scholarly journals IV.—Descriptions of New Species and of a New Genus of Polyzoa from the Palæozoic Rocks of North America

1875 ◽  
Vol 2 (1) ◽  
pp. 33-38 ◽  
Author(s):  
H. Alleyne Nicholson
Keyword(s):  
New Species ◽  
North America ◽  
New Genus ◽  
Convex Surfaces ◽  
Cylindrical Tubes

Polyzoary (?) forming a simple, flattened, unbranehed, two-edged frond, with sub-parallel sides, consisting of two series of cells, the bases of which rest upon opposite sides of a thin longitudinally-striated central membrane or laminar axis, from which they pass obliquely outwards in opposite directions. The cells open in longitudinal rows on the two flat or slightly convex surfaces of the frond, and have the form of more or less cylindrical tubes, which are septate or are divided transversely by a series of well-developed tabulæ. In the only species known the cells of a few of the median rows of the frond are straight, but those of the lateral rows are oblique. Cell-mouths unknown.

Kochiella Poulsen, 1927, and Hadrocephalites new genus (Trilobita: Ptychopariida) from the early Middle Cambrian of western North America

2002 ◽  
Vol 76 (1) ◽  
pp. 76-94 ◽  
Author(s):  
Frederick A. Sundberg ◽  
Linda B. McCollum
Keyword(s):  
New Species ◽  
North America ◽  
New Genus ◽  
Western North America ◽  
Type Specimens ◽  
Middle Cambrian ◽  
Informal Group ◽  
Nomen Dubium

Kochaspids are an informal group of ptychopariid trilobites that were both abundant and widespread in the early Middle Cambrian of North America. Based on the reassociation of pygidia and cranidia of some kochaspids, Kochiella Poulsen, 1927, is redefined and Hadrocephalites n. gen. is proposed. Hadrocephalites includes taxa previously assigned by Rasetti and Palmer to Schistometopus Resser, 1938a. Schistometopus is considered nomen dubium. Representatives of Kochiella and Hadrocephalites from the Pioche Shale and Carrara Formation of Nevada are described, including the new species Kochiella rasettii, K. brevaspis, Hadrocephalites lyndonensis, and H. rhytidodes. Other kochaspids previously assigned to Kochaspis Resser, 1935; Eiffelaspis Chang, 1963; Schistometopus; and Kochiella are discussed and some are reassigned. The type specimens of Kochiella augusta (Walcott, 1886); K. crito (Walcott, 1917b); K. chares (Walcott, 1917a); K. mansfieldi Resser, 1939; K. arenosa Resser, 1939; Hadrocephalites carina (Walcott, 1917b), and H. cecinna (Walcott, 1917b) are re-illustrated.

The Sweetognathus complex in the Permian of China: implications for evolution and homeomorphy

1987 ◽  
Vol 61 (5) ◽  
pp. 1047-1057 ◽  
Author(s):  
Wang Cheng-Yuan ◽  
Scott M. Ritter ◽  
David L. Clark
Keyword(s):  
New Species ◽  
North America ◽  
New Genus ◽  
Late Permian ◽  
Western North America ◽  
Evolutionary Studies ◽  
Complete Sequences ◽  
Iterative Evolution

The well-exposed and fossiliferous Permian carbonates in China have yielded Early and Late Permian species of the Sweetognathus complex that permit worldwide stratigraphic evaluation of members of the group. The sporadic appearance of species of Sweetognathus and related genera throughout the Permian in western North America and Iran, in particular, may represent iterative evolution and homeomorphy. The pectiniform element morphologies of the several species are interpreted as most important for evolutionary studies and document a partial Permian biostratigraphy in China that aids in the interpretation of less complete sequences elsewhere. A new genus, Pseudosweetognathus, and four new species, Pseudosweetognathus costatus, Sweetognathus subsymmetricus, S. paraguizhouensis, and Iranognathus nudus, are described.

