scholarly journals A new cistecephalid (Dicynodontia: Emydopoidea) from the Upper Permian of Malawi

2021 ◽  
Author(s):  
Ricardo Araújo ◽  
Zanildo Macungo ◽  
Vincent Fernadez ◽  
Elizabeth G. Chindebvu ◽  
Louis L. Jacobs
Keyword(s):  
New Genus ◽  
Taxonomic Diversity ◽  
Upper Permian ◽  
Micro Computed Tomography ◽  
New Genus And Species ◽  
Basal Clade ◽  
Cranial Osteology ◽  
First Time ◽  
Arteries And Veins ◽  
The Brain

Cistecephalidae is a relatively basal clade of dicynodonts, well-nested within emydopoids, and known to have multiple adaptations to a fossorial lifestyle. In recent years cistecephalid taxonomic diversity has been progressively increasing and important insights into the osteology, soft-tissue anatomy, and paleobiology of the clade have improved considerably. Here we describe a new genus and species of a cistecephalid from the Chiweta Beds (Northern Malawi, Wuchiapingian), a yet inadequately sampled area of Karoo sediments. Due to the minute dimensions and delicate nature of specimen PK-16-1, we have utilized, propagation phase-contrast synchrotron X-ray micro-computed tomography, revealing conspicuous contrast between rock matrix and bone and allowing reconstruction of its cranial osteology in great detail. PK-16-1 is here recognized as a new genus and species based on various autapomorphies, such as the presence of an atrophied preparietal and the presence of convergent crests along the pila antoticae. We performed a phylogenetic analysis in which we recovered PK-16-1 in a clade with Kembawacela and Cistecephalus united, among other characters, by a strongly embayed rostrum notch. Furthermore, the anatomical resolution obtained allowed us to reconstruct the osseous labyrinth, the paths for several nerve branches, arteries and veins for the first time in cistecephalids, and we develop new hypotheses for their paths and nomenclature for dicynodonts. We found remarkable resemblance in the brain endocast of PK-16-1 and another cistecephalid, Kawingasaurus, which is considerably distinct from other dicynodonts.

A SYNOPSIS OF THE NEARCTIC BRACONINI, WITH REVISIONS OF NEARCTIC SPECIES OF COELOIDES AND MYOSOMA (HYMENOPTERA: BRACONIDAE)

1978 ◽  
Vol 110 (7) ◽  
pp. 721-765 ◽  
Author(s):  
W. R. M. Mason
Keyword(s):  
New Species ◽  
New Genus ◽  
Chihuahuan Desert ◽  
New Genus And Species ◽  
New Subspecies ◽  
Northern Mexico ◽  
New Synonyms ◽  
First Time ◽  
Nearctic Region

AbstractThe 11 genera of Nearctic Braconini are keyed: two of them, Myosoma Brullé with a wide pantropical range and Alienoclypeus Shenefelt, new genus, are found chiefly in the Chihuahuan desert and shrub fauna of northern Mexico and the southwestern U.S.A. and are recorded as Nearctic for the first time. Four new species are described in Myosoma: eumystax, impexum, longius, and durango. R. D. Shenefelt describes a new genus and species, Alienoclypeus insolitus. The genus Atanycolimorpha Viereck, 1913 is synonymized with Ipobracon Thomson, 1892. The genus Coeloides is revised for the Nearctic Region; 12 species are described and illustrated. Five of these are new: mexicanus, durangensis, sympitys, tsugatorus, and sonora. One species, C. rossicus (Kokujev), is Holarctic, a new subspecies, betulae, is described from Canada. The following are new synonyms: C. rufovariegatus (Provancher) = (dendroctoni Cushman), C. vancouverensis (Dalla Torre) = (brunneri Viereck), C. crocator (Kirby) = (promontorii Dalla Torre).

Cassiavellia galtarae, new species, new genus: a new Permian bivalve and its significance for pterioidean systematics

2010 ◽  
Vol 84 (6) ◽  
pp. 1152-1176 ◽  
Author(s):  
Ilya Tëmkin ◽  
John Pojeta
Keyword(s):  
New Species ◽  
New Genus ◽  
Larval Shell ◽  
Upper Permian ◽  
Taxonomic Significance ◽  
New Genus And Species ◽  
The Family ◽  
Dental Ontogeny

