Ontogeny and systematics of Toernquistiidae (Trilobita, Proetida) from the Ordovician of the Argentine Precordillera

1998 ◽  
Vol 72 (2) ◽  
pp. 273-303 ◽  
Author(s):  
Brian D. E. Chatterton ◽  
Gregory D. Edgecombe ◽  
Beatriz G. Waisfeld ◽  
Norberto E. Vaccari
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
New Genus ◽  
Monophyletic Group ◽  
New Genus And Species ◽  
Argentine Precordillera

The following new Toernquistiidae from Whiterockian (Llanvirn to lower Caradoc) strata of the Precordillera, western Argentina, are described: Chomatopyge canasi new species, Lasarchopyge benedettoi new genus and species, Lasarchopyge correae new genus and species, Lasarchopyge new species A, and Paratoernquistia sanchezae new genus and species. Phylogenetic analysis suggests that the Toernquistiidae Hupé, 1953 (including Chomatopyge, Lasarchopyge, Mesotaphraspis, Paratoernquistia, and Toernquistia) is closely related to but distinct from the Dimeropygidae Hupé, 1953 (including Ischyrotoma, Ischyrophyma and Dimeropyge). It is difficult to find unique synapomorphies that unite toernquistiids and dimeropygids into a monophyletic group that excludes other proetides (e.g., hystricurids), although details of their ontogenies are similar. Several species of Toernquistiidae are known from the Argentine Precordillera (one species previously described), and other species of this family have been described from Australia, Baltica, China, Kazakhstan and Laurentia. Members of the Dimeropygidae are known only from Baltica and Laurentia.

A new oryzomyine (Rodentia: Sigmodontinae) from the Quaternary of Curaçao (West Indies)

Zootaxa ◽  
2012 ◽  
Vol 3534 (1) ◽  
pp. 61 ◽  
Author(s):  
JELLE S. ZIJLSTRA
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
West Indies ◽  
New Genus ◽  
Middle Pleistocene ◽  
New Genus And Species ◽  
Large Size

A collection of 17 isolated rodent molars from a cave in the eastern part of Duivelsklip, Curaçao, Dutch West Indies, isdescribed as Dushimys larsi, new genus and species. The new species is characterized by relatively large size, broad mo-lars, absence of mesolophid and presence of anterolophid and anterolabial cingulum on m3, absence of metaloph on M3,and m2 with three roots. Phylogenetic analysis could not conclusively resolve the position of the new species, and it isprovisionally regarded as a representative of an otherwise unknown oryzomyine genus. The material is likely middle Pleistocene in age.

Phylogenetic analysis of the genus Corotoca, with description of a new genus and species from Brazil (Coleoptera, Staphylinidae, Aleocharinae)

2020 ◽  
pp. 1-45
Author(s):  
Bruno Zilberman
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Species Identification ◽  
New Genus ◽  
Cladistic Analysis ◽  
Sister Group ◽  
Exhaustive Search ◽  
New Genus And Species ◽  
A New Species

Corotoca is a strictly Neotropical genus of termitophilous beetles associated with termites of genus Constrictotermes. A cladistic analysis based on 13 terminal taxa and 60 characters (57 morphological and three behavioral) was conducted. The exhaustive search with equally weighted characters resulted in two most parsimonious trees with 95 steps. Spirachtha is proposed to be the sister group of the monophyletic “subgroup Corotocae” (Corotoca + Cavifonexus gen. nov.), based on eleven synapomorhphies (ten exclusive and one homoplastic). The monophyly of Corotoca is supported here, including six species associated with Constrictotermes cyphergaster: (Corotoca hitchensi sp. nov + (C. melantho + C. pseudomelantho sp. nov.) + ((C. fontesi + (C. phylo + C. araujoi)). A new genus, Cavifronexus gen. nov., is proposed to two species associated with Constrictotermes cavifrons (Holmgren, 1910): Cavifronexus guyanae comb. nov., from Guyana and Brazil, previously described as Corotoca; and a new species, Cavifronexus papaveroi sp. nov., from Brazil. This work also includes descriptions, redescriptions, and illustrations for all species and genera. Keys for genera and species identification in “subgroup Corotocae” are also provided.

