scholarly journals The tetrapod fauna of the upper Permian Naobaogou Formation of China: 3. Jiufengia jiai gen. et sp. nov., a large akidnognathid therocephalian

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6463 ◽  
Author(s):  
Jun Liu ◽  
Fernando Abdala

Recent field trips to Member III of the Naobaogou Formation, Nei Mongol, China yielded new fossil discoveries, increasing our knowledge of the late Permian continental fauna from China. We present here a new large therocephalian, Jiufengia jiai gen. et sp. nov., represented by a partial skull with mandibles and part of the postcranial skeleton. This is the second therocephalian recovered from the Naobaogou faunal association and, in turn, the second akidnognathid from this unit and from China. The new taxon shows clear differences from Shiguaignathus wangi, the akidnogathid previously reported from the Naobaogou Formation: the presence of four upper postcanines, of a large suborbital vacuity, and the flat ventral surface of the vomer, lacking a ventromedian crest. Updating a previous phylogeny of therocephalians, we recover the new species as a basal member of Akidnognathidae, above a basal polytomy including the other two Laurasian akidnognathids, Shiguaignathus and Annatherapsidus, adding support to the hypothesis that this group originated in Laurasia.

Zootaxa ◽  
2019 ◽  
Vol 4701 (6) ◽  
pp. 501-519 ◽  
Author(s):  
MAGDI S. EL-HAWAGRY ◽  
MAHMOUD S. ABDEL-DAYEM ◽  
HATHAL M. AL DHAFER

Egyptian and Saudi Arabian Thyridanthrax spp. collected in field trips or preserved in the Efflatoun’s insect collection in Cairo University were taxonomically studied. One new species, T. elegansoides sp. nov., is herein described, and two species, T. decipulus (Austen) and T. polyphemus (Wiedemann), are newly recorded from Egypt. Ten species are treated: one species from the Kingdom of Saudi Arabia, T. anomalus Greathead; two species from Egypt and the Kingdom of Saudi Arabia, T. decipulus (Austen) and T. perspicillaris (Loew); and seven species from Egypt: T. elegans (Wiedemann), T. elegansoides sp. nov., T. griseolus (Klug), T. incanus (Klug), T. lotus (Loew), T. obliteratus (Loew), and T. polyphemus (Wiedemann). Taxonomic comments, an identification key to species, diagnoses, and photographs of some species and genitalia are provided. Based on wing morphology and male genitalic characters, T. lotus clearly does not fit in the genus Thyridanthrax, and may need to be placed elsewhere, nevertheless it is not clear whether it can be included in any of the other currently recognized genera in the tribe Villini. It is here kept in Thyridanthrax until a more rigorous study can be conducted to better ascertain its position in the Villini. 


2021 ◽  
Vol 4 (2) ◽  
pp. 171-177
Author(s):  
CORENTIN JOUAULT ◽  
ANDRÉ NEL

Examination of new fossil specimens of Prosyntexis from the Lower Cretaceous Crato Formation of Brazil reveled a new species namely Prosyntexis sennlaubi sp. nov. To ensure the validity of the new taxon we examined previously described and figured specimens but we also figured an additional specimen of Prosyntexis gouleti Sharkey, 1990. The new species can be differentiated from the other Prosyntexis species of the Crato formation by its larger size but also in having the cell 2R1 small, the cell 2M small and short, the cell 3R1 narrow and the vein a directed toward wing apex. We performed a Geometric Morphometric Analysis (GMA) to estimate the variation in the forewing venation of the two species from the Crato Formation and ensure our placement.


2007 ◽  
Vol 178 (3) ◽  
pp. 201-216 ◽  
Author(s):  
Komsorn Lauprasert ◽  
Gilles Cuny ◽  
Eric Buffetaut ◽  
Varavudh Suteethorn ◽  
Kumthorn Thirakhupt

Abstract A new taxon of a broad-snouted goniopholidid, Siamosuchus phuphokensis, gen. et sp. nov., was discovered in the Sao Khua Formation (ante-Aptian), northeastern Thailand. The specimen is described on the basis of an incomplete skeleton showing the premaxillae, maxillae, nasals, left lacrimal, frontal, left jugal, right postorbital, caudal part of the cranial table, most of the right part of the postcranial skeleton, and several heavily sculptured osteoderms. S. phuphokensis is distinguished from the other broad-snouted goniopholidids on the basis of the following characters: penetration of the nasals in the narial border; presence of a robust and high median ridge on the interorbital surface; lateral margin of the frontal forming the medial edge of the orbit; supraoccipital exhibiting a wide pentagonal shape. A phylogenetic analysis using 101 characters for 29 mesoeucrocodylian taxa and 3 outgroup taxa supports the monophyly of the family Goniopholididae. In addition, the Thai specimen forms a clade with the European Goniopholis. Based on our strict consensus tree, the generic name Goniopholis should be restricted to the European forms only.


Zootaxa ◽  
2017 ◽  
Vol 4281 (1) ◽  
pp. 120
Author(s):  
RODNEY R. CAVICHIOLI1 ◽  
GABRIEL MEJDALANI

A new species of the Neotropical sharpshooter genus Iragua Melichar, 1926, I. albinoi sp. nov., is described and illustrated from the Colombian department of Huila (holotype deposited in Coleção Entomológica Pe. Jesus S. Moure, Departamento de Zoologia, Setor de Ciências Biológicas, Universidade Federal do Paraná). The new taxon can be readily distinguished from the other 13 known species of the genus by the presence of a pair of unciform processes at the aedeagal atrium, as well as by the color pattern of the forewings. The first detailed description of the female terminalia of a species of Iragua (I. ferruginea Cavichioli, 1991 from the Brazilian state of Rondônia) and an updated key to males of the genus are also provided. 