HYMENOCHARA, A NEW GENUS OF ALLECULIDAE (COLEOPTERA) BASED ONMYCETOCHARA RUFIPESAND A NEW SPECIES FROM ARIZONA

1978 ◽  
Vol 110 (4) ◽  
pp. 435-441 ◽  
Author(s):  
J. M. Campbell
Keyword(s):  
New Species ◽  
North America ◽  
New Genus ◽  
Eastern North America ◽  
A New Species

AbstractHymenochara, a new genus of Alleculidae, is described based onMycetochara rufipes(J. E. LeConte) from eastern North America andHymenochara arizonensisnew species, from Arizona.

The Oldest Bryozoans: New Evidence From the Late Tremadocian (Early Ordovician) of East Yangtze Gorges in China

2007 ◽  
Vol 81 (6) ◽  
pp. 1308-1326 ◽  
Author(s):  
Feng-Sheng Xia ◽  
Sen-Gui Zhang ◽  
Zong-Zhe Wang
Keyword(s):  
New Species ◽  
North America ◽  
New Genus ◽  
Early Ordovician ◽  
The World ◽  
New Evidence ◽  
New Bryozoans

Previous reports of Cambrian bryozoans have proved not to be bryozoans. No pre-Ordovician bryozoans have been recognized. The oldest unequivocal bryozoans known from North America, Britain, and Russia are evidently of early Arenigian age. New bryozoans recently collected from the Fenxiang Formation in the Daping and Guanzhuangping sections, situated in the area east of the Yangtze Gorges, are described here, including one new genus, Orbiramus, and six new species, Nekhorosheviella nodulifera, N. semisphaerica, Orbiramus normalis, O. ovalis, O. minus, and Prophyllodictya prisca. These are assigned to the Trepostomida, apart from the last species which belongs to the Cryptostomida. The new bryozoans are from the conodont Paltodus deltifer deltifer Zone of the late Tremadocian age, the first three species possibly being present in the P. deltifer pristinus Subzone at the base. Therefore, they are the oldest bryozoans known from anywhere in the world. Extensive reefs resulting from a major regression in the late Tremadocian were dominated by bryozoans in the upper Fenxiang Formation. The bryozoans lived in a shoal environment and accumulated essentially in situ, showing no signs of significant transportation.

Arrhenia and Rimbachia, expanded generic concepts, and a reevaluation of Leptoglossum with emphasis on muscicolous North American taxa

1984 ◽  
Vol 62 (5) ◽  
pp. 865-892 ◽  
Author(s):  
S. A. Redhead
Keyword(s):  
New Species ◽  
North America ◽  
North American ◽  
New Genus ◽  
New Combinations ◽  
Boreal Species ◽  
Alpine Species

The generic limits of Arrhenia Fries, Geotus Pil. & Svr., Leptoglossum Karsten, Leptotus Karst., Mniopetalum Donk & Singer, Phaeotellus Kühn. & Lam., Pleuromycenula Singer, and Rimbachia Patouillard are examined. Two genera, Arrhenia and Rimbachia, are recognized. Keys for the species in these genera are presented and reports of the various species are reevaluated based largely on a restudy of original materials. New combinations in Arrhenia are based on Agaricus fissus Leysser, Merulius lobatus Pers., Helvella retiruga Bull., Leptoglossum alnetorum Singer, and Cantharellus spathulatus Fr. New species combinations in Rimbachia are based on Cyphella arachnoidea Peck, Agaricus bryophilus Pers., Cyphella muscicola var. neckerae Fr., Cantharellus furfuraceus Petch, and Pleuromycenula ellipsoidea Singer. Rimbachia paludosa sp. nov. is described from Ontario, Canada. Leptoglossum muscigenum (Bull.:Fr.) Karst. is a synonym of A.spathulata (Fr.) Redhead, Mniopetalum globisporum Donk & Singer is a synonym of R.arachnoidea (Peck) Redhead, Mniopetalum distinctum Horak is a synonym of R.furfuracea (Petch) Redhead, Leptoglossum candidum Reid is a synonym of R.neckerae (Fr.) Redhead, and Geotus glaucus sensu Pilát & Svrček 1954 is actually A.fissa (Leyss.) Redhead. Mniopetalum bisporum Singer is reduced to a subspecies of R. arachnoidea and Mniopetalum megalosporum Singer to a subspecies of R. neckerae (Fr.) Redhead. In North America, Arrhenia auriscalpium is an arctic–alpine species, A. lobata is an arctic–boreal–alpine species, and A. acerosa and A. retiruga are boreal species. Rimbachia arachnoidea and R. bryophila are boreal species. Arrhenia spathulata and A. fissa are known only from Europe. All Arrhenia and Rimbachia species are bryophiles. Cantharellus polycephalus Bres. is transferred to Pterygellus Corner and Leptoglossum bambusicola Corner is transferred to Marasmiellus Murrill. Pseudocraterellus leptoglossoides Corner is a basidiolichen and the type of a new genus, Semiomphalina Redhead. Pleuromycenula circularis Singer is transferred to Helotium Tode, and P. flava Singer is the type of a new genus, Flabellimycena Redhead. Campanella inquilina Romagnesi, based on Leptoglossum conchatum sensu Romagnesi non Velenovský, is described as new. Cantharellus prescotii Weinm., the correct name for Cantharellus albidus auct. non Fries, is transferred to Gerronema.

