The skeletal anatomy of Manchurochelys manchoukuoensis (Pan-Cryptodira: Sinemydidae) from the Lower Cretaceous Yixian Formation

2021 ◽  
pp. 1-17
Author(s):  
Lan Li ◽  
Chang-Fu Zhou ◽  
Márton Rabi
Keyword(s):  
Lower Cretaceous ◽  
Yixian Formation

scholarly journals Completely preserved cockroaches of the family Mesoblattinidae from the Upper Jurassic-Lower Cretaceous Yixian Formation (Liaoning Province, NE China)

2013 ◽  
Vol 64 (4) ◽  
pp. 291-304 ◽  
Author(s):  
Dandan Wei ◽  
Dong Ren
Keyword(s):  
Lower Cretaceous ◽  
Hind Wing ◽  
Upper Jurassic ◽  
Morphological Characters ◽  
Yixian Formation ◽  
Liaoning Province ◽  
Tergal Glands ◽  
The Family ◽  
Left And Right ◽  
First Time

Abstract Although cockroaches were the dominant insects in various Paleozoic and Mesozoic insect assemblages, their general morphology was extremely conservative. One of the most common of them, the Jurassic-Cretaceous family Mesoblattinidae, is described here for the first time on the basis of completely preserved specimens. Ninety-two specimens of Perlucipecta aurea gen. et sp. n. reveal details of head, mandible, male tergal glands and terminal hook; cercal, leg and antennal sensilla. Its congener, P. vrsanskyi is described from the same sediments of the Yixian Formation (Upper Jurassic-Lower Cretaceous). The forewing venation variability of P. aurea, analysed for the first time in this family is nearly identical (CV = 6.23 %) with variability of two species of family Blattulidae that occur at the same locality (CV = 6.22 %; 5.72 %). The transitional nature of morphological characters represented by asymmetry between left and right wings (simple/branched forewing SC and hind wing M) in P. aurea documents the phylogenetic relation between the families Mesoblattinidae and Ectobiidae

Telmaeshna paradoxica gen. et sp. nov., a new fossil dragonfly (Insecta: Odonata: Anisoptera) from the Yixian Formation, Liaoning, China

Zootaxa ◽  
2008 ◽  
Vol 1681 (1) ◽  
pp. 62 ◽  
Author(s):  
BINGLAN ZHANG ◽  
DONG REN ◽  
HONG PANG
Keyword(s):  
Phylogenetic Relationships ◽  
Lower Cretaceous ◽  
New Genus ◽  
Upper Jurassic ◽  
Yixian Formation ◽  
Liaoning Province ◽  
New Family

Telmaeshna paradoxica gen. et sp. nov., is described from the Upper Jurassic to Lower Cretaceous Yixian Formation, near Chaomidian Village, Beipiao City, Liaoning Province, China. It is included in the Anisoptera: Aeshnoptera: Aeshnomorpha: Panaeshnida, on the basis of the following characters: strongly elongated pterostigma; well-defined anal loop and Rspl; undulated RP2, RP3/4 and MA; divided hypertriangle and discoidal triangle; and prolonged gaff. It cannot be assigned to any described extant or extinct family of Panaeshnida, but we refrain from erecting a new family to accommodate it until more features (forewing, body characters) are known. Consequently, this new genus is provisionally retained as family uncertain. Its phylogenetic relationships within Anisoptera are discussed.

scholarly journals New material of Longipteryx (Aves: Enantiornithes) from the Lower Cretaceous Yixian Formation of China with the first recognized avian tooth crenulations

Zootaxa ◽  
2015 ◽  
Vol 3941 (4) ◽  
pp. 565 ◽  
Author(s):  
XURI WANG ◽  
CAIZHI SHEN ◽  
SIZHAO LIU ◽  
CHUNLING GAO ◽  
XIAODONG CHENG ◽  
...  
Keyword(s):  
Lower Cretaceous ◽  
Yixian Formation ◽  
New Material

New protodiplatyids (Insecta: Dermaptera) from the Lower Cretaceous Yixian Formation of northeastern China

2016 ◽  
Vol 64 ◽  
pp. 59-66 ◽  
Author(s):  
Changyue Xing ◽  
Chungkun Shih ◽  
Yunyun Zhao ◽  
Dong Ren
Keyword(s):  
Lower Cretaceous ◽  
Northeastern China ◽  
Yixian Formation

