Oricilla, a new genus referable to the zosterophyllophytes from the late early devonian of northern new Brunswick

1982 ◽  
Vol 37 (3-4) ◽  
pp. 345-359 ◽  
Author(s):  
Patricia G. Gensel
Keyword(s):  
New Brunswick ◽  
New Genus ◽  
Early Devonian

Early Devonian putative gyracanthid acanthodians from eastern CanadaInternational Geoscience Programme (IGCP) Contribution 491, Middle Palaeozoic Vertebrate Biogeography, Palaeogeography, and Climate.

2008 ◽  
Vol 45 (8) ◽  
pp. 897-908 ◽  
Author(s):  
Carole J. Burrow ◽  
Susan Turner ◽  
Sylvain Desbiens ◽  
Randall F. Miller
Keyword(s):  
New Species ◽  
New Brunswick ◽  
New Genus ◽  
Eastern Canada ◽  
Early Devonian ◽  
Single Row ◽  
Thin Walled ◽  
Coal Measures ◽  
A New Species ◽  
Fin Spines

In 1890, Traquair assigned isolated fin spines from the Early Devonian of eastern Canada to a new gyracanthid acanthodian Gyracanthus incurvus , based on the similarity of the distinctive oblique ridges on the spines to the ornament on the large robust fin spines of Gyracanthus spp. from the British Carboniferous Coal Measures. Other similarly ornamented spines from the Early Devonian of Germany were tentatively assigned in 1933 by Gross to the same genus as a new species Gyracanthus? convexus . Based on examination of the type material, as well as newly collected specimens from Emsian sandstones and mudstones of the Gaspé Peninsula, Quebec and the Atholville beds, New Brunswick, we erect a new genus Ankylacanthus gen. nov. for these two species. Spines of the new genus are distinguished by being laterally flattened and thin-walled, with a single row of denticles along one side of the posterior groove, and having thin spine ridges ornamented with low smooth nodes. Other Early to Middle Devonian specimens in South America, Saudi Arabia, and Iran are also tentatively referred to the new genus, which seems to have had an early (Lochkovian–Pragian) cross-north Gondwanan distribution, transferring into Laurentia and spanning Emsian–Eifelian times.

Early Devonian brachiopods from Satun Province, southern Thailand

1999 ◽  
Vol 73 (5) ◽  
pp. 850-859 ◽  
Author(s):  
A. J. Boucot ◽  
L. R. M. Cocks ◽  
P. R. Racheboeuf
Keyword(s):  
New Species ◽  
New Genus ◽  
New Genus And Species ◽  
Benthic Assemblages ◽  
Early Devonian ◽  
Old World ◽  
Southern Thailand ◽  
Biogeographical Region

Twelve brachiopod taxa are described from the Early Devonian (probable early Emsian) Pa Samed Formation of southern Thailand, including the new genus and species Quasiprosserella samedensis (Ambocoeliidae?) and the new species Plectodonta forteyi, Caplinoplia thailandensis, and Clorinda wongwanichi. They are the first undoubted Devonian brachiopods from Thailand. They represent the deeper-water Benthic Assemblages BA4-5, and, although clearly indicative of the Old World Realm, cannot be assigned to a particular biogeographical region. A new undescribed fauna from the contemporary Zebingyi Formation of Burma (Myanmar) is also noted.

Adaptive function and phylogenetic significance of novel skeletal features of a new Devonian microconchid tubeworm (Tentaculita) from Wyoming, USA

2021 ◽  
pp. 1-15
Author(s):  
Michał Zatoń ◽  
Mingxi Hu ◽  
Mercedes di Pasquo ◽  
Paul M. Myrow
Keyword(s):  
Middle Devonian ◽  
New Genus ◽  
Adaptive Strategy ◽  
Phylogenetic Significance ◽  
New Genus And Species ◽  
Adaptive Function ◽  
Faunal Assemblage ◽  
Early Devonian ◽  
Narrow Channels ◽  
Algal Thalli

