Using carbon isotopes and organic composition to decipher climate and tectonics in the Early Cretaceous: An example from the Hailar Basin, Inner Mongolia, China

2021 ◽  
Vol 118 ◽  
pp. 104674
Author(s):  
Tim A. Moore ◽  
Ofentse M. Moroeng ◽  
Jian Shen ◽  
Joan S. Esterle ◽  
Roman C. Pausch
Keyword(s):  
Carbon Isotopes ◽  
Early Cretaceous ◽  
Inner Mongolia ◽  
Organic Composition ◽  
Hailar Basin

Ordosemys leios, n.gen., n.sp., a new turtle from the Early Cretaceous of the Ordos Basin, Inner Mongolia

1993 ◽  
Vol 30 (10) ◽  
pp. 2128-2138 ◽  
Author(s):  
Donald B. Brinkman ◽  
Jiang-Hua Peng
Keyword(s):  
Early Cretaceous ◽  
Inner Mongolia ◽  
Cervical Vertebrae ◽  
Ordos Basin ◽  
Sister Group ◽  
Sister Group Relationship ◽  
Articular Surfaces ◽  
Caudal Vertebrae ◽  
The Ordos Basin

Ordosemys leios, n.gen., n.sp., from the Early Cretaceous Luohandong Formation, Zhidan Group, Ordos Basin, Inner Mongolia, is a primitive aquatic turtle with a reduced, fenestrated plastron. It shares with the members of the Centrocryptodira the presence of well-formed articular surfaces on the cervical and caudal vertebrae. Within the Centrocryptodira, characters of the cervical vertebrae suggest it is more closely related to the Polycryptodira than is the Meiolaniidae. Ordosemys shares with the Chelydridae the presence of two procoelous anterior caudals, but this character may be primitive for the Polycryptodira. Characters of the basicranial region of the braincase shared by Ordosemys and the Chelonioidea support a sister-group relationship between these two taxa, but a sister-group relationship between Ordosemys and the Polycryptodira is more strongly supported by characters shared by the Chelonioidea and other members of the Polycryptodira.

Early Cretaceous supradetachment basins in the Hohhot metamorphic core complex, Inner Mongolia, China

2010 ◽  
Vol 22 (1) ◽  
pp. 45-60 ◽  
Author(s):  
B. D. Ritts ◽  
A. K. Berry ◽  
C. L. Johnson ◽  
B. J. Darby ◽  
G. A. Davis
Keyword(s):  
Early Cretaceous ◽  
Inner Mongolia ◽  
Metamorphic Core Complex ◽  
Core Complex ◽  
Metamorphic Core

A new silky lacewing (Neuroptera: Psychopsidae) from the Middle Jurassic of Inner Mongolia, China

Zootaxa ◽  
2010 ◽  
Vol 2663 (1) ◽  
pp. 59 ◽  
Author(s):  
YUANYUAN PENG ◽  
VLADIMIR N. MAKARKIN ◽  
QIANG YANG ◽  
DONG REN
Keyword(s):  
New Species ◽  
Early Cretaceous ◽  
Middle Jurassic ◽  
Inner Mongolia ◽  
Type Species ◽  
Colour Pattern ◽  
Disruptive Coloration ◽  
Jiulongshan Formation

Cretapsychops decipiens sp. nov. is described from the Middle Jurassic Jiulongshan Formation of Daohugou, Inner Mongolia in China. The new species is distinguished from the type species known from the Early Cretaceous Wealden Supergroup of England mainly by its longer costal gradate series and distinctive colour pattern of the forewings. The disruptive coloration of its forewings may perform a defensive (concealment) function. The structure of CuA is peculiar in Cretapsychops and is different from that of all other known psychopsid genera.

A nearly complete skeleton of a new troodontid dinosaur from the Early Cretaceous of the Ordos Basin, Inner Mongolia, People's Republic of China

1993 ◽  
Vol 30 (10) ◽  
pp. 2163-2173 ◽  
Author(s):  
Dale A. Russell ◽  
Zhi-Ming Dong
Keyword(s):  
Early Cretaceous ◽  
Inner Mongolia ◽  
Hind Limb ◽  
New Genus ◽  
Ordos Basin ◽  
New Genus And Species ◽  
Republic Of China ◽  
Vertebral Count ◽  
The Ordos Basin ◽  
Orbital Rim

An articulated skeleton of a 1 m long theropod from Early Cretaceous strata in Inner Mongolia is clearly referrable to the Troodontidae, representing the most complete specimen known of this group of small carnivorous dinosaurs. The tail and neck of the animal were curled next to its body upon burial; the upper surface of the skeleton was badly damaged by erosion. Previously unknown details of troodont morphology include a quadratic contact with the braincase wall (forming part of a channel leading to the lateral depression), a presacral vertebral count possibly similar to that of most theropods, absence of ossified caudal tendons, presence of a rod-like clavicle, and absence of sternal ossifications. A new genus and species (Sinornithoides youngi n.gen., n.sp.) is established for the specimen on the basis of its short skull, laterally directed orbital rim of the frontal, and elongated hind limb. A reassessment of character distributions in other small theropods and primitive birds must be completed before troodontid affinities can be established with greater precision.

Sporopollen Assemblages from the Cretaceous Yimin Formation of the Hailar Basin, Inner Mongolia, China

2005 ◽  
Vol 79 (4) ◽  
pp. 459-470 ◽  
Author(s):  
WAN Chuanbiao ◽  
QIAO Xiuyun ◽  
XU Yanbin ◽  
SUN Yuewu ◽  
REN Yanguang ◽  
...  
Keyword(s):  
Inner Mongolia ◽  
Hailar Basin

scholarly journals A new hynobiid-like salamander (Amphibia, Urodela) from Inner Mongolia, China, provides a rare case study of developmental features in an Early Cretaceous fossil urodele

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2499 ◽  
Author(s):  
Jia Jia ◽  
Ke-Qin Gao
Keyword(s):  
Early Cretaceous ◽  
Inner Mongolia ◽  
Fossil Record ◽  
Rare Case ◽  
Posterior Border ◽  
Fossil Species ◽  
Developmental Patterns ◽  
Developmental Features ◽  
New Discovery

A new fossil salamander,Nuominerpeton aquilonaris(gen. et sp. nov.), is named and described based on specimens from the Lower Cretaceous Guanghua Formation of Inner Mongolia, China. The new discovery documents a far northern occurrence of Early Cretaceous salamanders in China, extending the geographic distribution for the Mesozoic fossil record of the group from the Jehol area (40th–45th parallel north) to near the 49th parallel north. The new salamander is characterized by having the orbitosphenoid semicircular in shape; coracoid plate of the scapulocoracoid greatly expanded with a convex ventral and posterior border; ossification of two centralia in carpus and tarsus; and first digit being about half the length of the second digit in both manus and pes. The new salamander appears to be closely related to hynobiids, although this inferred relationship awaits confirmation by research in progress by us on a morphological and molecular combined analysis of cryptobranchoid relationships. Comparison of adult with larval and postmetamorphic juvenile specimens provides insights into developmental patterns of cranial and postcranial skeletons in this fossil species, especially resorption of the palatine and anterior portions of the palatopterygoid in the palate and the coronoid in the mandible during metamorphosis, and postmetamorphic ossification of the mesopodium in both manus and pes. Thus, this study provides a rare case study of developmental features in a Mesozoic salamander.

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