EOPHILOBRYOIDELLA SINOANISICA NEW GENUS AND SPECIES, AN EARLY PHILOBRYID BIVALVE FROM THE UPPER ANISIAN (MIDDLE TRIASSIC) OF QINGYAN, SOUTHWESTERN CHINA

2004 ◽  
Vol 78 (2) ◽  
pp. 414-419 ◽  
Author(s):  
FRANK STILLER ◽  
JINHUA CHEN
Keyword(s):  
New Genus ◽  
Middle Triassic ◽  
Southwestern China ◽  
New Genus And Species

A new cockroach (Blattaria: Caloblattinidae) from the Upper Triassic Xujiahe Formation of Sichuan Province, southwestern China

2013 ◽  
Vol 44 (2) ◽  
pp. 167-174
Author(s):  
Yan Fang ◽  
Haichun Zhang ◽  
Bo Wang ◽  
Daran Zheng
Keyword(s):  
Elemental Analysis ◽  
Anterior Margin ◽  
New Genus ◽  
Sichuan Province ◽  
Upper Triassic ◽  
Southwestern China ◽  
New Taxon ◽  
New Genus And Species ◽  
X Ray ◽  
Xujiahe Formation

A new genus and species of the cockroach family Caloblattinidae, Dazhublattella lini gen. et sp.n., is described from the Upper Triassic Xujiahe Formation of Sichuan Province, in southwestern China. The new taxon is similar to the Triassic Caloblattina mathildae (Geinitz, 1883) (Vršanský & Ansorge 2007) in the venation and pattern, but differs in the less elongated forewing with arched anterior margin. An elemental analysis of the wing is undertaken using Energy Dispersive X-ray analysis.

A rare onychophoran-like lobopodian from the Lower Cambrian Chengjiang Lagerstätte, southwestern China, and its phylogenetic implications

2011 ◽  
Vol 85 (3) ◽  
pp. 587-594 ◽  
Author(s):  
Qiang Ou ◽  
Jianni Liu ◽  
Degan Shu ◽  
Jian Han ◽  
Zhifei Zhang ◽  
...  
Keyword(s):  
Lower Cambrian ◽  
New Genus ◽  
Southwestern China ◽  
New Taxon ◽  
New Genus And Species ◽  
Phylogenetic Implications ◽  
New Form ◽  
Close Relatives ◽  
Chengjiang Fossil Lagerstätte ◽  
Chengjiang Lagerstätte

Lobopodians, which diversified and flourished in the Cambrian seas, have long drawn much attention in that not only their extant close relatives, onychophorans and tardigrades, but euarthropods (Chelicerata, Myriapoda, Crustacea, and Hexapoda) may have been deeply rooted in stem-group lobopodians. Antennacanthopodia gracilis new genus and species is described and interpreted here as an “unarmoured” lobopodian from the Chengjiang fossil Lagerstätte (Early Cambrian, —520 Ma), Yunnan, southwestern China. This animal shares with other known Cambrian lobopodians such plesiomorphies (primitive characters) as onychophoran-like overall appearance; a metamerically segmented body covered by slightly sclerotized cuticle, and paired, unjointed lobopodal legs. Antennacanthopodia is also featured by a pair of frontal antennae, potential ocellus-like lateral visual organs, second antennae, a straight, voluminous midgut, diminutive spines arrayed on the leg and the trunk, well-developed leg musculature, highly sclerotized terminal leg pads, and presumptively a pair of posteriormost appendicules. This new taxon, with innovative characters (autapomorphies), furthers our understanding of early lobopodian diversification. Antennacanthopodia is considered closely allied to extant Onychophora based on considerable anatomical similarities. Taken together its “two-segmented” cephalization and appendage-bearing “ocular segment”, this new form may shed some new light on the arthropod groundplan.

