across the whole bay except for variations in the intensity of deformation and thermal alteration. Their contact with slightly older relatively undeformed flows is apparently a zone of dislocation. Stratigraphic thicknesses cannot be measured with confidence, and subdivision into "Marble Bay Formation" and "Open Bay Group" cannot be accepted. Open Bay Formation is redefined to include all the folded marble and interbedded pillow lava at Open Bay. Lithologic and biostratigraphic correlation is suggested with the lower middle part of the Quatsino Formation on Iron River, 24 miles to the southwest. Basalt flows and pillowed volcanics west of Open Bay are correlated with the Texada Formation within the Karmutsen Group.The predominant folding is shown to precede, accompany, and follow intrusion of numerous andesitic pods and to precede emplacement of quartz diorite of the batholith. Structural asymmetry is shown to have originated through gentle cross-folding and emplacement of minor intrusives during deformation.

DESCRIPTION D’UN GENRE NOUVEAU DE KEROPLATIDAE DE L’OUEST NORD-AMÉRICAIN (DIPTERA: MYCETOPHILOIDEA)

1980 ◽  
Vol 112 (6) ◽  
pp. 545-548 ◽  
Author(s):  
Loïc Matile ◽  
J. R. Vockeroth
Keyword(s):  
British Columbia ◽  
New Species ◽  
New Genus

AbstractRobsonomyia reducta, new genus and new species, is described from males collected in British Columbia and California. Characters distinguishing it from other genera of Macrocerinae are discussed.

Lampetra macrostoma, a New Species of Freshwater Parasitic Lamprey from the West Coast of Canada

1982 ◽  
Vol 39 (5) ◽  
pp. 736-747 ◽  
Author(s):  
Richard J. Beamish
Keyword(s):  
British Columbia ◽  
New Species ◽  
West Coast ◽  
Related Species ◽  
Salt Water ◽  
Vancouver Island ◽  
The West ◽  
Large Disc ◽  
Large Numbers ◽  
A New Species

Lampetra macrostoma n.sp., a freshwater parasitic lamprey, is distinguished from related species L. tridentata, L. lethophaga, L. folletti, L. minima, and L. similis by its parasitic habit and very large disc. Other characters distinguishing the species from L. tridentata are its longer prebranchial length, large eye, weakly pigmented velar tentacles, and its ability to remain in freshwater. The recently metamorphosed form readily survives in freshwater and probably is non-anadromous even though it can survive in salt water. The new species has been discovered in two lakes on Vancouver Island, British Columbia, Canada, where it attacks large numbers of resident salmonids. Because of its ability to survive and feed in freshwater, it poses a definite threat to freshwater fishes.Key words: lamprey, new species, non-anadromous lamprey, salmonid parasitism

Helmolepis cyphognathus, sp. nov., a new platysiagid actinopterygian from the Lower Triassic Sulphur Mountain Formation (British Columbia, Canada)

2005 ◽  
Vol 42 (1) ◽  
pp. 25-36 ◽  
Author(s):  
Andrew G Neuman ◽  
Raoul J Mutter
Keyword(s):  
British Columbia ◽  
New Species ◽  
Central Europe ◽  
Middle Triassic ◽  
Lower Triassic ◽  
Western Canada ◽  
Early Triassic ◽  
East Greenland ◽  
The Family ◽  
A New Species

A new species of stem actinopterygian, Helmolepis cyphognatus sp. nov., is reported from the Lower Triassic Sulphur Mountain Formation of western Canada (probably Smithian). This taxon differs from the only other known Early Triassic platysiagid, H. gracilis from the Lower Triassic Wordie Creek Formation of East Greenland (Griesbachian), in counts of branchiostegal rays, shape of the maxilla, shape (and possibly counts) of extrascapulars, and the size ratio of major opercular bones. In spite of their overall unfavorable preservation, the numerous available specimens amend our knowledge of the little known genus Helmolepis considerably: it has become evident that the morphology of Helmolepis cyphognatus sp. nov. comes closest to Platysiagum minus (Middle Triassic Besano Formation of central Europe). This study suggests placement of the two genera in the family Platysiagidae. Investigation of this new species also shows certain features of the cheek and the caudal fin are more primitive than previously believed, whereas the snout region is probably derived but of yet uncertain affinities in Helmolepis.

