<i>Megaloolithus</i> Dinosaur Nest from the Lameta Formation of Salbardi Area, Districts Amravati, Maharashtra and Betul, Madhya Pradesh

Srivastava, Ashok; Mankar, Rupesh S.

doi:10.1007/s12594-015-0237-0

Cited by 12 publications

(7 citation statements)

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“…Mankar and Srivastava (2015) proposed a new basin of deposition for the Lameta sediments in central India, viz., Salbardi-Belkhar inland basin and identified three different lithofacies reveling fluvial-lacustrine set-up for the same. Dinosaur remains and egg nests have been reported in recent studies (Srivastava and Mankar, 2015;Aglawe and Lakra, 2018;Fernández and Khosla, 2015;Khosla et al, 2015). Sonkusare et al (2016) reported plant remains and diverse spores and pollens within Lameta sediments.…”

Section: Marine and Continental Deposits In Bagh Group And Lameta Formentioning

confidence: 88%

Marine and Fluvial Sedimentation Including Erosion and Sediment Flux in Peninsular Indian Phanerozoic Basins

Banerjee¹,

Ghosh²,

Nagendra³

et al. 2020

PINSA

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This review presents a brief appraisal of the present understanding regarding marine and fluvial sedimentation in peninsular India in the background of global tectono-thermal events and relative sea level changes during the Phanerozoic. Sedimentary basins hosting the Phanerozoic deposits of peninsular India can be broadly categorized into two viz. Gondwana related half grabensand Meso-Cenozoic passive margins. Recent investigations document marine incursions in the former category of basins based on careful analysis of trace fossil assemblage and tide-and wave-originated sedimentary structures. The study of continental carbonates in the Upper Gondwana reveals widespread microbially mediated carbonate formation in freshwater systems, while the mud-dominated fluvial deposits in these basins show unique characteristics of the channel to overbank sediment transfer, related to a balance between sediment flux and erosion.The application of sequence stratigraphy provides a high-resolution analysis of passive continental margin sedimentary succession in Kutch, Cauvery and Jaisalmer basins. The origin of authigenic minerals has been integrated with the sequence stratigraphic framework in several Mesozoic and Cenozoic basins. A thorough biostratigraphic investigation reveals different order of sea-level cycles in the sedimentary deposits of Cauvery and Kutch basins and hyperthermal events in the Cenozoic of Kutch. Distinct ichnological assemblages characterize the transgressive and regressive deposits in Kutch and Jaisalmer basins. Quaternary terrestrial sedimentary records provide a high-resolution palaeoclimatic reconstruction.

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Section: Marine and Continental Deposits In Bagh Group And Lameta Formentioning

confidence: 88%

Marine and Fluvial Sedimentation Including Erosion and Sediment Flux in Peninsular Indian Phanerozoic Basins

Banerjee¹,

Ghosh²,

Nagendra³

et al. 2020

PINSA

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“…Brookfield & Sahni (1987) later discarded this view and concluded that the Lameta sediments were deposited in an alluvial plain environment under semi-arid conditions, which has since been corroborated by Tandon et al (1990), Mohabey, Udhoji & Verma (1993), Mohabey & Udhoji (2000), and Mohabey & Samant (2003), among others. The rich terrestrial flora and fauna recovered from the Lameta Formation, including rich skeletal remains of sauropod and theropod dinosaurs as well as their eggs, nests, and coprolites, similarly indicate a semi-arid climate and fluvial-lacustrine environments (Mohabey, 1987;Mohabey, 1996;Srivastava & Mankar, 2015;Tandon et al, 1995). A Maastrichtian age has been suggested for the Lameta Formation of Pisdura and Dongargaon on the basis of dinosaur skeletal remains, nests, eggs, coprolites, ostracods, charophytes, diatoms, and plants (Mohabey, Udhoji & Verma, 1993;Ambwani et al, 2003;.…”

Section: Geological Settingsmentioning

confidence: 99%

A revision of the pelomedusoid turtle Jainemys pisdurensis from the Late Cretaceous (Maastrichtian) Lameta Formation of India

