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Mosasauroid from southern France + other papers, new and old



Ben Creisler
bcreisler@gmail.com

This is a selection of papers that have not been mentioned on the DML
and may be of interest. A few are from a few years back.

**

Two older papers that are now available in open access:


In open access:

Xinquan Liang, Shunv Wen, Dongsheng Yang, Shiquan Zhou & Shichong Wu (2009)
Dinosaur eggs and dinosaur egg-bearing deposits (Upper Cretaceous) of
Henan Province, China: Occurrences, palaeoenvironments, taphonomy and
preservation.
Progress in Natural Science 19(11): 1587-1601
doi:10.1016/j.pnsc.2009.06.012
http://www.sciencedirect.com/science/article/pii/S1002007109002949



The Upper Cretaceous dinosaur egg-bearing deposits in Henan Province,
central China are divided into three formations in ascending order:
Gaogou, Majiacun and Sigou. The Gaogou Formation belongs to alluvial
fan deposits containing the fossil dinosaur egg assemblage of
Faveoloolithus, Dendroolithus, Dictyoolithus, Paraspheroolithus and
Longiteresoolithus. The Majiacun Formation is interpreted as braided
stream to meandering stream deposits with assemblage of Ovaloolithus,
Paraspheroolithus, Placoolithus, Dendroolithus, Prismatoolithus, rare
Youngoolithus and Nanhiungoolithus. The Sigou Formation is shallow
lacustrine/palustrine to low-sinuosity river sedimentary rocks with
assemblage of Macroolithus, Elongatoolithus, Ovaloolithus and
Paraspheroolithus.

===


In open access:

Xinminosaurus


Dayong Jiang, Ryosuke Motani, Weicheng Hao, Lars Schmitz, Olivier
Rieppel, Yuanlin Sun & Zuoyu Sun (2008)
New primitive ichthyosaurian (Reptilia, Diapsida) from the Middle
Triassic of Panxian, Guizhou, southwestern China and its position in
the Triassic biotic recovery.
Progress in Natural Science 18(10): 1315–1319
doi:10.1016/j.pnsc.2008.01.039
http://www.sciencedirect.com/science/article/pii/S1002007108002530



A new primitive ichthyopterygian Xinminosaurus catactes gen. et. sp.
nov. is erected based on a complete skeleton from the Middle Triassic
Upper Member of the Guanling Formation at Panxian, Guizhou,
southwestern China. It has a suite of uniquely derived characters in
its dentition, ulna, carpals and tarsals. It is similar to primitive
ichthyopterygians in retaining elongated limb bones. The new taxon and
a diversity of marine reptiles in Panxian Fauna are the physical
markers of the Middle Triassic Biotic radiation. Detailed studies of
this fauna will supply essential knowledge on the diversity, migration
and paleobiogeographic affinity of Middle Triassic ichthyopterygians.



====

Some more recent papers:


Géraldine Garcia, Nathalie Bardet, Alexandra Houssaye, Xabier
Pereda-Suberbiola & Xavier Valentin (2015)
Mosasauroid (Squamata) discovery in the Late Cretaceous (Early
Campanian) continental deposits of Villeveyrac–L’Olivet, southern
France.
Comptes Rendus Palevol 14(6–7): 495–505
doi:10.1016/j.crpv.2015.05.002
http://www.sciencedirect.com/science/article/pii/S1631068315000664



New mosasauroid material from the Villeveyrac-L’Olivet mine (Hérault,
southern France) is described. This historical and fossiliferous
bauxite mine has yielded from the same stratigraphical level (Early
Campanian) diverse continental vertebrates, including fishes
(Lepisosteidae and Phyllodontidae), amphibians (Albanerpetondidae and
the oldest representative of the Palaeobatrachidae), turtles
(Solemydidae and Bothremydidae), squamates (Mosasauroidea),
crocodilians (Eusuchia), dinosaurs (Rhabdodontidae, Nodosauridae and
Dromaeosauridae), and a possible pterosaur. The mosasauroid specimens
represent different individuals of a single taxon, belonging to a
large plesiopedal tethysaurine-like form (about 3 meters long). This
discovery adds to previous reports of plesiomorphic freshwater
mosasauroids in the Late Cretaceous dinosaur-bearing sites of the
European archipelago.


*****


Marta S. Fernández &  Marianella Talevi (2015)
An halisaurine (Squamata: Mosasauridae) from the Late Cretaceous of
Patagonia, with a preserved tympanic disc: Insights into the mosasaur
middle ear.
Comptes Rendus Palevol 14 (6–7): 483–493
doi:10.1016/j.crpv.2015.05.005
http://www.sciencedirect.com/science/article/pii/S163106831500072X

Halisaurinae is a subfamily of enigmatic, small- to medium-sized
mosasauroids, which retain a mosaic of primitive and derived features.
The first record of a South American Halisaurus with precise
stratigraphic information includes a quadrate carrying a tympanic disc
together with twelve vertebrae, collected in the Late Maastrichtian of
Jagüel Formation in northern Patagonia (Argentina). The preservation
of a tympanic disc allows exploring and discussing the mechanisms of
sound transmission in these mosasauroids. The location of the tympanic
disc resembles that one formed by the extracolumella of aquatic
turtles and at least one extant lizard. Based on morphological
comparison of the middle ear we discuss previous hypotheses on the
modification of the tympanic middle ear system of mosasauroids for
underwater hearing, in a manner similar to that observed in aquatic
turtles.