Phytotaxa ◽  
2017 ◽  
Vol 308 (2) ◽  
pp. 295
Author(s):  
LUIS GIL GALVÁN-GONZÁLEZ ◽  
ROSA CERROS-TLATILPA ◽  
ADOLFO ESPEJO-SERNA ◽  
ANA ROSA LÓPEZ-FERRARI

Cladocolea spathiflora, a new species from Guerrero, Mexico, is described and illustrated. The new taxon is compared with C. pringlei and C. grahamii, species with similar characteristics; however, the flowers of C. spathiflora are associated to a spathaceous receptacle, while in the other two species the flowers are sessile on the axis of the inflorescence. An identification key and a distribution map of these taxa are included.


2007 ◽  
Vol 39 (3) ◽  
pp. 205-210 ◽  
Author(s):  
Diana MUÑIZ ◽  
Néstor L. HLADUN

Abstract:The new species, Mycocalicium llimonae, is described based on specimens collected from cones of Pinus halepensis in the west of the Iberian Peninsula. The new taxon is compared with the other species of the genus Mycocalicium in the Iberian Peninsula, particularly Mycocalicium subtile, and also with other genera in the Mycocaliciaceae.


Phytotaxa ◽  
2014 ◽  
Vol 156 (4) ◽  
pp. 229 ◽  
Author(s):  
Cheng-Wei Chen ◽  
ATSUSHI EBIHARA ◽  
WEN LIANG CHIOU ◽  
CHIA WEI LI

A new species of vittarioid ferns (Pteridaceae) that has long been regarded as Haplopteris amboinensis or H. forrestiana (a synonym of H. doniana), is described here as Haplopteris yakushimensis. Both macro- and micromorphological characteristics were compared with these two species. Chartaceous matured fronds, shallowly grooved adaxial costae and obtuse carinate abaxial costae are the diagnostic characteristics that distinguish H. yakushimensis from the other species in the genus. A phylogeny based on plastid regions chlL, ndhF and matK of 14 East-Asian Haplopteris species, including our new taxon is presented here.


Zootaxa ◽  
2021 ◽  
Vol 5040 (3) ◽  
pp. 388-403
Author(s):  
KALESH SADASIVAN

A new species of Pomponia Stål, 1866 (Hemiptera: Cicadidae) from the P. linearis group is described from the Western Ghats of southern India. The hitherto unknown species, P. pseudolinearis sp. nov., is easily diagnosed from the other Pomponia species of the Western Ghats based on the unique structure of its male genitalia, low to mid-altitudinal distribution, and the characteristic male song. The new taxon is a member of the P. linearis species group according to its morphology and the distinctly protruding paramedian basal pygofer lobe suggests its affiliation to the linearis species complex inside the P. linearis species group. The divergent basal lobes of pygofer of males of this species are the critical characteristic feature that can be used to distinguish it from all the other members of the P. linearis species complex. It appears that this cryptic, common, and widespread species of the southern Western Ghats region was confused with P. linearis in the past. Pomponia linearis may not occur in the Western Ghats and its records are possibly a result of erroneous identification due to species lumping with similar taxa of linearis species complex distributed from Northeast India to Vietnam. In addition, some new morphometric indices are introduced. Notes on other known Pomponia species of the Western Ghats, namely P. cyanea Fraser, 1948 and P. zebra Bliven, 1964 are also provided with P. folei Fraser, 1948 treated as a nomen nudum.  


Phytotaxa ◽  
2018 ◽  
Vol 351 (4) ◽  
pp. 273 ◽  
Author(s):  
SACHIN M. PATIL ◽  
RONAK N. KACHHIYAPATEL ◽  
RAVI S. PATEL ◽  
KISHORE S. RAJPUT

A new species, Ophioglossum gujaratense, is described from Gujarat state (India). It resembles O. polyphyllum in the presence of sheathing rhizomorph and 1–4 (rarely 5) trophophylls. On the other hand, rhizomorph morphology, common stalk, trophophyll arrangement, leaf lamina and leaf base make it distinct from O. polyphyllum. Stoloniferous roots, trophophyll number and their arrangement of the new species also resemble O. parvifolium and O. nudicaule. However, both these species lack a sheath around the leaf-stem base. A comparative account of morphologically similar species, viz. O. gujaratense, O. polyphyllum, O. parvifolium and O. nudicaule is provided. The distinctness of the new taxon has been confirmed using molecular data from chloroplast genome markers viz rbcL, trnH-psbA, trnF-trnE and trnL-trnF.


2008 ◽  
Vol 65 (3) ◽  
pp. 359-368 ◽  
Author(s):  
M. Dematteis

Two new species of the South American genus Lessingianthus (Asteraceae: Vernonieae) are described and illustrated. One of these species, Lessingianthus arctatus, bears a resemblance to L. linearis (Spreng.) H.Rob. and L. rosmarinifolius (Less.) H.Rob., but can be separated from them by its almost glabrous phyllaries, solitary heads and longer internodes. The other new taxon, Lessingianthus longicuspis, can be easily separated from L. cataractarum (Hieron.) H.Rob. and L. bardanoides (Less.) H.Rob., and other taxa of the genus, by the combination of petiolate leaves, aristate phyllaries and inflorescence bracts alternate to the heads. Four other taxa previously included in Vernonia are transferred to the genus Lessingianthus.


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