The paper describes dicot and monocot leaves along with some wood remains from new Deccan Intertrappean fossiliferous localities situated in the Seoni and Mandla districts of Madhya Pradesh. The leaf remains belong to Dicotyloplryllum Saporta, Phoenicites Brongniart, Amesoneuron Goeppert and the woods are represented by Hydnocarpoxylon Bande & Khatri, Polyalthioxylon Bande and Palmoxylon Schenk. Occurrence of mucilage canal in a fossil wood of palm has been reported for the first time.
The paper describes for the first time some Palaeogene plant fossils from Manipur, Northeast India. The fossils were recovered from the late Eocene and early Oligocene sediments in the vicinity of the boundary of the Disang and Barail Groups of rocks of the Imphal Valley and its adjoining areas. All the fossils belong to Angiosperms and represent monocots and dicots. The assemblage consists of mainly dicotyledonous leaves, two types of palm leaves, a fruiting shoot, a leguminous fruit and a bark. The fossil leaves show a rich morphological diversity and indicate the existence of warm and humid tropical vegetation at the time of deposition.
A fossil wood of Lauraceae resembling those of the modern genera Cinnamomum Spreng. and Litsea Lam. is described from the Vagadkhol Formation of Bharuch District, Gujarat considered to be Palaeocene-Early Eocene in age. This is the first record of a fossil wood of this family from western India. In view of the meagre fossil records known from the Palaeogene sediments of western India, the present finding becomes important as it enriches the palaeofloristics. Its presence, along with the already described fossils indicates warm and humid conditions in the region during the depositional period in contrast to the present day dry climate.
A fossil wood showing resemblance with the modern genus Gluta L. is described from the Rajpardi Lignite Mine of Bharuch District, Gujarat. The age of this mine has been considered as Early Eocene. The modern comparable species of the fossil, Gluta travancorica Bedd., is an evergreen element and presently growing in wet evergreen forests of Western Ghats, India. An account of the present distribution of its modern analogue, along with previously described fossils from the same locality indicates the existence of humid conditions and evergreen forest in and around the fossil locality during the Eocene as compared to arid to semi–arid climate in the area today.
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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