An unusual pycnoxylic wood from a new Upper Gondwana locality in Tamil Nadu, India

Jeyasingh, D. E. P.; Kumarasamy, D.

doi:10.1016/0034-6667(94)00114-y

Cited by 6 publications

(7 citation statements)

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“…AKM/81) that comes from a new locality that was considered to be part of the Sriperumbudur Formation near the town of Arkonam, while showing certain features of Araucarioxylon, such as the characteristic alternate pitting on the tracheid walls, is clearly different from other species of this genus reported from the Indian peninsula. Though the specimen was assigned to Araucarioxylon (Jeyasingh & Kumarasamy, 1995), the authors have drawn special notice to the unusual features of this wood, which seems to agree more to a wood reported from the Cretaceous of Antarctica. Moreover, this wood shows features that seem to indicate the origin of woods with vessels.…”

Section: Introductionsupporting

confidence: 71%

“…The fossil wood Araucarioxylon mosurense (Jeyasingh & Kumarasamy, 1995) shows certain features that are very peculiar for conifer woods. These peculiar features include the following: (i) swollen ends of some tracheids with multiseriate pitting (Pl.…”

Section: (Iii) Evolutionary Considerationsmentioning

confidence: 99%

“…These peculiar features include the following: (i) swollen ends of some tracheids with multiseriate pitting (Pl. 1•4); (ii) tangential pitting in at least some parts of the tracheids (Jeyasingh & Kumarasamy, 1995;Pl. II, fig.…”

Section: (Iii) Evolutionary Considerationsmentioning

confidence: 99%

“…II, fig. 10) and (iii) multiplication of ray cells due to radial divisions in the central part of the rays, which become multiseriate (Jeyasingh & Kumarasamy, 1995;Pl. II, figs 9 & 11).…”

Section: (Iii) Evolutionary Considerationsmentioning

confidence: 99%

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What do the petrified woods of the Sriperumbudur Formation indicate?

Jeyasingh¹

2008

JPS

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Of the several outcrops of Upper Gondwana exposures along the East Coast of the Indian Peninsula, the Sriperumbudur Formation near Chennai, Tamil Nadu has yielded many well-preserved petrified woods. Extensive anatomical studies were carried out on these woods during the past decade at Tambaram, Chennai. A study of these woods helped to understand the variation in the wood structure. Based on these woods, the diversity of the arborescent palaeoflora was traced in the region during the Late Jurassic-Early Cretaceous times. It has also been possible to interpret the climatic conditions that prevailed during the time of deposition through the study of the wood anatomy. The paper discusses some evolutionary trends indicated by the wood studies. A suggestion is made for the taxonomic revision of one of the woods.

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Section: Introductionsupporting

confidence: 71%

Section: (Iii) Evolutionary Considerationsmentioning

confidence: 99%

Section: (Iii) Evolutionary Considerationsmentioning

confidence: 99%

“…II, fig. 10) and (iii) multiplication of ray cells due to radial divisions in the central part of the rays, which become multiseriate (Jeyasingh & Kumarasamy, 1995;Pl. II, figs 9 & 11).…”

Section: (Iii) Evolutionary Considerationsmentioning

confidence: 99%

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What do the petrified woods of the Sriperumbudur Formation indicate?

Jeyasingh¹

2008

JPS

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“…For the latter the wood record is very limited (Fliche, 1900, 1905). For the former, however, despite a quite good wood record (Sahni, 1931; Bhardwaj, 1953; Jeyasingh & Kumarasamy, 1995), nothing clearly ascribable to Metapodocarpoxylon has ever been mentioned. In addition, special attention was paid to the southern Africa Early Cretaceous wood record (Bamford & Corbett, 1994; Bamford & Corbett, 1995; Bamford & Philippe, 2001; Bamford et al ., 2002; Bamford & Stevenson, 2002).…”

Section: Data and Resultsmentioning

confidence: 99%

The palaeoxylological record of Metapodocarpoxylon libanoticum (Edwards) Dupéron‐Laudoueneix et Pons and the Gondwana Late Jurassic–Early Cretaceous continental biogeography

Philippe

Cuny

Bamford

et al. 2003

Journal of Biogeography

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Aim Vertebrates, palynomorphs and leaf floras each give a different picture of continental biogeography of Northern Gondwana during the Middle Jurassic-Early Cretaceous interval. A new biogeographical marker is required to get a clearer picture.Location Northern part of the Gondwana during the Middle Jurassic-Early Cretaceous interval.Methods Comparisons and correlations of wood data from the literature and new material. ResultsWe have selected Metapodocarpoxylon Dupéron-Laudoueneix et Pons because it has a restricted distribution, temporally and geographically; it is a well-defined Mesozoic fossil wood monospecific genus, and there are wide-ranging data on its distribution.Conclusions Metapodocarpoxylon distribution draws a clear latitudinal belt extending from Lebanon westward to Peru. Climate being the main factor of plant distribution at a global scale, the Metapodocarpoxylon area probably underlines a climatic belt. This has several implications, for example, choosing among different Global Circulation Models or discussing dinosaur distribution.

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Mesozoic woods from India: Nomenclature review and palaeoclimatic implications

Chopparapu¹,

Rajanikanth

2018

Palaeoworld

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An unusual pycnoxylic wood from a new Upper Gondwana locality in Tamil Nadu, India

Cited by 6 publications

References 1 publication

What do the petrified woods of the Sriperumbudur Formation indicate?

What do the petrified woods of the Sriperumbudur Formation indicate?

The palaeoxylological record of Metapodocarpoxylon libanoticum (Edwards) Dupéron‐Laudoueneix et Pons and the Gondwana Late Jurassic–Early Cretaceous continental biogeography

Mesozoic woods from India: Nomenclature review and palaeoclimatic implications

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