Conversion of the names Pyxicephaloidea, Pyxicephalidae and Pyxicephalinae (Anura, Ranoidea) into phylogenetic nomenclature

Bionomina ◽  
2021 ◽  
Vol 25 (1) ◽  
Author(s):  
ALFRED LEMIERRE ◽  
MICHEL LAURIN

The recent publications of the sixth edition of the PhyloCode and of the monograph Phylonyms now allow the publication of nomenclatural acts that will establish priority under that code. This includes defining existing and newly proposed taxon names in conformity with the PhyloCode. Among amphibian taxa, very few names have been converted so far, and we take the opportunity of our recent phylogenetic analysis of neobatrachians focusing on an extinct genus of Pyxicephalidae, Thaumastosaurus, from the Eocene of Western Europe, to convert the names Pyxicephaloidea, Pyxicephalidae and Pyxicephalinae into phylogenetic nomenclature, following the PhyloCode rules.

2007 ◽  
Vol 52 (2) ◽  
Author(s):  
Göran Malmberg ◽  
Catherine Collins ◽  
Carey Cunningham ◽  
Behiar Jalali

AbstractThe paper deals with two morphologically similar but molecularly clearly different species of Gyrodactylus: G. derjavinoides sp. nov. on Salmo trutta trutta L. in Western Europe and G. derjavini Mikailov. 1975 collected on Salmo trutta caspius Kessler in Iran. The new species is described and its opisthaptoral hard parts compared to those of G. derjavini. Our molecular analysis of G. derjavinoides and G. derjavini confirmed that the morphological differences between them are species differences and not intraspecific variations. Phylogenetic analysis using the ITS rDNA region placed both species within the subgenus G. (Limnonephrotus) and within the G. wageneri-group, quite in accordance with morphological results. The two species, however, did not cluster as sister taxa. The correspondence between molecular-based clades within G. (Limnonephrotus) and the morphological shapes of marginal hooks within these clades are discussed. The importance of combined molecular and morphological analyses when describing or redescribing Gyrodactylus species is stressed.


ZooKeys ◽  
2019 ◽  
Vol 875 ◽  
pp. 63-127 ◽  
Author(s):  
Marko Prous ◽  
Andrew Liston ◽  
Katja Kramp ◽  
Henri Savina ◽  
Hege Vårdal ◽  
...  

Keys to adults and larvae of the genera of West Palaearctic nematine sawflies are presented. Species of some of the smaller genera are keyed, and their taxonomy, distribution, and host plants reviewed, with a geographic focus on north-western Europe, particularly Sweden. Dinematus Lacourt, 2006 is a new junior subjective synonym of Pristiphora Latreille, 1810, resulting in the new combination Pristiphora krausi (Lacourt, 2006) for the type species of Dinematus. Hemichroa monticola Ermolenko, 1960 is a new junior subjective synonym of Hemichroa australis (Serville, 1823). Lectotypes are designated for Tenthredo opaca Fabricius, 1775, Mesoneura opaca var. nigerrima Enslin, 1914, Mesoneura opaca var. obscuriventris Enslin, 1914, Nematus hypogastricus Hartig, 1837, Nematus alnivorus Hartig, 1840, Leptopus rufipes Förster, 1854, Nematus protensus Förster, 1854, and Platycampus luridiventris var. pleuritica Enslin, 1915. A phylogenetic analysis based on four genes (mitochondrial COI and nuclear NaK, POL2, and TPI) supports the current generic classification.


Author(s):  
E. A. Naryshkina ◽  
Ya. M. Krasnov ◽  
Zh. V. Alhova ◽  
D. V. Badanin ◽  
A. V. Osin ◽  
...  

Objective of the study was to conduct whole-genome sequencing of the vaccine strain Francisella tularensis 15 NIIEG and determine, based on the results, its phylogenetic relationships and the genetic organization features.Materials and methods. Whole-genome sequencing of F. tularensis 15 NIIEG strain was performed on Ion PGM (Ion Torrent, USA) and MinIon (Oxford Nanopore Technologies, UK) platforms. Alignment of readings obtained to the whole-genome of F. tularensis subsp. holarctica LVS (CP009694, USA, 2015) was performed using the software package DNASTAR Lasergene 15.3. Hybrid assembly of reads into contigs was performed by means of Unicycler v. 0.4.4, using data obtained by semiconductor sequencing technology (Ion PGM) and nanopore sequencing (MinIon). Phylogenetic analysis was performed on the basis of single nucleotide polymorphism (SNPs) data located in the core part of F. tularensis genome. Maximum parsimony algorithm was used to construct a dendrogram using the obtained data of common SNP-matrix.Results and discussion. The close relations of F. tularensis 15 NIIEG strain with F. tularensis LVS vaccine strain used in the countries of Western Europe and North America was confirmed. Searching for common single mutations characteristic of F. tularensis 15 vaccine strains of NIIEG and LVS, permitted to find 5 unique SNPs that distinguish them from all other 228 F. tularensis strains used in the comparison. Comparative genomic analysis ofF. tularensis 15 NIIEG vaccine strain and virulent strains revealed in its structure two extensive 526 bp deletions (genes pilA and pilE) and 1480 bp (genes encoding lipoprotein). Similar deletions are also present in the genome of the F. tularensis LVS vaccine strain.


PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3217 ◽  
Author(s):  
Philip D. Mannion ◽  
Ronan Allain ◽  
Olivier Moine

Brachiosauridae is a clade of titanosauriform sauropod dinosaurs that includes the well-known Late Jurassic taxaBrachiosaurusandGiraffatitan. However, there is disagreement over the brachiosaurid affinities of most other taxa, and little consensus regarding the clade’s composition or inter-relationships. An unnamed partial sauropod skeleton was collected from middle–late Oxfordian (early Late Jurassic) deposits in Damparis, in the Jura department of eastern France, in 1934. Since its brief description in 1943, this specimen has been informally known in the literature as the ‘Damparis sauropod’ and ‘FrenchBothriospondylus’, and has been considered a brachiosaurid by most authors. If correctly identified, this would make the specimen the earliest known titanosauriform. Coupled with its relatively complete nature and the rarity of Oxfordian sauropod remains in general, this is an important specimen for understanding the early evolution of Titanosauriformes. Full preparation and description of this specimen, known from teeth, vertebrae and most of the appendicular skeleton of a single individual, recognises it as a distinct taxon:Vouivria damparisensisgen. et sp. nov. Phylogenetic analysis of a data matrix comprising 77 taxa (including all putative brachiosaurids) scored for 416 characters recovers a fairly well resolved Brachiosauridae.Vouivriais a basal brachiosaurid, confirming its status as the stratigraphically oldest known titanosauriform. Brachiosauridae consists of a paraphyletic array of Late Jurassic forms, withEuropasaurus,VouivriaandBrachiosaurusrecovered as successively more nested genera that lie outside of a clade comprising (Giraffatitan+Sonorasaurus) + (Lusotitan+ (Cedarosaurus+Venenosaurus)).Abydosaurusforms an unresolved polytomy with the latter five taxa. The Early Cretaceous South American sauropodPadillasauruswas previously regarded as a brachiosaurid, but is here placed within Somphospondyli. A recent study contended that a number of characters used in a previous iteration of this data matrix are ‘biologically related’, and thus should be excluded from phylogenetic analysis. We demonstrate that almost all of these characters show variation between taxa, and implementation of sensitivity analyses, in which these characters are excluded, has no effect on tree topology or resolution. We argue that where there is morphological variation, this should be captured, rather than ignored. Unambiguous brachiosaurid remains are known only from the USA, western Europe and Africa, and the clade spanned the Late Jurassic through to the late Albian/early Cenomanian, with the last known occurrences all from the USA. Regardless of whether their absence from the Cretaceous of Europe, as well as other regions entirely, reflects regional extinctions and genuine absences, or sampling artefacts, brachiosaurids appear to have become globally extinct by the earliest Late Cretaceous.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Bert Vanmechelen ◽  
Valentijn Vergote ◽  
Michelle Merino ◽  
Erik Verbeken ◽  
Piet Maes

Abstract Common or European hedgehogs can be found throughout Western Europe. They are known carriers of a variety of parasitic and bacterial pathogens, and have also been shown to carry several viruses, including morbilli-like paramyxoviruses, although the pathogenic and zoonotic potential of some of these viruses has yet to be determined. We report here the discovery of a novel paramyxovirus in Belgian hedgehogs, named Belerina virus. The virus was detected by nanopore sequencing of RNA isolated from hedgehog tissue. Out of 147 animals screened in this study, 57 tested positive for Belerina virus (39%), indicating a high prevalence of this virus in the Belgian hedgehog population. Based on its divergence from other known paramyxovirus species, Belerina virus is thought to represent a new species in the family Paramyxoviridae. Phylogenetic analysis groups Belerina virus together with the bat-borne Shaan virus within the genus Jeilongvirus, although expanding the tree with partial genomes shows Belerina virus forming a separate subclade within this genus, alongside a yet-unnamed paramyxovirus isolated from a greater tube-nosed bat. In summary, we discuss the complete genome sequence of Belerina virus, a putative new paramyxovirus species commonly found in Belgian hedgehogs.