Glabrimycetoporus amoenus, a new tachyporine genus and species of Mesozoic Staphylinidae (Coleoptera) from Liaoning, China

Zootaxa ◽  
2009 ◽  
Vol 2225 (1) ◽  
pp. 63-68 ◽  
Author(s):  
YANLI YUE ◽  
YUNYUN ZHAO ◽  
DONG REN
Keyword(s):  
Lower Cretaceous ◽  
New Genus ◽  
Abdominal Tergite ◽  
Upper Jurassic ◽  
Yixian Formation ◽  
Liaoning Province ◽  
New Genus And Species ◽  
Ne China

A new genus and species of well-preserved fossil Staphylinidae is described and illustrated. Glabrimycetoporus amoenus Yue, Zhao & Ren, gen. et sp. nov. is assigned to the tribe Mycetoporini in the subfamily Tachyporinae based on the following characters: head more or less inserted into prothorox, the tenth abdominal tergite broad and oblong; antennal insertions exposed and located anterior to a line drawn between anterior edges of eyes; body strongly tapered to the narrow head and abdominal apex. The specimen was discovered in the Upper Jurassic–Lower Cretaceous Yixian Formation of Beipiao City, Liaoning Province, NE China.

New Aetheogrammatidae (Insecta: Neuroptera) from the Lower Cretaceous Yixian Formation, China

2015 ◽  
Vol 55 ◽  
pp. 25-31 ◽  
Author(s):  
Qiang Yang ◽  
Vladimir N. Makarkin ◽  
Chungkun Shih ◽  
Dong Ren
Keyword(s):  
Lower Cretaceous ◽  
Yixian Formation

The supposed giant spider Mongolarachne chaoyangensis, from the Cretaceous Yixian Formation of China, is a crayfish

2019 ◽  
Vol 2 (5) ◽  
pp. 515-522
Author(s):  
PAUL A. SELDEN ◽  
ALISON N. OLCOTT ◽  
MATT R. DOWNEN ◽  
DONG REN ◽  
CHUNGKUN SHIH ◽  
...  
Keyword(s):  
Fluorescence Microscopy ◽  
Lower Cretaceous ◽  
Yixian Formation

A supposed giant spider, Mongolarachne chaoyangensis Cheng, Liu, Huang, Liu, Li & Li, 2019, from the Lower Cretaceous Yixian Formation of China, is here shown, with the aid of fluorescence microscopy, to be a faked fossil spider, with a fossil crayfish as its core. We tentatively place M. chaoyangensis in Cricoidoscelosus aethus Taylor, Schram & Shen, 1999 n. syn..

A new family of Cavilabiata from the Lower Cretaceous Yixian Formation, China (Odonata: Anisoptera)

Zootaxa ◽  
2007 ◽  
Vol 1469 (1) ◽  
pp. 59-64 ◽  
Author(s):  
QI-BIN LIN ◽  
DI-YING HUANG ◽  
A. NEL
Keyword(s):  
Lower Cretaceous ◽  
New Genus ◽  
Yixian Formation ◽  
East China ◽  
Wing Venation ◽  
North East ◽  
New Family ◽  
Special Pattern

A new genus Nodalula gen. nov. and species Nodalula dalinghensis gen. et sp. nov. is described on the basis of a nearly complete specimen from the Lower Cretaceous of North-east China. Its special pattern of wing venation differs from those of the known Mesozoic Cavilabiata genera and allows us to include it in the new family Nodalulaidae within the Neobrachystigmata.

A new fossil genus of the family Glaphyridae (Coleoptera: Scarabaeoidea) from the Lower Cretaceous Yixian Formation

Zootaxa ◽  
2011 ◽  
Vol 2811 (1) ◽  
pp. 47 ◽  
Author(s):  
G. V. NIKOLAJEV ◽  
BO WANG ◽  
HAICHUN ZHANG
Keyword(s):  
Lower Cretaceous ◽  
Inner Mongolia ◽  
New Genus ◽  
Yixian Formation ◽  
New Genus And Species ◽  
The Family ◽  
Fossil Genus

Lithohypna chifengensis, new genus and species of the family Glaphyridae MacLeay, 1819 is described and illustrated from the Lower Cretaceous Yixian Formation of Liutiaogou of Inner Mongolia, China.

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