Fossil woods of Terminalia and Lagerstroemia from the late cenozoic beds of Mahuadanr, Palamu District, Bihar

Srivastava, G.P.; Bande, M.B.

doi:10.54991/jop.1990.1699

Cited by 8 publications

(8 citation statements)

References 8 publications

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“…The outcrop exposes mostly shale (arenaceous and clayey) and sandstone, while the studied fossil leaves are preserved as impressions and compressions in greyish blue mudstones and light-brown diatomite. Earlier workers (Prakash et al, 1987;Srivastava and Bande, 1992;Hazra et al, 2020a) have considered the age of the Rajdanda Formation to be 'late Tertiary' (Pliocene), but till date no absolute (radiometric) dating has been carried out.…”

Section: Methodsmentioning

confidence: 99%

New discovery of rare insect damage in the Pliocene of India reinforces the biogeographic history of Eurasian ecosystems

Hazra

Adroit

Hazra

et al. 2022

Review of Palaeobotany and Palynology

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Section: Methodsmentioning

confidence: 99%

New discovery of rare insect damage in the Pliocene of India reinforces the biogeographic history of Eurasian ecosystems

Hazra

Adroit

Hazra

et al. 2022

Review of Palaeobotany and Palynology

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“…However, in view of its close lithological and plant fossil similarities with the Sandhan Formation of Kachchh, its age is considered as Plio-Pleistocene till more evidences are obtained (Guleria & Shukla, 2011). Although the two genera being described herein are already known from various Palaeogene and Neogene sediments of India (Prakash, 1966;Prasad, 1989;Guleria, 1990Guleria, , 1991Srivastava & Bande, 1992;Prakash et al, 1994;Tiwari & Mehrotra, 2000), this is their first record from this formation.…”

Section: Introductionmentioning

confidence: 80%

Two dicotyledonous woods from the late Neogene sediments of Jaisalmer, Rajasthan

Shukla¹,

Mehrotra²,

Guleria³

2013

JPS

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Two fossil woods collected from the late Neogene sediments of Rajasthan show best resemblance to the modern genera Terminalia L. and Lagerstroemia L. of the families Combretaceae and Lythraceae, respectively. The fossils belong to the Shumar Formation of Jaisalmer Basin considered as Plio–Pleistocene in age. The habitats of the modern counterparts of the fossils indicate the prevalence of semi–evergreen to deciduous forests with warm and humid climatic conditions in the Jaisalmer District at the time of deposition of the sediments in contrast to the present day xeric vegetation with desertic conditions in the area.

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“…The outcrop yields abundant angiosperm leaf remains, carbonised wood fragments, and fruit remains including winged fruits and flowers. The earlier studies (Prakash et al, 1987; Srivastava & Bande, 1992; Singh & Prasad, 2007, 2008, 2009a, 2009b, 2009c, 2010) have considered the age of the studied sedimentary sections to be “late Tertiary” (Pliocene), but no absolute (radiometric) dating has been carried out to date. Additionally, the district resource map published by the Geological Survey of India (GSI) of Palamau, Jharkhand, also assigns a Pliocene age to the sedimentary beds.…”

Section: Methodsmentioning

confidence: 99%

First fossil evidence of samaras ofVentilagoGaertn. (Rhamnaceae) from India and its implications

Hazra

Kundu

Bera

et al. 2023

J of Sytematics Evolution

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The Ventilago Gaertn. (Rhamnaceae) is widely distributed in pantropical areas of Africa, Asia, and Australia. However, fossil records of this taxon are sparse, which limits understanding of the evolution and biogeographic history of the genus. In the present study, we report and describe two new fossil species of Ventilago, V. siwalika sp. nov. from the Miocene sediments of Himachal Pradesh, western Himalaya, and V. pliocenica sp. nov. from the Pliocene sediments of Jharkhand, eastern India based on single‐winged samaras. Ventilago pliocenica is characterized by a prominent midvein, obtuse to sub‐round apex with mucronate tip, longitudinal secondary veins extending the full length of the fruit, and reticulate nature of higher‐order veins, the presence of equatorial rim, the hypanthium, and short pedicel. On the other hand, V. siwalika is characterized by a prominent midvein, obtuse to sub‐round apex with mucronate tip, longitudinal secondary veins extending the full length of the fruit, and reticulate nature of higher‐order veins. Our discovery represents the first unambiguous fossil record of single‐winged samara of Ventilago from India and provides valuable insights into the evolution of this genus. In this paper, we also review its biogeographic history and add new information to understand its hypothetical migration route. Present and earlier records of Ventilago also suggest that this genus was a common forest element during Neogene (Miocene time) in Asia.

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Fossil woods of Terminalia and Lagerstroemia from the late cenozoic beds of Mahuadanr, Palamu District, Bihar

Cited by 8 publications

References 8 publications

New discovery of rare insect damage in the Pliocene of India reinforces the biogeographic history of Eurasian ecosystems

New discovery of rare insect damage in the Pliocene of India reinforces the biogeographic history of Eurasian ecosystems

Two dicotyledonous woods from the late Neogene sediments of Jaisalmer, Rajasthan

First fossil evidence of samaras ofVentilagoGaertn. (Rhamnaceae) from India and its implications

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