A new pachypleurosaur (Reptilia: Sauropterygia) from the Middle Triassic of Monte San Giorgio, Switzerland

1989 ◽  
Vol 323 (1212) ◽  
pp. 1-73 ◽  
Keyword(s):  
New Genus ◽  
Middle Triassic ◽  
Cladistic Analysis ◽  
Morphological Description ◽  
New Genus And Species ◽  
Lower Jaw ◽  
Jaw Mechanics ◽  
The Status ◽  
Mode Of Life ◽  
Aquatic Mode

Pachypleurosaur material from the Middle Triassic ‘ Grenzbitumen’-horizon (Anis-Ladin boundary) of Monte San Giorgio, Kanton Tessin, Switzerland, is described as a new genus and species, Serpianosaurus mirigiolensis .A detailed morphological description is followed by a quantitative analysis. The taxon differs from other pachypleurosaurids primarily by its relatively large skull and its straight lower jaw. Rib pachyostosis is absent. In most characters the taxon remains plesiomorphous with respect to other pachypleurosaurs from the Middle Triassic deposits of Monte San Giorgio, which accords well with its early stratigraphic occurrence at that locality. Sexual dimorphism is expressed by the size and shape of the humerus. A cladistic analysis shows the Pachypleurosauridae to constitute the sistergroup of all other Sauropterygia. The Sauropterygia and the Placodontia together form a monophyletic group, the Euryapsida, which is subordinated to the Diapsida and to the Neodiapsida, but which is classifed outside the archosauromorph-lepidosauromorph dichotomy within the Neodiapsida. A concluding paragraph discusses the status of the pachypleurosaurs within the Sauropterygia. Skull structure, and jaw mechanics in particular, suggest a relatively plesiomorph position of pachypleurosaurs within the Sauropterygia. Their adaptation to an aquatic mode of life was not carried to the degree observed in other sauropterygians, and the ability for rapid and deep dives seems to have been limited by middle-ear structure.

The description and phenetic relationships of a new Ichthyosaur genus from the Upper Jurassic of England

1976 ◽  
Vol 13 (5) ◽  
pp. 668-683 ◽  
Author(s):  
C. McGowan
Keyword(s):  
New Genus ◽  
Middle Triassic ◽  
Upper Jurassic ◽  
Evolutionary Trends ◽  
Phenetic Analysis ◽  
New Genus And Species ◽  
The North ◽  
Phenetic Relationships ◽  
Principal Coordinates ◽  
Temporal Sequences

A large and previously unknown ichthyosaur is reported from the Kimmeridge Clay (Upper Jurassic) of Stowbridge, Norfolk, England. The only valid genera described from the Upper and Middle Jurassic are considered to be Ophthalmosaurus Seeley and Nannopterygius von Huene, and since the Stowbridge specimen is distinct from these, a new genus and species, Grendelius mordax gen. et sp. nov., are erected. Using cluster and principal coordinates analyses, G. mordax was found to have closest phenetic affinities with Platypterygius americanus (Nace) of the North American Cretaceous, and with an undescribed ichthyosaur from the Middle Triassic of Switzerland, and least phenetic affinity with Ophthalmosaurus discus (Marsh).The phenetic analysis also revealed that the division of the Ichthyosauria into latipinnates and longipinnates is questionable. Stenopterygius quadriscissus (Quenstedt), long considered a longipinnate, is herein shown to have closer phenetic affinity with latipinnate ichthyosaurs. The close phenetic affinity between the skulls of P. americanus and the undescribed Swiss ichthyosaur is inconsistent with currently held views of cranial evolution in ichthyosaurs, and points to the shortcomings of tracing evolutionary trends in temporal sequences of fossils.

A remarkable small ichthyosaur from the Upper Triassic of British Columbia, representing a new genus and species

1995 ◽  
Vol 32 (3) ◽  
pp. 292-303 ◽  
Author(s):  
C. McGowan
Keyword(s):  
British Columbia ◽  
New Genus ◽  
Middle Triassic ◽  
Lower Jurassic ◽  
Upper Triassic ◽  
New Taxon ◽  
New Genus And Species

A small, nearly complete ichthyosaur skeleton is described from the Upper Triassic of Williston Lake, in northeastern British Columbia. The age of the material, based on conodonts, is early Norian. Although the length of the entire skeleton would probably not have exceeded 1 m, there is no evidence of immaturity–quite the contrary. Named Hudsonelpidia brevirostris, the new taxon shares some features with Triassic taxa, as exemplified by Mixosaurus from the European Middle Triassic, and with post-Triassic ichthyosaurs like Ichthyosaurus, from the English Lower Jurassic. Mixosaurian characters include an elongate tibia with emarginated pre- and postaxial margins, and phalanges in the hindfin with pre- and postaxial notches. Like Ichthyosaurus, the humérus is elongate rather than broad, so too is the pubis and ischium. Mixosaurus is unusual among Triassic ichthyosaurs for having a relatively large orbit, but the orbit is even more prominent in Hudsonelpidia, probably because of the shortness of the snout. Hudsonelpidia has an unusually large femur that approaches the length of the humérus, dwarfing the rest of the hindfin. The rostrum is unique in being perforated by foramina, but this could possibly be an abnormality.