Terebellidae (Polychaeta) from the Northeast Pacific Ocean

1980 ◽  
Vol 37 (1) ◽  
pp. 20-40 ◽  
Author(s):  
Karl Banse
Keyword(s):  
British Columbia ◽  
New Species ◽  
Pacific Ocean ◽  
New Record ◽  
Type Species ◽  
New Genus ◽  
New Records ◽  
Northeast Pacific ◽  
The Antarctic ◽  
Northeast Pacific Ocean

Betapista dekkerae, new genus and new species, is described. The generic diagnoses for Laphania and Scionides are improved after inspection of the holotypes of the type species. Eupolymnia heterobranchia (syn., E. crescentis) is redescribed. Additions to the descriptions, based on study of type material, are made for Laphania boecki (new record, Northeast Pacific), Neoamphitrite robusta (syn., Scionides dux), Neoleprea californica and N. spiralis, Pista brevibrunchiata (new record, British Columbia [B.C.], Washington [WA], Japan) and P. fratrella, and Polycirrus californicus (new record, B.C., WA, syn., P. perplexus). Other additions to the descriptions are provided for Amaeana occidentalis (new record, B.C.) and Pista cristata. Two further Pista species (one from the Skagerrak) and five Polycirrus species are charcterized but not named. Other new records are Lanassa venusta venusta (B.C.), Lysilla loveni, and Neoleprea japonica (the two latter for Northeast Pacific). Lysilla pacifica, Pista fasciata, and P. fratrella are shown not to be members of the fauna of British Columbia and Washington. Presumably, neither is Polycirrus caliendrum. New observations on the types of the Antarctic Polycirrus kerguelensis and Ereutho kerguelensis are noted.Key words: Betapista n.g., Neoleprea, new records, Northeast Pacific, Pista, Polycirrus, Scionides, Terebellidae

RECORDS OF ADDITIONAL EUROPEAN SAWFLIES IN AMERICA AND DESCRIPTIONS OF NEW VARIETIES OF NORTH AMERICAN SPECIES

1932 ◽  
Vol 64 (11) ◽  
pp. 247-251 ◽  
Author(s):  
Herbert H. Ross
Keyword(s):  
British Columbia ◽  
North American ◽  
West Coast ◽  
River Valley ◽  
North American Species ◽  
Alnus Rubra ◽  
Fraser River ◽  
The West ◽  
New Varieties ◽  
The Common

This species has apparently been introduced in recent years and become established as a pest of the common native alder (Alnus rubra) on the west coast of Washington and British Columbia, particularly in the lower part of the Fraser River Valley. The earliest specimens I have at hand are a series of 15 females taken at White Rock, B. C., June 28, 1929, collected by Mr. G. Beall.

A NEW GENUS OF CONIFEROPHAGOUS TORTRICIDAE, AND TWO NEW SPECIES (LEPIDOPTERA: TORTRICIDAE)

1978 ◽  
Vol 110 (6) ◽  
pp. 569-574 ◽  
Author(s):  
Akira Mutuura
Keyword(s):  
British Columbia ◽  
New Species ◽  
New Brunswick ◽  
Type Species ◽  
New Genus ◽  
Female Genitalia ◽  
Male And Female ◽  
Two New Species

AbstractThe new genus Archepandemis, with type-species Parapandemis borealis Freeman, 1965, is described. Two new species, A. coniferana from British Columbia and Alberta and A. morrisana from New Brunswick, are distinguished from A. borealis by characters of maculation and especially of male and female genitalia.

A New Genus and New Species of Deltocephaline Leafhoppers from Canada and Alaska (Homoptera: Cicadellidae)

1954 ◽  
Vol 86 (12) ◽  
pp. 548-553 ◽  
Author(s):  
Bryan P. Beirne
Keyword(s):  
New Species ◽  
New Genus ◽  
Western Canada ◽  
Two New Species ◽  
A New Species

The following are descriptions of a new genus and two new species of leafhoppers allied to Streptanus Rib. and Macustus Rib. that have been found in the Subarctic of Alaska and northwest Canada, of a new species of Hardya Edw. from the same region, and of the two new species of Hebecephalus DeL. from the mountains of Western Canada.

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