First fossil foliage record in the red beds from the Upper Jurassic in the Sichuan Basin, southern China

2021 ◽  
Author(s):  
Li Zhang ◽  
Yongdong Wang ◽  
Yiming Cui ◽  
Ning Tian ◽  
Xiaoping Xie ◽  
...  
Keyword(s):  
Sichuan Basin ◽  
Southern China ◽  
Upper Jurassic ◽  
Red Beds ◽  
The Sichuan Basin

Review of the Gekko (Japonigekko) subpalmatus complex (Squamata, Sauria, Gekkonidae), with description of a new species from China

Zootaxa ◽  
2021 ◽  
Vol 4951 (2) ◽  
pp. 236-258
Author(s):  
ZHI-TONG LYU ◽  
CHAO-YU LIN ◽  
JIN-LONG REN ◽  
KE JIANG ◽  
YIN-PENG ZHANG ◽  
...  
Keyword(s):  
Sichuan Basin ◽  
Southern China ◽  
Eastern China ◽  
Morphological Characteristics ◽  
Wide Distribution ◽  
Valid Species ◽  
Morphological Examination ◽  
Southeastern China ◽  
The Sichuan Basin ◽  
A New Species

The gecko species Gekko (Japonigekko) subpalmatus was previously recorded with a relatively wide distribution from eastern, southern, and southeastern China. However, the populations in southern China are currently recognized as another valid species G. (J.) melli. In this study, we conduct a detailed morphological examination and phylogenetic analysis of the populations currently treated as G. (J.) subpalmatus or G. (J.) melli, which are collectively designated as the G. (J.) subpalmatus complex. Our results reveal that the G. (J.) subpalmatus complex comprises three evolutionarily independent taxa. The populations from Zhejiang, eastern China are G. (J.) subpalmatus, those from southern China are G. (J.) melli, while those from the Sichuan Basin, southwestern China represent a cryptic species, Gekko (Japonigekko) cib sp. nov.. Gekko (Japonigekko) cib sp. nov. can be distinguished from all congeners, by its divergence from other complex members in the CYTB and 16S genes, and a combination of morphological characteristics, especially in hemipenial morphology. Historic records of G. (J.) subpalmatus complex are also reviewed. 

A new primitive eucryptodiran turtle from the Upper Jurassic Phu Kradung Formation of the Khorat Plateau, NE Thailand

2014 ◽  
Vol 152 (1) ◽  
pp. 166-175 ◽  
Author(s):  
HAIYAN TONG ◽  
WILAILUCK NAKSRI ◽  
ERIC BUFFETAUT ◽  
VARAVUDH SUTEETHORN ◽  
SURAVECH SUTEETHORN ◽  
...  
Keyword(s):  
New Species ◽  
Sichuan Basin ◽  
Late Jurassic ◽  
New Genus ◽  
Upper Jurassic ◽  
New Taxon ◽  
Full Width ◽  
The Sichuan Basin

AbstractA new genus and new species of primitive eucryptodiran turtle, Phunoichelys thirakhupti gen. et sp. nov., is described on the basis of shell remains from the lower part of the Phu Kradung Formation, at Phu Noi locality, Kalasin Province, NE Thailand. It is assigned to Xinjiangchelyidae on the basis of the marginals covering the lateral end of the costals and the anal scutes invading the hypoplastra. The new taxon is further characterized by a low and rounded carapace without a cervical notch; the whole carapace and plastron covered with a clear ornamentation consisting of tiny irregular vermiculated furrows; a complete neural series that reaches the suprapygal; a very wide and short cervical scute; relatively wide vertebral scutes; and a long first thoracic rib that extends along the full width of the first costal. The sutured plastron/carapace connection and the marginals covering the lateral end of the second to seventh costals suggest that the turtles from Phu Noi may be related to some primitive xinjiangchelyids from the Sichuan Basin. The discovery of a xinjiangchelyid turtle in the lower part of the Phu Kradung Formation supports a Late Jurassic age for that part of the formation.

A revision of Sinaspideretes wimani Young & Chow, 1953 (Testudines: Cryptodira: Trionychoidae) from the Jurassic of the Sichuan Basin, China

2013 ◽  
Vol 151 (4) ◽  
pp. 600-610 ◽  
Author(s):  
HAIYAN TONG ◽  
LU LI ◽  
HUI OUYANG
Keyword(s):  
Molecular Phylogeny ◽  
Fossil Record ◽  
Sichuan Basin ◽  
Red Beds ◽  
The Sichuan Basin ◽  
Single Shell

AbstractSinaspideretes wimani Young & Chow, 1953 was based on a single shell from the Jurassic red beds of the Sichuan Basin. Originally referred to Trionychidae but later tentatively assigned to Carettochelyidae, it was long thought to be the oldest representative of those families. The re-examination of the carapace and further preparation of the plastron of the holotype of S. wimani revealed a number of important characters which clearly exclude this taxon from both Trionychidae and Carettochelyidae, but unite it with the primitive trionychoid Yehguia tatsuensis (Ye, 1963). S. wimani is therefore considered as the basalmost member of Trionychoidae. Our study adds to the evidence from the fossil record for the antiquity of Trionychoidae, thus is in agreement with the early split of Trionychia (Trionychidae and Carettochelyidae) among the crown Testudines suggested by the molecular phylogeny of turtles.