***

Philippe Taquet (2015)
>From the Aoulef crocodile to Sarcosuchus imperator.
Comptes Rendus Palevol 14 (6–7): 507–512
doi:10.1016/j.crpv.2015.04.002
http://www.sciencedirect.com/science/article/pii/S1631068315000597

This paper is a tribute to my colleague and friend France de
Lapparent; it recounts briefly all the stages of a nice
paleontological discovery, which began in Algeria in 1947, when the
geologist Albert-Felix de Lapparent collected fragments of a crocodile
of massive size in Lower Cretaceous sediments. The study of these
fragments by France de Lapparent, and the subsequent discovery in
Niger of a skull and elements of the skeleton of a crocodile of the
same species by the author of these lines, led us together to describe
and to name this monster Sarcosuchus imperator, which is today famous
under the nickname Supercroc.

====


DENG Sheng-hui, WANG Si-en, YANG Zhen-yu, LU Yuan-zheng, LI Xin, HU
Qing-yue, AN Chun-zhi, XI Dang-peng & WAN Xiao-qiao (2015)
Comprehensive Study of the Middle-Upper Jurassic Strata in the Junggar
Basin, Xinjiang.  [in Chinese]
Acta Geoscientia Sinica 36(5): 559-574
http://www.cagsbulletin.com/dqxbcn/ch/reader/view_abstract.aspx?file_no=20150506&flag=1

[To download a free pdf, click on the the second line under the
centered Chinese article title in black and white that is  under the
full color journal logo at the top]


This paper presents the results of a comprehensive study of
lithostratigraphy, biostratigraphy, chronostratigraphy,
cyclostratigraphy and magnetostratigraphy of the Middle–Upper Jurassic
strata in the Junggar Basin, Xinjiang. The main findings are as
follows: the Toutunhe Formation consists of the uppermost part of the
Bathonian, Callovian and the Lower–Middle Oxfordian; the ages of the
base and top of this formation are 166.2 Ma and 160.8 Ma respectively,
and its sedimentary interval is about 5.4 Ma. The age of the top of
the Qigu Formation is estimated at around 155.3 Ma, and the
sedimentary interval of this formation is about 5.5 Ma, suggesting the
upper Oxfordian and middle Kimmeridgian. The top horizon of the Qigu
Formation is almost coeval to that of the Tiaojishan Formation in
northern Hebei and western Liaoning provinces. This means that the
Qigu Formation is lower than the Tuchengzi Formation in northern Hebei
and western Liaoning. The Kalaza Formation is assigned to the late
Kimmeridgian, and the overlying Tugulu Group is early Cretaceous in
age, which indicates an obvious unconformity with the existence of a
stratigraphic gap from the Tithonian to the possible lowermost part of
the Cretaceous, and the missing strata are equal to over 7 Ma between
the Jurassic and the Cretaceous in the study area. The strata through
the Jurassic/Cretaceous boundary are absent.

==



TONG Jin-nan (2015)
Division and Correlation of Marine Lower-Middle Triassic Strata in
East China. [in Chinese]
Acta Geoscientia Sinica 36(5): 546-558
http://www.cagsbulletin.com/dqxbcn/ch/reader/view_abstract.aspx?file_no=20150505&flag=1

[To download a free pdf, click on the the second line under the
centered Chinese article title in black and white that is under the
full color journal logo at the top]

Marine Triassic sedimentation of east China occurred only in the
Early-Middle Triassic time. The marine Lower-Middle Triassic
successions not only are the depositional products in the sedimentary
basins controlled by the regional tectonism but also represent the
tectonic pattern and process of the Indosinian movement in the region.
The Triassic strata of east China can be divided into two
stratigraphic regions and six stratigraphic subregions. The
stratigraphic sequences within each stratigraphic region can be
unified into a uniform lithostratigraphic system according to the time
attribute and lithofacies paleogeographic affiliation of the
stratigraphic units, except for some specific geological bodies of
quite distinctive lithofacies that can be separately named. The
lithostratigraphic sequences can be well correlated on the basis of
the integrated study of some characteristic paleontological and
environmental events. The spatial and temporal variation of
stratigraphic sequence indicates that the first episode or prologue of
the Indosinian movement should have taken place in the late Early
Triassic period, which resulted in the formation of a series of
secondary marginal seas in the northern part of the Yangtze block due
to its suturing with the North China block after that time, and the
suture zone was finally closed in the late Middle Triassic. In the
meantime, the southern margin of the Yangtze block became steepened to
form a platform-slope-basin sedimentary system during the late Early
Triassic with the compression of the Cathaysia block, and the deep
basin was finally closed at the end of the Early Triassic, whereas
united clastic sedimentary basins across the blocks occurred in the
Middle Triassic.