An exceptionally well-preserved silicified bivalve from the Upper Permian of Texas is described and assigned to a new genus and species,Cassiavellia galtarae, placed in the family Bakevelliidae. The species represents one of the earliest and best characterized unequivocal occurrences of the multivincular ligament in the superfamily Pterioidea. The silicified material provides a wealth of information on the morphology of inadequately known Paleozoic pterioideans, including hitherto undescribed aspects of the larval shell, auricular sulcus, muscle scars, and dental ontogeny. The discovery of the condyle-fossa complex on the anteroventral shell margin, a feature previously undescibed in Bivalvia, raises the question of the homology and taxonomic significance of the problematic subumbonal ridge-like structures in Pterioidea. In life,C. galtaraewas probably an epifaunal right-pleurothetic bivalve, byssally attached to hard or raised flexible substrata. In addition toC. galtarae, another new species,C. nadkevnae, is placed inCassiavellia.

scholarly journals New Genus and Species of Gall Midges (Diptera, Cecidomyiidae, Porricondylinae, Holoneurini) from the Late Eocene Amber of Olevsk (Zhitomir Region, Ukraine)

2017 ◽  
Vol 51 (1) ◽  
pp. 23-30 ◽  
Author(s):  
Z. A. Fedotova ◽  
E. E. Perkovsky
Keyword(s):  
New Species ◽  
New Genus ◽  
Late Eocene ◽  
Rovno Amber ◽  
New Genus And Species ◽  
Gall Midges ◽  
Two New Species ◽  
First Time ◽  
Eocene Amber

Abstract Gall midges are reported for the first time in Late Eocene Rovno amber from the Olevsk, Zhitomir Region. This is the second amber locality to yield gall midges in the Zhitomir Region, after Gulyanka. Rovnoholoneurus gen. n. and two new species, Rovnoholoneurus davidi sp. n. and R. miyae sp. n. are described. Bryocrypta laqueata Fedotova, 2005 is transferred to the genus Rovnoholoneurus, and Rovnoholoneurus laqueatus (Fedotova, 2005), comb. n. is established. A key to the species of Rovnoholoneurus is provided.

A phylogenetic revision of Calydna and relatives (Lepidoptera: Riodinidae)

2002 ◽  
Vol 33 (2) ◽  
pp. 185-237 ◽  
Author(s):  
Jason P.W. Hall
Keyword(s):  
Phylogenetic Analysis ◽  
New Genus ◽  
Male And Female ◽  
Basal Clade ◽  
Two New Species ◽  
Group A ◽  
Species Groups ◽  
First Time ◽  
The Relationship ◽  
Phylogenetic Revision

AbstractA phylogenetic revision of the Neotropical riodinid genus Calydna Doubleday and relatives is presented. A phylogenetic analysis for all twenty species of Calydna using thirty-eight characters of adult morphology generated four most parsimonious cladograms. Calydna is characterised to contain eighteen species, divided here into three monophyletic species groups with the relationship caieta group + (thersander group + hiria group). A new genus Echydna Hall gen. n. is described for the most basal clade, containing chaseba Hewitson and punctata C. & R. Felder, which are transferred from Calydna (combs. n.). The taxonomy, morphology, biogeography and biology of both genera are discussed, locality data is listed and mapped, and the adults and male and female genitalia are illustrated for all species. Concealed male abdominal androconial scales, which phylogenetically unite the thersander and hiria groups, are reported for the first time outside of the tribes Symmachiini and Nymphidiini. Two new species are described, Calydna jeannea sp. n. and Calydna nicolayi sp. n., and the replacement name fissilisima is provided for the unavailable name fissilis Stichel; maculosa Bates is transferred from Calydna to Callistium Stichel (comb. n.).

scholarly journals Sitarobrachys thoracica (Kraatz, 1862): new genus and species for the blister beetle fauna of Turkey (Coleoptera: Meloidae)

2016 ◽  
Vol 48 (2) ◽  
pp. 125 ◽  
Author(s):  
Marco A. Bologna
Keyword(s):  
Canary Islands ◽  
Mediterranean Basin ◽  
New Genus ◽  
New Genus And Species ◽  
Southern Turkey ◽  
The Mediterranean ◽  
First Time ◽  
The Mediterranean Basin ◽  
Blister Beetle

<em>Sitarobrachys</em> <em>thoracica</em>, belonging to a monotypic Mediterranean-Macaronesian genus of Meloidae Nemognathinae, is recorded for the first time from southern Turkey. The genus results widely distributed around the Mediterranean Basin and in the eastern Canary Islands.

scholarly journals Zoropelecinus zigrasi, a pelecinid wasp in mid-Cretaceous amber from Myanmar (Hymenoptera: Pelecinidae)

