Leaves of Taxus with cuticle micromorphology from the Early Cretaceous of eastern Inner Mongolia, Northeast China

2021 ◽  
pp. 104588
Author(s):  
Chong Dong ◽  
Gongle Shi ◽  
Fabiany Herrera ◽  
Yongdong Wang ◽  
Zixi Wang ◽  
...  
Keyword(s):  
Early Cretaceous ◽  
Inner Mongolia ◽  
Northeast China ◽  
Eastern Inner Mongolia

Termite coprolites (Blattodea: Isoptera) from the Early Cretaceous of eastern Inner Mongolia, Northeast China

2022 ◽  
Vol 5 (1) ◽  
Author(s):  
CHONG DONG ◽  
GONG-LE SHI ◽  
ZI-XI WANG ◽  
DI-YING HUANG
Keyword(s):  
Early Cretaceous ◽  
Cross Sections ◽  
Inner Mongolia ◽  
Northeast China ◽  
Feeding Habits ◽  
Feeding Preference ◽  
Elliptical Cross ◽  
Faecal Pellets ◽  
Wood Debris ◽  
Eastern Inner Mongolia

Well-preserved coprolites (fossil faecal pellets) were found from lignite seams of the Lower Cretaceous Huolinhe Formation at the Huolinhe Basin in eastern Inner Mongolia, Northeast China. These coprolites provide a combination of following features: oval to cylindrical shaped with six longitudinal ridges, hexagonal to elliptical cross-sections, and one blunt end and the other pointed end. According to these distinct features and their size range, the producers of these coprolites are attributed to termites. Termites were estimated to have originated in the earliest Cretaceous with an evolutionary radiation in the Early Cretaceous. The presence of wood debris in the coprolites indicate that the Early Cretaceous termites from the Huolinhe Basin had wood-feeding habits; and anatomical features displaying on the wood debris further suggest their feeding preference was coniferous wood. Besides, the results of a k-means clustering analysis performed for these coprolites indicate that three clusters with different proportion were present, suggesting the division of labor in termites’ sociality existed as early as the Early Cretaceous.

scholarly journals Male spike strobiles withGnetumaffinity from the Early Cretaceous in western Liaoning, Northeast China

2009 ◽  
Vol 47 (2) ◽  
pp. 93-102 ◽  
Author(s):  
Shuang-Xing GUO ◽  
Jin-Geng SHA ◽  
Li-Zeng BIAN ◽  
Yin-Long QIU
Keyword(s):  
Early Cretaceous ◽  
Northeast China ◽  
Western Liaoning

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.

Genesis of the Wurinitu W-Mo deposit, Inner Mongolia, northeast China: Constraints from geology, fluid inclusions and isotope systematics

2018 ◽  
Vol 94 ◽  
pp. 367-382 ◽  
Author(s):  
Yin-Hong Wang ◽  
Fang-Fang Zhang ◽  
Jia-Jun Liu ◽  
Chun-Ji Xue ◽  
Zhao-Chong Zhang
Keyword(s):  
Fluid Inclusions ◽  
Inner Mongolia ◽  
Northeast China ◽  
Isotope Systematics

Warm-induced aridification in eastern Inner Mongolia evidenced by tree rings

2017 ◽  
Vol 42 ◽  
pp. 73-79 ◽  
Author(s):  
Bo Sun ◽  
Yu Liu ◽  
Ying Lei ◽  
Lingxia Guo
Keyword(s):  
Tree Rings ◽  
Inner Mongolia ◽  
Eastern Inner Mongolia
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