Abstract A new genus and species of microconchid tubeworm, Aculeiconchus sandbergi n. gen. n. sp., is described from the Givetian (Devonian) Maywood Formation of Cottonwood Canyon, Wyoming, USA. It possesses unique hollow spines of various lengths on the tube underside, a position previously undocumented for these fossils. Like some cyclostome bryozoans possessing basal tubular extensions, the basal spines of Aculeiconchus n. gen. were presumably also used for fixation to flexible substrata, e.g., algal thalli, which is a previously undocumented adaptive strategy in microconchids. Together with other skeletal features, such basal spines could suggest that ‘lophophorate’ microconchids, unlike the other tentaculitoids, might be phylogenetically not as distant from bryozoans as previously thought. The Maywood Formation, which contains a few-millimeters thick, monospecific shell accumulation of the microconchids described herein, records deposition in an estuarine brackish setting within narrow channels that were cut into underlying strata. The microconchids were opportunistic taxa that repeatedly colonized these salinity-stressed estuarine channels, leading to a series of adaptive innovations, including colonization of plant stems during the Early Devonian (Beartooth Butte Formation) and possibly flexible, soft-algal substrata during the Middle Devonian (Maywood Formation, this study). Tectonic quiescence during the Early and Middle Devonian indicates that erosion and subsequent deposition of the Maywood and the underlying Beartooth Butte Formation channels were responses to major eustatic events. Over a span of nearly 30 Myr, channels were cut successively during lowstand conditions and a distinctive faunal assemblage with microconchids tracked marine transgressions into the channels. UUID: http://zoobank.org/394c8b32-d5e7-411e-8e56-6fb9f55bbb8a

The first zosterophyll from the Lower Devonian Rhynie Chert, Aberdeenshire

1991 ◽  
Vol 82 (4) ◽  
pp. 324-332 ◽  
Author(s):  
A. G. Lyon ◽  
Dianne Edwards
Keyword(s):  
Lower Devonian ◽  
New Genus ◽  
New Genus And Species ◽  
Early Devonian ◽  
Precise Positioning ◽  
Cortical Zone ◽  
Lack Of Information ◽  
Rhynie Chert

ABSTRACTFragmentary remains of a vascular sporophyte from the Rhynie Chert are described as a new genus and species, Trichopherophyton teuchansii. The plant, which is characterised by the possession of unicellular spinous hairs, exarch xylem and laterally attached, marginally dehiscent sporangia, is assigned to the Zosterophyllophytina, but lack of information on the arrangement of sporangia prevents its more precise positioning within the subdivision. Unusual features include the combination of circinate tips to axes with almost terete xylem strands, and the lack of a thick-walled outer cortical zone. Associated axes, lacking spinous hairs, but having papillate or rhizoid-like epidermal emergences, are interpreted as likely rhizomes of Trichopherophyton. Features, such as unicellular spinous hairs, rhizoid-like emergences, circinate tipsand parenchymatous cortex are considered in relation to the functioning and growth of aplant inhabiting an early Devonian wetland.

The last pteraspids (Vertebrata, Heterostraci): new material from the Middle Devonian of Alberta and Idaho

2020 ◽  
Vol 94 (4) ◽  
pp. 758-772
Author(s):  
David K. Elliott ◽  
Linda S. Lassiter ◽  
Kathryn E. Geyer
Keyword(s):  
Middle Devonian ◽  
New Genus ◽  
New Combination ◽  
Additional Material ◽  
Lower Paleozoic ◽  
Early Devonian ◽  
Red Sandstone ◽  
Large Channel ◽  
New Material ◽  
Paleozoic Rocks

AbstractThis report documents the last pteraspids, (armored, jawless members of the Heterostraci), which are otherwise only known from the Early Devonian of the Old Red Sandstone Continent. Tuberculate pteraspid heterostracans are described from the Middle Devonian beds of two formations in western North America. The late Givetian Yahatinda Formation of Alberta and British Columbia consists of channels cut into lower Paleozoic rocks and represents deposition in marine to littoral environments. Clavulaspis finis (Elliott et al., 2000a) new combination is redescribed from additional material from the Yahatinda Formation and reassigned to the new genus Clavulaspis because the original genus name is invalid. The Eifelian Spring Mountain beds of Idaho consist of a large channel that represents a clastic-dominated estuarine environment. It contains Scutellaspis wilsoni new genus new species, and the previously described species from the Spring Mountain beds is redescribed and reassigned to Ecphymaspis new genus, which was prompted by new material and a review of the validity of the original genus name. Phylogenetic analysis shows that these three new taxa form part of the derived clade Protaspididae.UUID: http://zoobank.org/9cf09b21-cec1-4ce4-bc2b-658d0b515e10

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.