scholarly journals Lisubatrus dongzhiweii gen. et sp. nov. from the Gaoligong Mountains, China (Coleoptera: Staphylinidae: Pselaphinae)

2017 ◽  
Vol 57 (2) ◽  
pp. 593-601 ◽  
Author(s):  
Zi-Wei Yin
Keyword(s):  
New Genus ◽  
Identification Key ◽  
Southwestern China ◽  
New Genus And Species ◽  
Dorsal Lobe ◽  
Diagnostic Features

A new genus and species of the subfamily Pselaphinae, Lisubatrus dongzhiweii gen. et sp. nov., is described from the Gaoligong Mountains, southwestern China. Lisubatrus is assigned to the tribe Batrisini, subtribe Batrisina, and placed in a group of genera related to Dendrolasiophilus Nomura, 2010. Members of this group share the characteristic cephalic setose tufts, and have the aedeagus with a large basal capsule, and a well-developed dorsal lobe. Important diagnostic features of Lisubatrus are illustrated, and an identification key to distinguish Lisubatrus from the allied genera is given.

A new genus and species from southwestern China in the Frankliniella genus-group (Thysanoptera: Thripidae)

Zootaxa ◽  
2019 ◽  
Vol 2729 (1) ◽  
pp. 65
Author(s):  
HONGRUI ZHANG ◽  
LAURENCE A. MOUND ◽  
YONGHUI XIE
Keyword(s):  
New Species ◽  
New Genus ◽  
Southwestern China ◽  
New Genus And Species ◽  
Small Pore

A new genus and species, Yaobinthrips yangtzei, are described from Southwestern China sharing many character states with the Austro-Oriental genus Parabaliothrips within the Frankliniella genus-group. Within this group the new species is distinguished by the presence of tergal craspeda, a pair of uniquely bulbous modified setae on the fore tibiae, enlarged fore femora with a basal tooth, and paired small pore plates on sternum VI of females.

A new Middle Triassic genus and species of Mylacridae (Blattodea) from China

Zootaxa ◽  
2007 ◽  
Vol 1660 (1) ◽  
pp. 53-59 ◽  
Author(s):  
ZHU LI ◽  
YOUCHONG HONG ◽  
DING YANG
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
New Genus ◽  
Middle Triassic ◽  
Shaanxi Province ◽  
New Genus And Species ◽  
Scanning Electron

Shaanxi Entomofauna is important in the study of insect’s evolution from Paleozoic to Mesozoic. A new genus and species, Cathayiblatta longata gen. et sp. nov., of Mylacridae (Blattodea) from Middle Triassic is described. The new genus and species was found in Tongchuan City, Shaanxi Province of China, and the fossil referred to a new member of Tongchuan Entomassemblage of Shaanxi Entomofauna. The ultrastructure of wing was observed through scanning electron microscope. Comparison was made between the new genus and related genera Hemimylacris and Metaxyblatta.

scholarly journals Gaoligongidris planodorsa, a New Genus and Species of the Ant Subfamily Myrmicinae from China with a Key to the Genera of Stenammini of the World (Hymenoptera: Formicidae)

Sociobiology ◽  
2014 ◽  
Vol 59 (2) ◽  
pp. 331
Author(s):  
Zheng-Hui Xu
Keyword(s):  
New Genus ◽  
Nature Reserve ◽  
Southwestern China ◽  
Hengduan Mountains ◽  
New Genus And Species ◽  
Oriental Region ◽  
The World

A new genus and species of the ant subfamily Myrmicinae collected from the Gaoligong Mountain Nature Reserve of the Hengduan Mountains, southwestern China, is described. The new genus, Gaoligongidris gen. nov., is close to Lasiomyrma Terayama & Yamane, but with anterior clypeal margin not angled, metanotal groove deeply impressed, propodeal spiracles large, propodeal spines long and slender, and petiolar peduncle longer than the node. The new genus is distributed in the Oriental region and belongs to the tribe Stenammini of Myrmicinae. A key to the known genera of Stenammini of the world based on worker and queen castes is provided.

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