Revision of species of the “Oligia” semicana group (Lepidoptera: Noctuidae) with descriptions of a new genus and 12 new species

2002 ◽  
Vol 134 (2) ◽  
pp. 157-191 ◽  
Author(s):  
James T. Troubridge ◽  
J. Donald Lafontaine
Keyword(s):  
New Species ◽  
North America ◽  
New Genus ◽  
Species Group ◽  
Female Genitalia ◽  
Male And Female ◽  
Lepidoptera Noctuidae

AbstractThe name Neoligiagen.nov. is proposed for the “Oligia” semicana (Walker) species group in North America and 12 species, N. rubirena sp.nov., N. pagosa sp.nov., N. hardwicki sp.nov., N. inermis sp.nov., N. invenusta sp.nov., N. albirena sp.nov., N. lancea sp.nov., N. elephas sp.nov., N. lillooet sp.nov., N. surdirena sp.nov., N. canadensis sp.nov., and N. atlantica sp.nov. are described. Hadenella laevigata Smith is synonymized (synonymy restored) under Hadena tonsa Grote and Hadena hausta Grote is synonymized (synonymy restored) under Miana semicana Walker. Adults of all species are illustrated as well as male and female genitalia, where known.

New fossil portunids from Washington, USA, and Argentina, and a re-evaluation of generic and family relationships within the Portunoidea Rafinesque, 1815 (Decapoda: Brachyura)

2000 ◽  
Vol 74 (4) ◽  
pp. 636-653 ◽  
Author(s):  
Carrie E. Schweitzer ◽  
Rodney M. Feldmann
Keyword(s):  
New Species ◽  
North America ◽  
New Taxa ◽  
Family Relationships ◽  
West Coast ◽  
New Genus ◽  
New Combinations ◽  
The West

New portunoid fossils from southern Argentina and from the west coast of North America permit the reevaluation of the generic and family relationships within the Portunoidea Rafinesque, 1815. It has previously been suggested that the Portunidae and the Geryonidae Colosi, 1923, are closely related families (Manning and Holthuis, 1989). The new fossils suggest that the Geryonidae may in fact be derived from a portunid progenitor,ProterocarcinusFeldmann, Casadío, Chirino-Gálvez, and Aguirre Urreta, 1995, through a process of peramorphosis in which juveniles of the geryonid speciesChaceon peruvianus(d'Orbigny, 1842) resemble adults ofProterocarcinus latus(Glaessner, 1933). Examination of several genera within the portunid subfamily Polybiinae Ortmann, 1893, includingImaizumilaKarasawa, 1993;Megokkosnew genus;MinohellenusKarasawa, 1990;PororariaGlaessner, 1980;PortunitesBell, 1858; andProterocarcinus,suggests that the subfamily had an amphitropical distribution early in its history. New taxa reported here includeMegokkosnew genus andPortunites nodosusnew species. New combinations includeChaceon peruvianus(d'Orbigny, 1842),Imaizumila araucana(Philippi, 1887),Megokkos alaskensis(Rathbun, 1926),Megokkos hexagonalis(Nagao, 1932),Megokkos macrospinus(Schweitzer, Feldmann, Tucker, and Berglund, 2000),Minohellenus triangulum(Rathbun, 1926), andProterocarcinus latus(Glaessner, 1933).