The Boothiaspidinae, a new agnathan subfamily (Heterostraci, Cyathaspididae) from the late Silurian and Early Devonian of the western United States and the Canadian Arctic

2016 ◽  
Vol 90 (6) ◽  
pp. 1212-1224
Author(s):  
David K. Elliott
Keyword(s):  
United States ◽  
New Genus ◽  
Canadian Arctic ◽  
Western United States ◽  
Early Devonian ◽  
Previous Evidence ◽  
Red Sandstone ◽  
The Family ◽  
Close Relationship ◽  
Three New Species

AbstractThree new species of the new genus Phyllonaspis are described from Early Devonian localities in the western United States. Phyllonaspis laevis, P. serratus, and P. taphensis are broad, flattened cyathaspids with lateral brims and fine dermal ornament, that show a close relationship to the cyathaspids Boothiaspis and Alainaspis from the late Silurian and Early Devonian of the Canadian Arctic. These taxa are here accommodated within the new subfamily Boothiaspidinae within the family Cyathaspididae. This relationship supports previous evidence of faunal connection between these two areas and indicates dispersal around the Old Red Sandstone Continent from a center in the Canadian Arctic. Isolated oral plates allow a reconstruction of the oral cover and increase our knowledge of the range of oral structures in this family.

Canadian Nymphomyiidae (Diptera)

1975 ◽  
Vol 53 (6) ◽  
pp. 853-866 ◽  
Author(s):  
D. Keith McE. Kevan ◽  
Felicity E. A. Cutten-Ali-Khan
Keyword(s):  
New Brunswick ◽  
New Genus ◽  
Systematic Position ◽  
Compound Eyes ◽  
New Genus And Species

A new genus and species, Oreadomyia albertae, is described from the mountains of western Alberta. This differs in several important adult characters from the three previously known genera and species of Nymphomyiidae, particularly in the possession of mouthparts (which are rather unlike those of other Diptera), in the form of the compound eyes, and in the virtually apterous condition. It is placed in a new subfamily, Oreadomyiinae. Further records of Palaeodipteron walkeri Ide are given for New Brunswick. These include examples of the previously unknown, fully alate adults. The systematic position of the Nymphomyioidea is briefly discussed. The group is retained in a separate suborder, Archaeodiptera. An appendix gives a list of arthropods trapped at the same site as O. albertae.

scholarly journals Muenstraia, ein neues Rugosa-Genus (Anthozoa) aus dem Obersilur und Unterdevon

Fossil Record ◽  
2001 ◽  
Vol 4 (1) ◽  
pp. 71-82 ◽  
Author(s):  
D. Weyer
Keyword(s):  
Type Species ◽  
New Genus ◽  
New Taxon ◽  
Early Devonian ◽  
Middle Ordovician ◽  
Traditional Definition ◽  
The Family ◽  
Definition Of