Middle Jurassic turtles from the Sichuan Basin, China: a review

2011 ◽  
Vol 149 (4) ◽  
pp. 675-695 ◽  
Author(s):  
HAIYAN TONG ◽  
IGOR DANILOV ◽  
YONG YE ◽  
HUI OUYANG ◽  
GUANGZHAO PENG
Keyword(s):  
Middle Jurassic ◽  
Sichuan Basin ◽  
Late Jurassic ◽  
Upper Jurassic ◽  
The Other ◽  
Dominant Group ◽  
Genus Level ◽  
The Family ◽  
The Sichuan Basin ◽  
The One

AbstractThe turtle fauna of the Middle Jurassic Xiashaximiao Formation in the Sichuan Basin and the type series ofChengyuchelys baenoidesYoung & Chow, 1953 are revised. By the absence of a mesoplastron and other shell characters, both the holotype and paratype ofChengyuchelys baenoidesbelong to the family Xinjiangchelyidae and come probably from the Upper Jurassic Shangshaximiao Formation. The Middle Jurassic turtle assemblage of the Sichuan Basin is composed of two entities: the Bashuchelyidae fam. nov. (Bashuchelysgen. nov.,Chuannanchelysgen. nov.) andProtoxinjiangchelysgen. nov. on the one hand, andSichuanchelyson the other hand, with the former as the dominant group. Bashuchelyids and xinjiangchelyids are closely related to one another, whileSichuanchelysis more primitive and has no shared apomorphic features with bashuchelyids. The whole assemblage appears to be endemic to the Sichuan Basin at genus level and distinct from the Late Jurassic turtle fauna of the same basin in its relict nature and absence of the Polycryptodira.

Activity of Silica-Rich Hydrothermal Fluid and Its Impact on Deep Dolomite Reservoirs in the Sichuan Basin, Southern China

2017 ◽  
Vol 91 (6) ◽  
pp. 2214-2229 ◽  
Author(s):  
Dongya ZHU ◽  
Dianwei ZHANG ◽  
Quanyou LIU ◽  
Zhijun JIN ◽  
Zhiliang HE
Keyword(s):  
Sichuan Basin ◽  
Hydrothermal Fluid ◽  
Southern China ◽  
The Sichuan Basin

Simulations of Stratus Clouds over Eastern China in CAM5: Sensitivity to Horizontal Resolution

2014 ◽  
Vol 27 (18) ◽  
pp. 7033-7052 ◽  
Author(s):  
Yi Zhang ◽  
Haoming Chen ◽  
Rucong Yu
Keyword(s):  
High Resolution ◽  
Radiative Forcing ◽  
Sichuan Basin ◽  
Southern China ◽  
Eastern China ◽  
Dynamic Component ◽  
Ambient Environment ◽  
Stratus Clouds ◽  
The Sichuan Basin ◽  
The Impact

Abstract This paper evaluates the simulations of stratus clouds over eastern China (EC) in the Community Atmosphere Model, version 5 (CAM5), with an emphasis on the impact of changing horizontal resolutions on the performance. CAM5 in all experiments generally satisfactorily simulates the cloud radiative features over EC, including the spatial distributions of the continental shortwave cloud radiative forcing (SWCF) and stratus regimes, the responses of SWCF to the dynamic and thermodynamic ambient environment, and several relations in the environmental fields that are favorable to the stratus formation. Meanwhile, all experiments suffer from similar biases. Models tend to underestimate the stratus amount because of a corresponding underestimate of stratus occurrence frequency, while the stratus amount when present (AWP) is generally higher than that in the observation. Models also simulate similar errors in the environmental fields. The differences between low- and high-resolution experiments are distinct. An increase of resolution enhances the SWCF in southern China, but the skill deteriorates in the Sichuan basin. Correspondingly, the stratus amount increases in southern China from low- to high-resolution experiments, mainly because of more stratus occurrences, which are found to be related to the better represented environmental fields in the high-resolution experiments, especially the dynamic component. Several relations in the ambient environment are also slightly improved in the high-resolution experiments. Meanwhile, the reason for the decrease of stratus AWP within the Sichuan basin, which is mainly responsible for the decreased stratus amounts and weaker SWCF from low- to high-resolution experiments, is also discussed.

Sign in / Sign up

Export Citation Format

Share Document