Description and revised diagnosis of Asia’s first recorded pachycephalosaurid, Sinocephale bexelli gen. nov., from the Upper Cretaceous of Inner Mongolia, China

2021 ◽  
pp. 981-992
Author(s):  
David C. Evans ◽  
Caleb M. Brown ◽  
Hailu You ◽  
Nicolás E. Campione
Keyword(s):  
Inner Mongolia ◽  
Upper Cretaceous ◽  
New Genus ◽  
Original Description ◽  
Systematic Revision ◽  
Posterior Parietal ◽  
Inner Mongolia Autonomous Region ◽  
First Time ◽  
To Receive ◽  
Comparative Description

The first recorded pachycephalosaurid dinosaur from outside of North America, “Troodon” bexelli, was described from the Upper Cretaceous of Nei Mongol (Inner Mongolia) Autonomous Region, China, in 1953 based on a partial parietal dome. The holotype, and only, specimen has not been redescribed or figured since the original description and is currently considered lost. As a result, researchers have generally considered this taxon a nomen dubium. Here, we identify and describe two high-fidelity plaster casts of the holotype and assign them as plastotypes for this taxon. Examining these replicas allows for an updated comparative description and complete systematic revision of this enigmatic taxon and its inclusion within a phylogenetic analysis for the first time. The material is distinct from all other pachycephalosaur material and can be diagnosed by a single autapomorphy (a wide and deeply embayed posterior parietal margin) and a unique combination of characters, including lack of primary nodes on the parietal and a highly arched, fully roofed temporal chamber. A new genus, Sinocephale gen. nov. is established to receive this species as Sinocephale bexelli. Sinocephale bexelli is phylogenetically removed from Stegoceras (formerly “Troodon”), to which it was previously affiliated, and recovered as a pachycephalosaurine pachycephalosaurid.

A water-skiing chresmodid from the Middle Jurassic in Daohugou, Inner Mongolia, China (Polyneoptera: Orthopterida)

Zootaxa ◽  
2008 ◽  
Vol 1762 (1) ◽  
pp. 53 ◽  
Author(s):  
XIN-WEN ZHANG ◽  
DONG REN ◽  
HONG PANG ◽  
CHUNG-KUN SHIH
Keyword(s):  
New Species ◽  
Middle Jurassic ◽  
Inner Mongolia ◽  
New Genus ◽  
Autonomous Region ◽  
Jiulongshan Formation ◽  
First Time ◽  
A New Species

A new genus with a new species (Jurachresmoda gaskelli gen. et sp. nov.) of Chresmodidae (Insecta: Polyneoptera: Orthopterida) is described and illustrated. They were collected from the Middle Jurassic in Daohugou, Jiulongshan Formation, Inner Mongolia (Nei Mongol Autonomous Region), China. J. gaskelli have fringing hairs on tarsi and a part of tibiae of mid legs. These hairs and leg structures were probably associated with its water-skiing locomotion on freshwater. A high number of tarsomeres, e. g. ultra-articulated tarsi as reported in other species of Chresmodidae, are also found for this new species. But, these true tarsi are mixed with some wrinkles resulted from dehydration and compression during fossilization process. Nymphs of the new species are also described. This is the first time that long and segmented cerci of the nymph are described in Chresmodidae.

Taxonomy of the clam shrimp Halysestheriidae (Diplostraca: Spinicaudata) from the Upper Cretaceous Nenjiang Formation in central Dayangshu Basin of eastern Inner Mongolia, northeastern China

2021 ◽  
Vol 4 (2) ◽  
pp. 156-164
Author(s):  
GANG LI
Keyword(s):  
Inner Mongolia ◽  
Type Species ◽  
Upper Cretaceous ◽  
Original Description ◽  
Northeastern China ◽  
Clam Shrimp ◽  
Taxonomic Research ◽  
Eastern Inner Mongolia

A re-examination of the holotype of the type species Halysestheria biformis Zhang & Chen in Zhang et al., 1976 has revealed new characters that were overlooked in the original description. And a taxonomic research was carried out on the clam shrimp collected from the Upper Cretaceous Nenjiang Formation in the central Dayangshu Basin in Ganhe, Oroqen Autonomous Banner, eastern Inner Mongolia. The discovery of Halysestheria biformis indicates the fossil bearing horizon belongs to the upper Santonian First Member of the Nenjiang Formation.

DESCRIPTION OF PARABROCHYMENA, NEW GENUS, AND REDEFINITION AND REVIEW OF BROCHYMENA AMYOT AND AUDINET-SERVILLE (HEMIPTERA: PENTATOMIDAE), WITH CONSIDERATIONS ON NATURAL HISTORY, CHOROLOGICAL AFFINITIES, AND EVOLUTIONARY RELATIONSHIPS

1992 ◽  
Vol 124 (S163) ◽  
pp. 3-75 ◽  
Author(s):  
Marie-Claude Larivière
Keyword(s):  
Natural History ◽  
Type Species ◽  
New World ◽  
New Genus ◽  
Original Description ◽  
Morphological Characters ◽  
Generic Level ◽  
Species Groups ◽  
Systematic Relationships ◽  
First Time