Description of a new genus and two new species of cutworm moths (Lepidoptera: Noctuidae)

2004 ◽  
Vol 136 (6) ◽  
pp. 823-834
Author(s):  
J. Donald Lafontaine ◽  
James T. Troubridge
Keyword(s):  
New Species ◽  
Costa Rica ◽  
North America ◽  
Male Genitalia ◽  
New Genus ◽  
Western North America ◽  
Two New Species ◽  
Lepidoptera Noctuidae

AbstractAlastriagen. nov. is described, and Callierges tropicalis Schaus is transferred to the genus. Alastria chicosp. nov. is described from western North America and Alastria machosp. nov. is described from Costa Rica. We provide illustrations of the adults and genitalia of all three species, as well as the male genitalia of two related genera, Nedra Clarke and Actinotia Hübner.

scholarly journals Occigamasus, a new genus of pergamasine mites, with description of two new species from the west coast of North America (Parasitiformes: Gamasina: Parasitidae)

Acarologia ◽  
2019 ◽  
Vol 59 (4) ◽  
pp. 551-570
Author(s):  
Ilinca Juvara-Balş
Keyword(s):  
New Species ◽  
North America ◽  
West Coast ◽  
New Genus ◽  
Vancouver Island ◽  
New Combination ◽  
The West ◽  
Two New Species

Occigamasus n. gen., O. lindquisti n. sp. and O. makarovae n. sp. from Vancouver Island (Canada) and Oregon (U.S.A.) are described. Five other new species and their sites are noted but not enough specimens were available for adequate descriptions. Cycetogamasus californicus (Banks) sensu Hennessey and Farrier, 1988 is transferred to Occigamasus as a new combination.

The earliest mustelid in North America

2019 ◽  
Author(s):  
Ryan Paterson ◽  
Joshua X Samuels ◽  
Natalia Rybczynski ◽  
Michael J Ryan ◽  
Hillary C Maddin
Keyword(s):  
New Species ◽  
North America ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Morphological Data ◽  
Close Relative ◽  
Late Oligocene ◽  
New Genus And Species ◽  
Holotype Specimen ◽  
John Day

Abstract Until now, the pre-Miocene fossil record of mustelids in North America has been restricted to specimens attributable to oligobunine taxa and isolated remains tentatively allocated to the genus Plesictis. In the present study, we report on a nearly complete cranium and a referred dentary of a new genus and species of mustelid. The specimens were recovered from the Turtle Cove and Kimberly Members of the John Day Formation, Oregon, USA. These excellently preserved specimens more confidently confirm the presence of mustelids in the Early and Late Oligocene (Early and Late Arikareean) of North America. Like the holotype specimen of ‘Plesictis’ julieni, the new species lacks an alisphenoid canal and a postprotocrista on the M1 (synapomorphies of Mustelidae), but retains a dorsally deep suprameatal fossa (a feature occasionally suggested to be unique to Procyonidae). Phylogenetic analyses, applying parsimony and Bayesian inference to combined molecular (five genes totalling 5490 bp) and morphological data, recover this new species of mustelid as sister-species to ‘Plesictis’ julieni. The results of these analyses reveal that the new genus is a close relative of other species of Plesictis and several taxa traditionally allied with Oligobuninae, thereby rendering Oligobuninae paraphyletic. We further discuss the significance of the relatively small size of this new mustelid as it relates to predictions based on increased aridification of the palaeoclimate and the expansion of open habitats in the Oligocene.

Sign in / Sign up

Export Citation Format

Share Document