Triseptata sexualis gen. et sp. nov. in Latoruaceae (Pleosporales)

Phytotaxa ◽  
2020 ◽  
Vol 447 (4) ◽  
pp. 252-264
Author(s):  
SARANYAPHAT BOONMEE ◽  
MARK S. CALABON ◽  
RUNGTIWA PHOOKAMSAK ◽  
ABDALLAH M. ELGORBAN ◽  
KEVIN D. HYDE
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
New Genus ◽  
Novel Species ◽  
Multigene Phylogeny ◽  
New Genus And Species ◽  
Sexual Form

A survey of lignicolous terrestrial ascomycetes conducted in Thailand yielded a number of novel species. In this paper, we report on a terrestrial collection of a taxon from dead branches of an unidentified plant. Triseptata gen. et sp. nov. is characterized by immersed, uni- to multi-loculate ascomata, filamentous pseudoparaphyses, bitunicate, fissitunicate, cylindrical-clavate asci and 3-septate, light brown spores, with asymmetrical ends, in its sexual form. In culture, it produced hyphomycetous, globose to subglobose, multi-septate and darkly pigmented conidia-like structures. Phylogenetic analysis of a combined LSU, ITS and SSU dataset shows Triseptata to be a well-separated lineage from all genera in Latoruaceae. Based on multigene phylogeny, Triseptata gen. nov. is introduced to accommodate a single new species Triseptata sexualis and placed in Latoruaceae. Illustrations, descriptions and notes are provided for the new genus and species.

New Late Ordovician (Early Caradoc) bivalves from the Sierra de Villicum (Argentine Precordillera)

1999 ◽  
Vol 73 (1) ◽  
pp. 66-76 ◽  
Author(s):  
Teresa M. Sánchez
Keyword(s):  
New Species ◽  
New Genus ◽  
Late Ordovician ◽  
Bivalve Molluscs ◽  
New Genus And Species ◽  
The Matrix ◽  
Argentine Precordillera

A new and unusually well preserved bivalve fauna of Late Ordovician age was recovered from pebbles within the Late Ashgill (Hirnantian) glacigenic diamictite of the Don Braulio Formation, in the Argentine Precordillera. According to the associated brachiopods and the presence of graptolites of the bicornis Zone in the matrix of the diamictite, an early Caradoc age is accepted for the bivalve fauna. The clasts contain bivalve molluscs representing nine genera, of which seven are new. Identified taxa are the following: Praenucula sp., Cuyopsis symmetricus new genus and species, Villicumia canteraensis new genus and species, Trigonoconcha acuta new genus and species, Concavodonta ovalis new species, Hemiconcavodonta minuta new genus and species, Hemiconcavodonta sp., Emiliania cuerdae new genus and species, and Concavoleda braulense new genus and species. Two new subfamilies are proposed: Praenuculinae and Concavodontinae. The genera Praenucula Pfab, Cuyopsis new genus, Villicumia new genus, and Trigonoconcha new genus are included in the new subfamily Praenuculinae. The genera Concavodonta Babin and Melou, Hemiconcavodonta new genus, and Emiliania new genus are included in the new subfamily Concavodontinae.

Revision of the genus Megalopsalis (Arachnida: Opiliones: Phalangioidea) in Australia and New Zealand and implications for phalangioid classification

Zootaxa ◽  
2011 ◽  
Vol 2773 (1) ◽  
pp. 1 ◽  
Author(s):  
CHRISTOPHER K. TAYLOR
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
New Zealand ◽  
Western Australia ◽  
Type Species ◽  
New Genus ◽  
South American ◽  
New Genus And Species ◽  
Auckland Island ◽  
The Family

A morphological phylogenetic analysis is conducted of Australasian harvestmen previously included in the family Monoscutidae. Monophyly of Monoscutidae is not supported, and the subfamilies Monoscutinae and Megalopsalidinae are synonymised with the South American subfamily Enantiobuninae. Monoscutidae is re-synonymised with the family Neopilionidae. The analysis also demonstrates the polyphyly of species previously assigned to the genus Megalopsalis. Megalopsalis epizephyros new species, M. eremiotis new species, M. leptekes new species and M. pilliga new species are described and M. serritarsus and M. hoggi are redescribed, all from Australia. Hypomegalopsalis tanisphyros new genus and species is described from Western Australia. Megalopsalis linnaei is transferred to Tercentenarium new genus. Forsteropsalis new genus is established to include species from New Zealand (including Auckland Island): Macropsalis chiltoni (type species), Pantopsalis distincta, Macropsalis fabulosa, Pantopsalis grayi, Megalopsalis grimmetti, Megalopsalis inconstans, Megalopsalis marplesi, Megalopsalis nigra and Pantopsalis wattsi.