AbstractFrom the endemic New World halyine genus Brochymena, two genera are recognized. New morphological characters at the generic level are described. Parabrochymena, new genus, with Pentatoma arborea Say as type species, is erected to contain 10 taxa formerly included in Brochymena. New combinations are Parabrochymena aculeata (Distant), P. apiculata (Van Duzee), P. arborea (Say), P. barberi barberi (Ruckes), P. barberi diluta (Blatchley), P. cuspidata (Distant), P. enigmatica (Ruckes), P. florida (Ruckes), P. haedula (Stål), and P. poeyi (Guérin-Méneville). Brochymena is redefined with 20 taxa: B. affinis Van Duzee, B. cariosa Stål, B. carolinensis (Westwood), B. chelonoides Ruckes, B. dilata Ruckes, B. exardentia Ruckes, B. hoppingi Van Duzee, B. humeralis Ruckes, B. laevigata Ruckes, B. lineata Ruckes, B. marginella Stål, B. myops Stål, B. parva Ruckes, B. punctata punctata Van Duzee, B. punctata pallida Blatchley, B. pilatei Van Duzee, B. quadripustulata (Fabricius), B. splendida Ruckes, B. sulcata Van Duzee, and B. tenebrosa Walker. Four synonymies are established: B. marginella Stål = B. carolinensis (Westwood); B. pilatei Van Duzee = B. sulcata Van Duzee; B. laevigata Ruckes = B. myops Stål; B. exardentia Ruckes = B. lineata Ruckes. Lectotypes are designated for B. affinis Van Duzee, B. cariosa Stål, B. myops Stål, B. punctata pallida Blatchley, and B. p. punctata Van Duzee. Species groups of Brochymena are characterized, and a key to all taxa is presented for the first time. As appropriate, for each species of Brochymena, the following are provided: citation of original description, synonymies, type material, diagnosis, description, geographical distribution, taxonomic comments, natural history, and illustrations of important structural characters. Chorological affinities are presented and systematic relationships are hypothesized.

A new fossil snipe fly with long proboscis from the Middle Jurassic of Inner Mongolia, China (Diptera: Rhagionidae)

Zootaxa ◽  
2019 ◽  
Vol 4691 (2) ◽  
pp. 153-160
Author(s):  
YE HAN ◽  
YAJING CAI ◽  
DONG REN ◽  
YONGJIE WANG
Keyword(s):  
Middle Jurassic ◽  
Inner Mongolia ◽  
New Genus ◽  
Northeastern China ◽  
New Genus And Species ◽  
New Synonym ◽  
Jiulongshan Formation ◽  
First Time

A new genus and species of rhagionids with a long proboscis, Elliprhagio macrosiphonius gen. et sp. nov., is described from the Middle Jurassic Jiulongshan Formation in Daohugou, Inner Mongolia, China, which is considered to be the earliest hematophagous rhagionid described hitherto according to the typically piercing and sucking mouthparts. All previously documented rhagionids from northeastern China are reviewed a key to genera of Rhagionidae from Daohugou is provided for the first time. The genus Daohugorhagio Zhang, 2013 is considered as a new synonym of Trichorhagio Zhang, 2013. 

On the taxonomy of two rare freshwater crabs (Decapoda, Brachyura, Chasmocarcinidae and Hymenosomatidae) from Palau, western Pacific

Crustaceana ◽  
2019 ◽  
Vol 92 (8) ◽  
pp. 979-996
Author(s):  
Peter K. L. Ng
Keyword(s):  
New Genus ◽  
New Caledonia ◽  
Original Description ◽  
Western Pacific ◽  
The Third ◽  
Freshwater Crabs ◽  
First Time

Abstract The taxonomy of two species of secondary freshwater crabs endemic to Palau is discussed. Males of the chasmocarcinid Australocarcinus palauensis Davie & Guinot, 1996 (Trogloplacinae), previously known only from one female, are reported for the first time and the species is redescribed and figured. This species is closest to A. kanaka Davie & Guinot, 1996, from New Caledonia, but can be distinguished by the form of the carapace, third maxillipeds and gonopods. The rare hymenosomatid Neorhynchoplax inermis (Takeda & Miyake, 1971) (Hymenosomatinae), known only from the original description, is here shown to be distinct from species of Neorhynchoplax Sakai, 1938 s. str., differing in its complete absence of a true rostrum, absence of postocular lobes, the relatively short ischia and meri of the third maxillipeds, unarmed ambulatory dactyli and strongly twisted male first gonopod. The species is redescribed and transferred to a new genus, Insulaplax.

On a Remarkable New Nematode, Lappetascaris lutjani gen. et sp. nov. (Anisakidae: Ascaridoidea) from Marine Fishes of Karachi and an Account of Thynnascaris inquies (Linton, 1901) n.comb. and Goezia intermedia n.sp.

1965 ◽  
Vol 39 (4) ◽  
pp. 313-342 ◽  
Author(s):  
Suraiya Rasheed
Keyword(s):  
Comparative Study ◽  
Related Species ◽  
New Genus ◽  
Original Description ◽  
Marine Fishes ◽  
Type Host ◽  
First Time

1. Three exceedingly interesting parasites of the super-family Ascaridoidea have been discussed in this paper. A new genus Lappetascaris is described from two different kinds of fish and a new subfamily has been established to include this genus. The latter is based on its peculiar head structures and the cuticle.2. Thynnascaris inquies (Linton, 1901) n.comb, is reported for the first time since its original description, from the type host of a new locality.3. Goezia intermedia n.sp. is described and a comparative study of the related species has been carried out.

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