Middle–Late Mesozoic sedimentary provenances of the Luxi and Jiaolai areas: Implications for tectonic evolution of the North China Block

Xu, Jianwei; Zhong, Li

doi:10.1016/j.jseaes.2015.07.008

Cited by 31 publications

(19 citation statements)

References 85 publications

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“…Furthermore, there are currently no unambiguous occurrences of Euhelopodidae outside of East Asia (see D 'Emic, 2012;. However, given that Euhelopodidae is here recovered as the most basal clade within Somphospondyli, and that the Mengyin Formation (which yielded the clade specifier Euhelopus) is now thought to be earliest Cretaceous (Berriasian-Valanginian) in age (Xu & Li, 2015), a close relationship between Australodocus and this clade might not be so unlikely. Furthermore, teeth from the Barremian of Spain possess a morphology that is otherwise only known in East Asian Cretaceous sauropods (Canudo et al, 2002), including Euhelopus .…”

Section: Australodocusmentioning

confidence: 84%

Taxonomic affinities of the putative titanosaurs from the Late Jurassic Tendaguru Formation of Tanzania: phylogenetic and biogeographic implications for eusauropod dinosaur evolution

Mannion

Upchurch

Schwarz

et al. 2019

Zoological Journal of the Linnean Society

168

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The Late Jurassic Tendaguru Formation of Tanzania, southeastern Africa, records a rich sauropod fauna, including the diplodocoids Dicraeosaurus and Tornieria, and the brachiosaurid titanosauriform Giraffatitan. However, the taxonomic affinities of other sympatric sauropod taxa are poorly understood. Here, we critically reassess and redescribe these problematic taxa, and present the largest phylogenetic analysis for sauropods (117 taxa scored for 542 characters) to explore their placement within Eusauropoda. Janenschia robusta has played a prominent role in discussions of titanosaur origins, with various authors referring at least some remains to Titanosauria, a clade otherwise known only from the Cretaceous. Re-description of the holotype of Janenschia, and all referable remains, supports its validity and placement as a non-neosauropod eusauropod. It forms a clade with Haestasaurus, from the earliest Cretaceous of the UK, and the Middle/Late Jurassic Chinese sauropod Bellusaurus. Phylogenetic analysis and CT scans of the internal pneumatic tissue structure of Australodocus bohetii tentatively support a non-titanosaurian somphospondylan identification, making it the only known pre-Cretaceous representative of that clade. New information on the internal pneumatic tissue structure of the dorsal vertebrae of the enigmatic Tendaguria tanzaniensis, coupled with a full re-description, results in its novel placement as a turiasaur. Tendaguria is the sister taxon of Moabosaurus, from the Early Cretaceous of North America, and is the first turiasaur recognised from Gondwana. A previously referred caudal sequence cannot be assigned to Janenschia and displays several features that indicate a close relationship with Middle-Late Jurassic East Asian mamenchisaurids. It can be diagnosed by six autapomorphies, and we erect the new taxon Wamweracaudia keranjei gen. et sp. nov. The presence of a mamenchisaurid in the Late Jurassic of southern Gondwana indicates an earlier and more widespread diversification of this clade than previously realised, prior to the geographic isolation of East Asia. Our revised phylogenetic dataset sheds light on the evolutionary history of Eusauropoda, including supporting a basal diplodocoid placement for Haplocanthosaurus, and elucidating the interrelationships of rebbachisaurids. The Tendaguru Formation shares representatives of nearly all sauropod lineages with Middle Jurassic-earliest Cretaceous global faunas, but displays a greater range of diversity than any of those faunas considered individually. Biogeographic analysis indicates that the Tendaguru sauropod fauna was assembled as a result of three main phenomena during the late Early and/or Middle Jurassic: (1) invasions from Euramerica (brachiosaurids, turiasaurs); (2) endemism in west Gondwana (dicraeosaurids, diplodocids); and (3) regional extinctions that restricted the ranges of once widespread groups (mamenchisaurids, the Janenschia lineage). Multiple dispersals across the Central Gondwanan Desert are required to explain the distributions ...

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Section: Australodocusmentioning

confidence: 84%

Taxonomic affinities of the putative titanosaurs from the Late Jurassic Tendaguru Formation of Tanzania: phylogenetic and biogeographic implications for eusauropod dinosaur evolution

Mannion

Upchurch

Schwarz

et al. 2019

Zoological Journal of the Linnean Society

168

View full text Add to dashboard Cite

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“…Bivalve stratigraphy suggested Berriasian-Barremian (Ma, 1994) whereas tetrapod faunas have been interpreted to indicate Barremian-Aptian age (Wu, Brinkman & Lu, 1994; Dong, 1992; Averianov & Skutschas, 2000; Barrett & Wang, 2007). More recently, detrital zircon and U-Pb zircon dating yielded an age between 145–136 Ma which corresponds to the Berriasian-Valanginian interval (basal Cretaceous, Xu & Li, 2015).…”

Section: Systematic Paleontologymentioning

confidence: 99%

“…The age of this formation has been contested and it was initially regarded Upper Jurassic and then subsequently interpreted as Barremian or Aptian (e.g., Dong, 1992; Wu, Brinkman & Lu, 1994; Barrett & Wang, 2007; Wilson & Upchurch, 2009). There is growing consensus that the Mengyin Formation is Lower Cretaceous and recent zircon dating has resulted in an age of 145–136 Ma which is equivalent to the Berriasian-Valanginian interval of the basal Cretaceous (Xu & Li, 2015). The Mengyin Formation has yielded two turtles, the iconic bizarre species with a pair of lateral spines on the carapace, Sinemys lens Wiman, 1930 and the enigmatic Sinochelys applanata Wiman, 1930 (Hirayama, Brinkman & Danilov, 2000; Sukhanov, 2000).…”