Joyce

Bandyopadhyay

2020

PeerJ

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Background Jainemys pisdurensis comb. nov. is an extinct pleurodiran turtle from the Late Cretaceous (Maastrichtian) of India, previously referred to Carteremys and Shweboemys. The holotype, an eroded skull, had been collected near the village of Pisdura, south of Nagpur, in Maharashtra State, while all referred shell material originates from coeval sediments exposed at the nearby village of Dongargaon. Initial estimates believed this turtle to either be an early representative of Podocnemididae or a basal representative of Pelomedusoides. Methods We here figure and describe all specimens that had previously been referred to Jainemys pisdurensis comb. nov. We furthermore re-evaluate the validity of this fossil turtle and explore its phylogenetic relationships within Pleurodira. Results The holotype of Jainemys pisdurensis comb. nov. displays a morphology that differs substantially from that originally reported. Most notably, the palatines only have a minor contribution to the broad triturating surfaces but have a broad midline contact with each other, the pterygoids only have a midline contact of intermediate length and do not contact the opisthotics posteriorly, the basisphenoid is broad and short, and the opisthotics do not contribute to the flooring of the cavum acustico-jugulare. The referred shell material also displays a morphology different from that reported originally, in particular in that vertebral I does not contribute to the anterior margin of the carapace while the nuchal does. Phylogenetic analysis places the cranial material within the bothremydid clade Kurmademydini, while the shell material is placed in an unresolved polytomy at the base of this clade. Jainemys pisdurensis is confirmed to be a valid species of pleurodiran turtle, but the high diversity of coeval kurmademydines in India demands removal of the postcranial remains from this taxon. The realization that all valid species of Late Cretaceous (Maastrichtian) turtles from India form a clade supports the hypothesis that India was physically separated from the rest of Gondwana at this time.

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“…These authors suggested that as India, Madagascar and South America were well separated from each other by 100-90 Ma, the wide distribution of similar taxa in these landmasses indicates their origin and dispersal prior to the separation of these landmasses or that there were some yet to be identified land connections between these southern terranes. Srivastava and Mankar (2015) documented the presence of a single nest of Megaloolithus (sauropod dinosaur) in the Lameta Formation from a geographic site located at the boundary of Amaravati District in Maharashtra and Betul District in Madhya Pradesh, quite far away from the traditionally known nesting sites of Jabalpur, Bagh, Balasinor, and Dongargaon. In a major taxonomic reassessment of the purported large lizard nest found in association with sauropod nests in the Lameta Ghat section of the Lameta Formation at Jabalpur, reassigned it to crocodiles.…”

Section: Late Drift Phasementioning

confidence: 99%

An Overview of Recent Advances in the Mesozoic–Palaeogene Vertebrate Paleontology in the Context of India’s Northward Drift and Collision with Asia

Prasad

Bajpai²,

Sahni³

2016

Proceedings of the Indian National Science Academy

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This review article summarizes the recent work done in India on fossil vertebrates from the Mesozoic-early Paleogene interval, with focus on the past five years. Advances made during this period highlight the importance of India's vertebrate fossil record in our understanding of the origin and evolutionary history of several vertebrate groups and the dynamics of intercontinental faunal dispersal and vicariance, especially in the context of India's former position in the Gondwanaland and its subsequent separation from the different Gondwana landmasses as it moved northward to finally collide with Asia in the early Paleogene. These studies have led to a better understanding of the mode of evolution of tetrapods on the drifting Indian plate and provide independent constraints to test the traditional models favouring India's physical isolation from all other landmasses, especially during the late Cretaceous phase of its northward drift. Recent data points to faunal interchanges between India, Africa and Europe at or near the K-Pg boundary and also suggests that the Indian landmass was the centre of origin/early evolution for several orders of modern mammals, including cetaceans (whales), perissodactyls (horses, tapirs) and primates.

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Megaloolithus Dinosaur Nest from the Lameta Formation of Salbardi Area, Districts Amravati, Maharashtra and Betul, Madhya Pradesh

Cited by 12 publications

References 4 publications

Marine and Fluvial Sedimentation Including Erosion and Sediment Flux in Peninsular Indian Phanerozoic Basins

Marine and Fluvial Sedimentation Including Erosion and Sediment Flux in Peninsular Indian Phanerozoic Basins

A revision of the pelomedusoid turtle Jainemys pisdurensis from the Late Cretaceous (Maastrichtian) Lameta Formation of India

An Overview of Recent Advances in the Mesozoic–Palaeogene Vertebrate Paleontology in the Context of India’s Northward Drift and Collision with Asia

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