Le bivalve Montanaria Spriestersbach, 1909: habitat et morphologie d'une nouvelle espèce emsienne de la Formation de York River de Gaspé, Québec

1994 ◽  
Vol 31 (2) ◽  
pp. 381-392 ◽  
Author(s):  
Sylvain Desbiens
Keyword(s):  
North America ◽  
Middle Devonian ◽  
Western Europe ◽  
Fine Sand ◽  
Intermediate Level ◽  
York River ◽  
Iapetus Ocean ◽  
Taxonomic Affiliation ◽  
First Time ◽  
Mature Population

A new Emsian species of the Rhenish bivalve Montanaria Spriestersbach, 1909 is described from specimens that were collected in the York River Formation, Gaspé area. It is reported for the first time in America. This endobenthic species, M.honquedoensis n.sp., developed communities in areas of fine sand embayments or in brackish lagoons related to a sedimentation in a deltaic environment. The acidic benthos in which it lived corroded deeply the beak in the mature population. The diffusion of Montanaria towards Gaspé is explained by the restricted dimension of the Emsian Iapetus Ocean, and it coincides with the bivalve migration, from the western Europe to the northeast of North America, from Early to Middle Devonian. The monogenic family of Montanariidae is revised and its taxonomic affiliation is discussed. The dental and ligamental features of Montanaria indicate an intermediate level of organization between primitive actinodontoids and heterodonts. [Journal Translation]

Procteria (Pachyprocteria) vermifera n. sp., an unusual Hicetes-bearing species of tabulate coral from the lower Eifelian of the Gaspé Sandstones Group, Rimouski County (Quebec, Canada)

2011 ◽  
Vol 48 (12) ◽  
pp. 1530-1542 ◽  
Author(s):  
Yves Plusquellec ◽  
Sylvain Desbiens ◽  
Rémy Gourvennec
Keyword(s):  
New Species ◽  
North America ◽  
Central Area ◽  
York River ◽  
Proximal Side ◽  
Unusual Association ◽  
Tabulate Coral ◽  
First Time

Procteria (Pachyprocteria) vermifera n. sp. is described from the upper part of the York River Formation (Gaspé Sandstones Group), lower Eifelian (brachiopod Amphigenia Zone), Rimouski County (Quebec, Canada). This new species is considered part of a new lineage of Pachyprocteria characterized by the presence of interstitial corallites. This study reveals for the first time that the granules on the lower (proximal) side are distributed irregularly, their density being higher in the central area of this side than at the periphery. The unusual association of the tabulate coral Procteria (Pachyprocteria) with the “worm” Hicetes is pointed out. The record of the new species adds to the known paleogeographic distribution of Pachyprocteria in North America (Laurussia).

The Aftermath

Studying Ida ◽  
2018 ◽  
pp. 91-98
Author(s):  
Sheila Skaff
Keyword(s):  
Los Angeles ◽  
North America ◽  
Western Europe ◽  
Los Angeles Times ◽  
Black And White ◽  
The World ◽  
Telluride Film ◽  
Academy Award ◽  
First Time ◽  
World Premiere

This chapter mentions Paweł Pawlikowski's acceptance speech after Ida won the 2015 Academy Award for Best Foreign Language Film, which was the first time that a film from Poland had won the award. It analyses Pawlikowski's description of Ida as a film in black-and-white that stresses the need for contemplation and silence from the world. It also recounts Ida's world premiere at the Telluride Film Festival in Telluride, Colorado on August 30, 2013 and its rise to recognition by 2014. The chapter details how Ida received positive reviews in Western Europe and North America from the time of its premiere. It looks at Kenneth Turan's review of Ida in The Los Angeles Times, which described Ida as a film of exceptional artistry whose emotions are as potent and persuasive as its images are indelibly beautiful.