<i>Muenstraia</i> n. gen. ist eine der ältesten ahermatypischen Rugosa (Subordo Cyathaxoniina) und umfasst neben der Typusart <i>Muenstraia franconica</i> n. sp. (Ludlovium, Elbersreuther Orthoceratitenkalk, Frankenwald) drei weitere Arten: <i>Muenstraia squarrosa</i> (Sutherland, 1965) (unteres Ludlovium, Henryhouse-Formation, Oklahoma), <i>Muenstraia</i> sp. (oberes Lochkovium, Yukon-Gebiet), <i>Muenstraia thuringica</i> n. sp. (Pragium, Thüringisches Schiefergebirge und Tafilalt). Die Gattung kann von dem isolierten, nur aus Xinjiang bekannten Protozaphrentis Yü, 1957 des hohen Mittelordoviz abgeleitet werden; wichtige Deszendenten im Ludlovian sind <i>Laccophyllum</i> Simpson, 1900 und Sutherlandinia Weyer, 1972. <br><br> Der Bauplan entspricht dem seit Schindewolf (1931) traditionellen Konzept der Gattung <i>Petraia</i> Münster, 1839, die aber nach Revision (Weyer 2000) ihrer wahren Typusart <i>Petraia decussata</i> Münster, 1839 aus dem oberen Famennium einer anderen Entwicklungsreihe angehört (Neaxoninae Hill, 1981, jetzt Petraiidae Koninck, 1872). Für die dadurch namenlos gewordene Familia "Petraiidae" (etwa sensu Hill 1981) werden die bisher als Synonym ruhenden Protozaphrentidae Ivanovskiy, 1959 verfügbar, denen noch <i>Duncanella</i> Nicholson, 1874 sowie die Sutherlandiniinae Weyer, 1972 und die Ditoecholasmatinae Sutherland, 1965 zugeordnet sind. <br><br> Muenstraia, a new genus of Rugosa (Anthozoa) from the Late Silurian and Early Devonian <br><br> The new taxon, one of the most ancient members of the ahermatypic suborder Cyathaxoniina, includes the type species <i>Muenstraia franconica</i> n. sp. (Ludlovian, Elbersreuth <i>Orthoceratites</i>-Limestone Formation. Upper Franconia, Germany) and three further species: <i>Muenstraia squarrosa</i> (Sutherland, 1965) (lower Ludlovian, Henryhouse Formation, Oklahoma, USA), <i>Muenstraia</i> sp. (upper Lochkovian, Yukon Territories, Canada). <i>Muenstraia thuringica</i> n. sp. (middle/upper Pragian, Tentaculitid Limestone Formation, Thuringian Mountains, Germany, and middle Pragian, Tafilalt, Morocco). The genus descends from the isolated Upper Middle Ordovician <i>Protozaphrentis</i> Yü, 1957, only known from Xinjiang in China; it is the ancestor of two new phylogenetic lines starting in the Ludlovian with <i>Laccophyllum</i> Simpson, 1900, and <i>Sutherlandinia</i> Weyer, 1972. <br><br> Morphology and diagnosis are identical with the (since Schindewolf 1931) traditional definition of the genus <i>Petraia</i> Münster, 1839, which represents according to a revision of its real and Upper Famennian type species <i>Petraia</i> <i>decussata</i> Münster, 1839 (Weyer 2000) another phylogenetic line (Neaxoninae Hill, 1981, now Petraiidae Koninck, 1872). Therefore, the valid name of the family "Petraiidae" (sensu Hill 1981) becomes Protozaphrentidae Ivanovskiy, 1959, which comprise also <i>Duncanella</i> Nicholson, 1874, and both the Sutherlandiniinae Weyer, 1972 and Ditoecholasmatinae Sutherland, 1965. <br><br> doi:<a href="http://dx.doi.org/10.1002/mmng.20010040106" target="_blank">10.1002/mmng.20010040106</a>

scholarly journals Geochronology and lithogeochemistry of granitoid rocks from the central part of the Central plutonic belt, New Brunswick, Canada: implications for Sn-W-Mo exploration

2016 ◽  
Vol 52 ◽  
pp. 125 ◽  
Author(s):  
Reginald A. Wilson ◽  
Sandra L. Kamo
Keyword(s):  
New Brunswick ◽  
Peraluminous Granite ◽  
Early Devonian ◽  
Middle Ordovician ◽  
Metasedimentary Rocks ◽  
Hydrothermal Processes ◽  
Average Abundance ◽  
Granitoid Rocks ◽  
Plutonic Belt ◽  
Plate Type

The central part of the Central plutonic belt in New Brunswick is underlain by numerous plutons of calc-alkaline, foliated and unfoliated granite that intrude Cambrian to Early Ordovician metasedimentary rocks. U-Pb (zircon) dating demonstrates that granites range in age from Middle Ordovician to Late Devonian, although most are late Silurian to Early Devonian. An age of 467 ± 7 Ma has been obtained on the foliated McKiel Lake Granite, whereas unfoliated intrusions yield ages of 423.2 ± 3.2 Ma (Bogan Brook Granodiorite), 420.7 +1.8/-2.0 Ma (Nashwaak Granite), 419.0 ± 0.5 Ma (Redstone Mountain Granite), 416.1 ± 0.5 Ma (Beadle Mountain Granite), 415.8 ± 0.3 Ma (Juniper Barren Granite), 409.7 ± 0.5 Ma (Lost Lake Granite), and 380.6 ± 0.3 Ma (Burnthill Granite). All plutons exhibit mixed arc-like and within-plate geochemical signatures, although the Redstone Mountain and Burnthill granites are dominantly of within-plate type. Trace element data reveal a close overall geochemical similarity between Ordovician and Silurian – Devonian plutons, indicating that all were generated by partial melting of the same crustal source. Late Silurian to Early Devonian plutons mainly comprise biotite and/or muscovite-bearing, peraluminous granite and are considered prospective for granophile-element mineralization. All plutons contain Sn well in excess of the granite global average abundance, and several contain average tin values comparable to productive stanniferous granites elsewhere. The Burnthill, Lost Lake, Beadle Mountain, and Nashwaak granites are geochemically most evolved and enriched in Sn and W. The Burnthill Granite in particular has experienced late-stage hydrothermal processes that have resulted in local enrichments of these elements.

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