Revision of Afromaculepta gen. n., a monophyletic group of Afrotropical galerucine leaf beetles (Coleoptera: Chrysomelidae)

2000 ◽  
Vol 31 (1) ◽  
pp. 3-26 ◽  
Author(s):  
Thomas Wagner ◽  
Ruth Hasenkamp
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Type Species ◽  
New Genus ◽  
Monophyletic Group ◽  
Nominal Species ◽  
Leaf Beetles ◽  
Distribution Maps ◽  
Cape Of Good Hope ◽  
Three New Species

AbstractMonolepta frontalis Chevrolat, 1837, a species described from the Cape of Good Hope, shows strong differences in external and genitalic characters from M. bioculata (Fabricius, 1781), type species of Monolepta Chevrolat, 1837. Herein, M. frontalis Chevrolat, 1837 is transferred to Afromaculepta gen. n., and designated as type species. Monolepta octomaculata Jacoby, 1895, and M. decemmaculata Jacoby, 1886 are also transferred to the new genus. Further, four nominal species, Monolepta estcourtiana Jacoby, 1899, M. contaminata Weise, 1914, M. nodieri Laboissière, 1919, and M. senegalensis Bryant, 1948 are newly synonymised with Afromaculepta decemmaculata (Jacoby, 1886). Three new species of Afromaculepta are described: A. klausi sp. n., A namibiae sp. n., and A. ursulae sp. n. This study, based on revision of material from all major collections, includes distribution maps, an identification key, and a phylogenetic analysis.

Melanosternarchus amaru, a new genus and species of electric ghost knifefish (Gymnotiformes: Apteronotidae) from the Amazon Basin

Zootaxa ◽  
2018 ◽  
Vol 4378 (4) ◽  
pp. 451 ◽  
Author(s):  
MAXWELL J. BERNT ◽  
WILLIAM G. R. CRAMPTON ◽  
ALEXANDER B. ORFINGER ◽  
JAMES S. ALBERT
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Amazon Basin ◽  
New Genus ◽  
Species Group ◽  
Unique Combination ◽  
New Genus And Species ◽  
Statistical Support ◽  
Molecular Phylogenetic ◽  
Nuclear Locus

We describe Melanosternarchus amaru as a new genus and species of Apteronotidae from the deep channels of blackwater and clearwater tributaries of the Amazon River in Brazil and Peru. The new species superficially resembles members of the widespread “Apteronotus” bonapartii species group, from which it can be readily distinguished by expanded bones of the infraorbital laterosensory canal. It can further be distinguished from all other apteronotids by a unique combination of characters: reduced premaxillary dentition, a large gape, and an absence of scales from the entire dorsum. A molecular phylogenetic analysis using three mitochondrial loci and one nuclear locus (~3000 bp) places this genus as sister to Compsaraia, and these two genera together as a clade sister to Pariosternarchus; all nodes with strong statistical support. The clade formed by these three genera includes five species, four of which are restricted to the Amazon basin. The apparent habitat preference of the new species for low-conductivity blackwater and clearwater rivers has not been reported in other apteronotid species. 

New genus and species of subfamily Trinodinae (Coleoptera, Polyphaga, Dermestidae) from Lowermost Eocene French amber

2010 ◽  
Vol 19 (1) ◽  
pp. 54-69
Author(s):  
A.G. Kirejtshuk ◽  
J. Háva ◽  
A. Nel
Keyword(s):  
New Species ◽  
New Genus ◽  
Short Review ◽  
New Genus And Species ◽  
New Tribe ◽  
Fossil Records

In the paper six new species of the genus Oisenodes gen. nov. (Dermestidae, Trinodinae, Trinodini) are described: O. azari sp. nov., O. clavatus sp. nov., O. gallicus sp. nov., O. metepisternalis sp. nov., O. oisensis sp. nov. and O. transversus sp. nov. A new tribe Trinoparvini Hava, trib. nov. is established for the recent genus Trinoparvus Háva, 2004. Short review of known fossil records of the subfamily Trinodinae is given.

A new genus and two new species of Tarsonemidae (Acari: Heterostigmata) associated with bark beetles (Coleoptera: Curculionidae: Scolytinae) from Peru

Zootaxa ◽  
2021 ◽  
Vol 4966 (1) ◽  
pp. 41-53
Author(s):  
ALEXANDER A. KHAUSTOV ◽  
ALEXANDER V. PETROV ◽  
VASILIY B. KOLESNIKOV
Keyword(s):  
New Species ◽  
Bark Beetles ◽  
New Genus ◽  
New Genus And Species ◽  
Key To Species ◽  
Two New Species ◽  
A New Species

A new genus and species, Unguitarsonemus paradoxus n. gen., n. sp. and a new species, Pseudotarsonemoides peruviensis n. sp. (Acari: Trombidiformes: Tarsonemidae), are described based on phoretic females collected on bark beetles Phloeotribus pilula and Ph. biguttatus, respectively, from Peru. A key to species of the genus Pseudotarsonemoides is provided. 

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.

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