The genus Porpidia in northern and western Europe, with special emphasis on collections from the British Isles

2005 ◽  
Vol 37 (1) ◽  
pp. 1-35 ◽  
Author(s):  
Alan M. FRYDAY
Keyword(s):  
New Species ◽  
North America ◽  
Secondary Metabolite ◽  
Western Europe ◽  
Distinct Species ◽  
New Combination ◽  
Secondary Metabolite Production ◽  
British Isles ◽  
Metabolite Production ◽  
First Time

Four new species and one new forma are described in the genus Porpidia. Porpidia flavocruenta Fryday & Buschbom, a member of the P. macrocarpa group that has previously been overlooked for ‘P. flavocoerulescens’, is reported from Austria, the British Isles, Scandinavia, Iceland, and North America (Alaska); P. islandica Fryday, Knoph & Hertel is reported from Iceland and Scotland; and P. pachythallina Fryday and P. striata Fryday from the British Isles only. The sorediate morph of P. superba is described as P. superba f. sorediata Fryday, known from the British Isles, Sweden, Svalbard, and North America (Maine). Variation in P. macrocarpa is discussed and the new combination P. macrocarpa f. nigrocruenta (Anzi) Fryday made. Secondary metabolite production is discussed and the variation in the production of chemosyndromes considered to be more variable than previously reported. The position of several other taxa is discussed and P. herteliana and P. musiva are reduced to synonymy with P. cinereoatra, P. calcarea to synonymy with P. superba, and P. diversa to synonymy with P. contraponenda. However, P. grisea and P. lowiana are provisionally maintained as distinct species from P. tuberculosa and P. cinereoatra respectively, although P. grisea has not been correctly recorded from the British Isles. The typification of Spiloma tuberculosa Sm., the basionym of Porpidia tuberculosa, is discussed and a lectotype proposed; the new combination Porpidia rugosa (Taylor) Coppins & Fryday is made and shown to be the correct name for P. glaucophaea; and Porpidia flavicunda (Ach.) Gowan is used for the esorediate taxon usually known as Porpidia flavocoerulescens because this epithet is to be proposed for rejection as it is considered to be of confused usage. Porpidia hydrophila is shown to be a member of the P. albocaerulescens group. Porpidia lowiana, P. nadvornikiana, and P. thomsonii are recorded for the first time from the British Isles, and P. macrocarpa f. nigrocruenta confirmed as a British taxon. Notes and a key are provided for all the species of the genus that have been reported from the area.

scholarly journals Tarsal morphology of ischyromyid rodents from the middle Eocene of China gives an insight into the group’s diversity in Central Asia

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Łucja Fostowicz-Frelik ◽  
Sergi López-Torres ◽  
Qian Li
Keyword(s):  
North America ◽  
Western Europe ◽  
Middle Eocene ◽  
Northern China ◽  
Taxonomic Diversity ◽  
Late Eocene ◽  
Modern Aspect ◽  
Tarsal Bones ◽  
Mammal Assemblages ◽  
First Time

AbstractIschyromyids are a group of large rodents with the earliest fossil record known from the late Paleocene (Clarkforkian) of North America; they are considered the earliest fossil representatives of Rodentia of modern aspect. Ischyromyids dominated early Paleogene small-mammal assemblages of North America and in the latest Paleocene migrated to western Europe and to Asia; in the latter they survived only to the beginning of the late Eocene, but were never abundant. Here we describe for the first time the calcanei of ischyromyids from the early middle Eocene of the Erlian Basin in Nei Mongol, northern China. These calcanei document the existence of three species. The morphology of the studied tarsal bones overall suggests ambulatory locomotion for these animals (‘slow cursors’), similar to that of the coypu and porcupines, but one form shows more marked cursorial capabilities. These differences show that Chinese ischyromyids, although rare, had attained greater taxonomic diversity by the middle Eocene in Nei Mongol than estimated from dental remains. We also address the question of the morphological and ecological divergence of these ischyromyids in relation to their North American counterparts, as well as the issue of a direct dispersal route from North America to Asia in the early Eocene.