2013 ◽  
pp. 1
Author(s):  
Michael S. Engel ◽  
David A. Grimaldi ◽  
Jaime Ortega-Blanco
Keyword(s):  
New Jersey ◽  
Early Cretaceous ◽  
Late Cretaceous ◽  
New Genus ◽  
New Genus And Species ◽  
The Baltic ◽  
New Synonymy ◽  
First Time

The proctotrupoid wasp family Pelecinidae (Proctotrupomorpha: Proctotrupoidea) is recorded in Early Cretaceous amber for the first time, previous amber inclusions being from the Late Cretaceous or Tertiary. Zoropelecinus zigrasi Engel & Grimaldi, new genus and species, is described and figured from an exquisitely preserved female in Albian-Cenomanian amber from Myanmar. The genus is similar to other fossil pelecinids of the genera Pelecinopteron Brues (Paleogene ambers of the Baltic and Siberia) and Henopelecinus Engel & Grimaldi (Turonian amber, New Jersey). Although two subfamilies have at times been recognized (or even as two families) the Iscopininae are clearly paraphyletic with respect to Pelecininae and therefore of no classificatory value and accordingly synonymized herein (new synonymy).

scholarly journals Wenlock and Pridoli (Silurian) crinoids from Saaremaa, western Estonia (Phylum Echinodermata)

2015 ◽  
Vol 89 (1) ◽  
pp. 72-81 ◽  
Author(s):  
William I. Ausich ◽  
Mark A. Wilson ◽  
Olev Vinn
Keyword(s):  
New Taxa ◽  
Type Species ◽  
New Genus ◽  
Taxonomic Revision ◽  
Species Level ◽  
New Genus And Species ◽  
Glacial Sediments ◽  
First Time

AbstractStudy of new collections of the Wenlock and Pridoli, Silurian, crinoids from Saaremaa, western Estonia, result in taxonomic revision, expanded ranges, and new taxa. Eucalyptocrinites regularis and Periechocrinus laevis are recognized outside of Sweden for the first time. Desmidocrinus laevigatus Ausich et al., 2012 is reassigned to Methabocrinus. Because the type species of Methabocrinus was previously known only from glacial sediments, the age and provenance of this genus are constrained for the first time. A new crotalocrinitid, Velocrinus coniculus new genus and species, is described. Although the Pridoli faunas of western Estonia contain only twelve species-level taxa assigned to nine genera, this fauna is one of the four richest Pridoli faunas known.

scholarly journals Sternbergia colchiciflora Waldst. et Kit. (Amaryllidaceae), a new genus and species in the flora of Kosovo

2020 ◽  
Vol 79 (2) ◽  
pp. 236-238
Author(s):  
Xhavit Mala ◽  
Qenan Maxhuni
Keyword(s):  
New Genus ◽  
Critically Endangered ◽  
New Genus And Species ◽  
Limited Distribution ◽  
Number Of Individuals ◽  
First Time

This paper reports Sternbergia colchiciflora Waldst. et Kit. as a new genus and species for the flora of Kosovo. Almost 30 adult individuals of this species were recorded for the first time in southwestern Kosovo during 2015, within the Canyon of the White Drin at Fshajt Bridge. Considering the low number of individuals and very limited distribution, this species should be treated as a critically endangered taxon in Kosovo.

Steringovermes notacanthi n. gen., n. sp. (Digenea: Fellodistomidae) from the deep-sea spiny eel Notacanthus bonaparte (Notacanthiformes: Notacanthidae) from the north eastern Atlantic and a new host record for Olssonium turneri

Zootaxa ◽  
2004 ◽  
Vol 684 (1) ◽  
pp. 1 ◽  
Author(s):  
RODNEY A. BRAY
Keyword(s):  
Deep Sea ◽  
New Genus ◽  
Host Record ◽  
Excretory Vesicle ◽  
New Genus And Species ◽  
New Host ◽  
New Host Record ◽  
The North ◽  
North Eastern ◽  
First Time

Steringovermes notacanthi, a new genus and species of fellodistomine digenean, is described from the deep-sea spiny eel Notacanthus bonaparte from below 1,000m depth in the north eastern Atlantic. It differs from other related genera in the unique combination of a V-shaped excretory vesicle, multilobate, mainly post-testicular ovary and extensive vitelline fields extending into both the foreand hindbody. In addition, the fellodistomine Olssonium turneri Bray & Gibson, 1980 is reported for the first time from a fish not of the genus Alepocephalus, namely the alepocephalid Narcetes stomias.

Sign in / Sign up

Export Citation Format

Share Document