Author(s):  
Emmanuel GHEERBRANT ◽  
Dominique TEODORI

We report the discovery of a new Late Cretaceous eutherian mammal, Azilestes ragei n. gen., n. sp. from the Mas-d’Azil northern Pyrenean site (France), which is among the largest known. It is only known from a broken lower jaw found in uppermost levels of the Grès de Labarre Formation (early Maastrichtian). Despite its poor preservation, it displays distinctive specialized features with respect to known Cretaceous eutherians. This includes a reduced premolar formula and shortened and robust jaw, an incipient hypolophid, and a cingular-like postcristid and hypoconulid. The phylogenetic analysis suggests indeed a possible stem relationship between Azilestes n. gen. and some clades of herbivorous Cenozoic placentals, but with weak support. Several molar features reminiscent of the Zhelestidae, especially Valentinella Tabuce, Vianey-Liaud & Garcia, 2004, support instead that Azilestes n. gen. is a basal eutherian showing early specialization in a herbivorous diet convergent with some crown placentals. Whatever the suprageneric position of Azilestes n. gen., which remains to be clarified with additional material, its discovery highlights a significant diversity of European Cretaceous eutherians in contrast to their very poor fossil record.


2020 ◽  
Vol 25 (3) ◽  
pp. 12-19
Author(s):  
Justin D. Beck ◽  
Judge David B. Torrey

Abstract Medical evaluators must understand the context for the impairment assessments they perform. This article exemplifies issues that arise based on the role of impairment ratings and what edition of the AMA Guides to the Impairment of Permanent Impairment (AMA Guides) is used. This discussion also raises interesting legal questions related to retroactivity, applicability of prior precedent, and delegation. On June 20, 2017, the Supreme Court of Pennsylvania handed down its decision, Protz v. WCAB (Derry Area Sch. Dist.), which disallows use of the “most recent edition” of the AMA Guides when determining partial disability entitlement under the Pennsylvania Workers’ Compensation Act. An attempted solution was passed by the Pennsylvania General Assembly and was signed into law Act 111 on October 24, 2018. Although it affirms that the AMA Guides, Sixth Edition, must be used for impairment ratings, the law reduces the threshold for total disability benefits from 50% to 35% impairment. This legislative adjustment benefited injured workers but sparked additional litigation about whether, when, and how the adjustment should be applied (excerpts from the laws and decisions discussed by the authors are included at the end of the article). In using impairment as a threshold for permanent disability benefits, evaluators must distinguish between impairment and disability and determine an appropriate threshold; they also must be aware of the compensation and adjudication process and of the jurisdictions in which they practice.


2009 ◽  
Vol 14 (6) ◽  
pp. 1-9
Author(s):  
Robert J. Barth

Abstract Complex regional pain syndrome (CRPS) is a controversial, ambiguous, unreliable, and unvalidated concept that, for these very reasons, has been justifiably ignored in the “AMA Guides Library” that includes the AMAGuides to the Evaluation of Permanent Impairment (AMA Guides), the AMA Guides Newsletter, and other publications in this suite. But because of the surge of CRPS-related medicolegal claims and the mission of the AMA Guides to assist those who adjudicate such claims, a discussion of CRPS is warranted, especially because of what some believe to be confusing recommendations regarding causation. In 1994, the International Association for the Study of Pain (IASP) introduced a newly invented concept, CRPS, to replace the concepts of reflex sympathetic dystrophy (replaced by CRPS I) and causalgia (replaced by CRPS II). An article in the November/December 1997 issue of The Guides Newsletter introduced CRPS and presciently recommended that evaluators avoid the IASP protocol in favor of extensive differential diagnosis based on objective findings. A series of articles in The Guides Newsletter in 2006 extensively discussed the shortcomings of CRPS. The AMA Guides, Sixth Edition, notes that the inherent lack of injury-relatedness for the nonvalidated concept of CRPS creates a dilemma for impairment evaluators. Focusing on impairment evaluation and not on injury-relatedness would greatly simplify use of the AMA Guides.


2009 ◽  
Vol 14 (3) ◽  
pp. 7-10
Author(s):  
Craig Uejo ◽  
Stephen Demeter

Abstract In the AMAGuides to the Evaluation of Permanent Impairment (AMA Guides), Sixth Edition, distal clavicle resection (resection arthroplasty of the acromioclavicular joint [ACJ]) results in ratable impairment, but only a single diagnosis within a region may be rated. Therefore, if another impairing condition is present in the shoulder region (eg, impingement syndrome or rotator cuff disease) only that resulting in the greatest causally related impairment is rated. In the setting of an occupational or other compensable injury or illness, causation of the impairment often is a key issue because, typically, only impairment that is causally related to the injury can be rated. For example, assume that a lifting injury at work caused a tear in a rotator cuff tendon that was already attenuated by repetitive impingement on inferiorly projecting spurs from longstanding degenerative arthritis of the ACJ. If surgery was performed for a traumatic rotator cuff tear and the distal clavicle also was resected due to preexisting ACJ arthritis, the latter surgery is not considered to be related to the injury. In other words, because the ACJ arthritis was neither caused nor worsened by the injury, this condition is not rated. The distal clavicular resection may have been warranted to diminish pain due to ACJ arthritis and/or eliminate the distal clavicle as a source of impingement.


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