The palaeogeographic position of the Lake District in the early Ordovician

1989 ◽  
Vol 126 (1) ◽  
pp. 9-17 ◽  
Author(s):  
R. A. Fortey ◽  
R. M. Owens ◽  
A. W. A. Rushton
Keyword(s):  
North America ◽  
Lake District ◽  
The South ◽  
Early Ordovician ◽  
Iapetus Ocean ◽  
First Time

AbstractThe early Ordovician was a time of maximum continental separation and hence a time when faunal evidence can be used to assess palaeogeography in a critical way. We summarize the known trilobite occurrences (18 genera) from the Arenig–Llanvirn of the Lake District, and record some genera for the first time. Maps of the distribution of some of these forms are given. All genera except Cyclopyge were confined to the Gondwana continent at the time, and some are known from many localities; and two species are widespread in England, Wales, France, Iberia and Bohemia. The fauna is entirely distinct from those of Scandinavia and North America. All the palaeontological evidence points to the Lake District being adjacent to Ordovician Gondwana. In the earlier Ordovician it is not reasonable to suggest that the Iapetus Ocean lay to the south of the Lake District as did Allen (1987).

Chains to the West: Markov's Theory of Connected Events and Its Transmission to Western Europe

2006 ◽  
Vol 19 (4) ◽  
pp. 561-589 ◽  
Author(s):  
David Link
Keyword(s):  
Twentieth Century ◽  
North America ◽  
English Translation ◽  
Western Europe ◽  
Russian Mathematician ◽  
The West ◽  
Experimental Application ◽  
First Time ◽  
Empirical Material

ArgumentAt the beginning of the twentieth century, the Russian mathematician Andrey A. Markov extended the laws of the calculus of probability to trials that were dependent on each other, purely theoretically. In two articles from 1913, which are presented here in English translation, he applied his theory for the first time to empirical material, namely text. After a presentation of Markov's methods, results, and possible inspirations, the introduction investigates the dissemination of his ideas to Western Europe and North America in detail. The experimental application of his method to various types of text finally determines its scope.

West coast North America record of the Paleogene marine stromboid gastropodRimellaand paleobiogeography of the genus

2013 ◽  
Vol 87 (5) ◽  
pp. 826-841 ◽  
Author(s):  
Richard L. Squires
Keyword(s):  
North America ◽  
West Coast ◽  
Western Europe ◽  
Middle Eocene ◽  
Late Eocene ◽  
New Combination ◽  
The West ◽  
Early Oligocene ◽  
Early Paleocene ◽  
First Time

The west coast of North America record of the shallow-marine stromboid gastropod genusRimellaAgassiz, 1841 is restudied for the first time in 90 years. This genus comprises a small group of Paleogene gastropods characterized by having an ornamented fusiform shell, a posterior canal ascending the spire, and simple (non-flared) outer lip.Rimella, whose familial ranking has been inconsistent, is placed here in family Rostellariidae Gabb, 1868, subfamily Rimellinae Stewart, 1927.EctinochilusCossmann, 1889;MacilentosClark and Palmer, 1923;VaderosClark and Palmer, 1923; andCowlitziaClark and Palmer, 1923 are recognized here as junior synonyms ofRimella. Four species are recognized from the west coast of North America: early to middle EoceneRimella macilentaWhite, 1889; early EoceneRimella oregonensisTurner, 1938; middle to late EoceneRimella supraplicata(Gabb, 1864) new combination, of whichRostellaria canaliferGabb, 1864,Cowlitizia washingtonensisClark and Palmer, 1923, andCowlitzia problematicaHanna, 1927 are recognized here as junior synonyms; and late EoceneRimella elongataWeaver, 1912.Rimellawas a warm-water gastropod whose earliest known record is of early Paleocene (Danian) age in Pakistan. Other than the west coast of North America,Rimellais found in Eocene strata in western Europe, Turkey, Egypt, Pakistan, southeastern United States, Panama, Peru, and, to a lesser degree, in Trinidad, Columbia, Java, and New Zealand. Global cooling near the end of the Eocene greatly diminished the genus. Its youngest known occurrences are of early Oligocene age in Germany, Italy, England, and Peru.