Section: Introductionmentioning

confidence: 99%

The sinemydid turtleOrdosemysfrom the Lower Cretaceous Mengyin Formation of Shandong, China and its implication for the age of the Luohandong Formation of the Ordos Basin

Zhou

et al. 2019

PeerJ

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Chronostratigraphic correlation of terrestrial Early Cretaceous biotas in China is highly problematic due to the lack of marine deposits, few absolute dates, and limited number of index fossils. This often leaves vertebrate faunas as one of the few potential tools for a preliminary biostratigraphy. Taxonomic identity of fragmentary fossils is, however, often uncertain and many faunas are insufficiently sampled. Turtles are one of the most common elements of Early Cretaceous biotas of Asia and their skeleton is frequently preserved more completely than that of other vertebrates- they yet receive little attention from vertebrate paleontologists. We here record the presence of the sinemydid turtle Ordosemys leios from the Lower Cretaceous Mengyin Formation of Shandong Province, China, best known for the first dinosaurs and Mesozoic turtles described from the country. Ordosemys is the third turtle reported from the Mengyin Formation along with Sinemys lens and Sinochelys applanata and the only other formation where Ordosemys is known to co-occur with Sinemys is the Luohandong Formation of the Ordos Basin (Inner Mongolia), the type and so far only horizon of Ordosemys leios. The presence of the crocodyliform Shantungosuchus may further define a fauna that is so far only known from these two formations. The stratigraphic position of the Luohandong Formation is poorly controlled and it has been placed anywhere between the Valanginian and Aptian. Published absolute dates from the Mengyin Formation and the numerous shared vertebrate and invertebrate taxa (now also including turtles) implies a Valanginian—early Hauterivian age for the Luohandong Formation—in contrast to late Hauterivian-Albian as previously proposed using the temporal distribution of Psittacosaurus. The new specimen of Ordosemys leios preserves the only known manus of this species and ecomorphological analysis of limb proportions implies that it was a less capable swimmer compared to Ordosemys liaoxiensis coming from the younger Jehol Biota.

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“…The continuous Early Cretaceous sedimentary strata in this basin provided an ideal object for studying the differential exhumation process of Jiaodong Peninsula. A lot of papers about the provenance of the Early Cretaceous sediments in the Jiaolai Basin have been published in recent years (Huo et al, ; Xie et al, ; Xu & Li, ). These published detrital zircon data consistently suggest that the Jiaobei Terrane and the Sulu orogenic belt are the major source areas for the Early Cretaceous sedimentary strata in the Jiaolai Basin.…”

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Differential exhumation of Jiaodong Peninsula during Early Cretaceous: Evidence from detrital zircon U–Pb isotopic dating

Gao

Zhong

2019

Geological Journal

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The significant Late Mesozoic thinning of lithospheric mantle in eastern China caused the formation of many basins and intensive volcanism. Crust exhumation process is a crucial part of supracrust response of lithosphere destruction. It has been studied in order to constrain the model of Late Mesozoic thinning of lithospheric mantle. The Sulu orogenic belt and the Jiaobei Terrane underwent a substantial exhumation process in Early Cretaceous, and though many studies have been carried out to investigate its exhumation history, it is still lacking understanding. Extensional terrestrial domain of the Jiaolai Basin was formed along with the Early Cretaceous exhumation of the Jiaobei Terrane and the Sulu orogenic belt. It provides an ideal research object for studying the exhumation process of Jiaodong Peninsula in Early Cretaceous because of the continuous sedimentary record in the basin. In this study, we analysed detrital zircon geochronology of three sandstone samples from Early Cretaceous sediments in north‐eastern part of the Jiaolai Basin. Detrital zircon age spectrums indicate that zircon ages consist mainly of six clusters, and they comprise Neoarchean ages, Palaeoproterozoic ages, Neoproterozoic ages, Triassic ages, Jurassic ages, and Early Cretaceous ages. The study shows that the Jiaobei Terrane and the Sulu orogenic belt served as source areas that provided detrital materials for Early Cretaceous strata in the Jiaolai Basin. Our results, along with those of previous studies, suggest that Jiaobei Terrane and the Sulu orogenic belt in Jiaodong Peninsula had discrepant exhumation history in Early Cretaceous.

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Middle–Late Mesozoic sedimentary provenances of the Luxi and Jiaolai areas: Implications for tectonic evolution of the North China Block

Cited by 31 publications

References 85 publications

Taxonomic affinities of the putative titanosaurs from the Late Jurassic Tendaguru Formation of Tanzania: phylogenetic and biogeographic implications for eusauropod dinosaur evolution

Taxonomic affinities of the putative titanosaurs from the Late Jurassic Tendaguru Formation of Tanzania: phylogenetic and biogeographic implications for eusauropod dinosaur evolution

The sinemydid turtleOrdosemysfrom the Lower Cretaceous Mengyin Formation of Shandong, China and its implication for the age of the Luohandong Formation of the Ordos Basin

Differential exhumation of Jiaodong Peninsula during Early Cretaceous: Evidence from detrital zircon U–Pb isotopic dating

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