Distribution of Tylothyris (Brachiopoda) and its occurrence in the Traverse Group (Middle Devonian) of Michigan

1987 ◽  
Vol 61 (3) ◽  
pp. 494-507 ◽  
Author(s):  
Frederick S. Rogers ◽  
Charles W. Pitrat
Keyword(s):  
North America ◽  
Middle Devonian ◽  
Michigan Basin ◽  
Median Septum ◽  
First Time ◽  
Area Of Origin

The septate, lamellose, spiriferacean brachiopod genus Tylothyris North, 1920, is considered to be a delthyridid of the subfamily Tylothyridinae Carter, 1972. Herein, the diagnosis of the Tylothyridinae is emended to include forms with micro-ornament, and with a myophragm or median septum on the floor of the pedicle valve.For the first time, Tylothyris is formally reported from the Traverse Group rocks of Michigan, Givetian through early Frasnian in age. Two species of the genus occur in the Traverse Group. The first, T. subvaricosa (Hall and Whitfield, 1872), previously described by Stainbrook (1943) from the Cedar Valley Limestone of Iowa, is also known from the Milwaukee Formation of Wisconsin and the Mineola Limestone of Missouri. Tylothyris randalia Stainbrook, 1943, also from the Cedar Valley Limestone, is considered to be synonymous with T. subvaricosa. In the Traverse Group, T. subvaricosa occurs in the Bell Shale, Rockport Quarry Limestone, Ferron Point Formation, Genshaw Formation, Alpena Limestone, Gravel Point Formation, Norway Point Formation, and Potter Farm Formation. The second species, T. rockportensis n. sp., occurs only in the Rockport Quarry Limestone, and appears to be endemic to the Michigan Basin.Tylothyris is considered to have originated in the Illinois area during the late Eifelian, then to have migrated to the Michigan area by the early Givetian. With the onset of Taghanic Onlap during the late Givetian, the genus dispersed from its Illinois–Michigan area of origin, becoming distributed across much of North America during the Frasnian and Famennian, and becoming essentially cosmopolitan in distribution during the Tournaisian. Tylothyris apparently became extinct by the end of the Visean.

Devonian faunas of the Sainte-Hélène Island breccia, Montréal, Quebec, Canada

1986 ◽  
Vol 23 (12) ◽  
pp. 2047-2056 ◽  
Author(s):  
A. J. Boucot ◽  
Carlton E. Brett ◽  
W. A. Oliver Jr. ◽  
Robert B. Blodgett
Keyword(s):  
New York ◽  
North America ◽  
Middle Devonian ◽  
The South ◽  
Rock Types ◽  
Acadian Orogeny ◽  
First Time

Early and Middle Devonian fossils from the Sainte-Hélène Island diatreme breccias are criticially reviewed and analyzed stratigraphically. They include marine benthic faunas of Helderberg, Oriskany, Schoharie, Onondaga, and Hamilton ages. Brachiopods are the most abundant fossils; significant corals are also present and are discussed for the first time. These diatreme faunas from the Montréal region significantly augment the lithofacies–paleogeographic data known for this part of North America. For the first time, attention is paid to the lithologies in which the Sainte-Hélène Island faunas are embedded, as clues to the regional relations of these rock types. The absence of Silurian specimens is ascribed to nondeposition similar to that known in the Albany, New York, region to the south. The presence of marine, Hamilton age rocks and fossils at Montréal shows that the Acadian Orogeny and uplift into the nonmarine environment did not affect the area until at least some time in the Hamilton.

First recognition of the genus Verneuilia Hall and Clarke (Brachiopoda, Spiriferida) from North America (west-central Alaska)

1994 ◽  
Vol 68 (6) ◽  
pp. 1240-1242 ◽  
Author(s):  
Robert B. Blodgett ◽  
J. G. Johnson
Keyword(s):  
New Species ◽  
North America ◽  
Middle Devonian ◽  
Geographic Range ◽  
Good Evidence ◽  
Systematic Relationship ◽  
West Central ◽  
Internal Structures ◽  
First Time ◽  
A New Species

The brachiopod genus Verneuilia Hall and Clarke, 1893, is recognized for the first time in North America, where it is represented by a new species described here, V. langenstrasseni. This occurrence not only extends the geographic range of the genus, but also the lower age and stratigraphic limit into the Eifelian (early Middle Devonian). Previously, the oldest known species was the type, V. cheiropteryx d'Archiac and de Verneuil, 1842, from the Givetian (late Middle Devonian) of Germany. Internal structures of V. langenstrasseni n. sp. are similar to those of genera in the ambocoeliid subfamily Rhynchospiriferinae, providing the first good evidence of a systematic relationship.

Sign in / Sign up

Export Citation Format

Share Document