A new species of Agathoxylon Hartig from the Sriperumbudur formation, Tamil Nadu, India
Keywords:
Agathoxylon, Sriperumbudur Formation, Upp., Jurassic-Low Cretaceous
Abstract
Sriperumbudur Formation is one of the Upper Gondwana rock Formations found along the Palar basin, Tamil Nadu, India. The rock units found in this Formation are arenaceous and argillaceous, consists of green shales, clays and sandstones with limestone intercalations. These shales contain animal and plant remains of Upper Jurassic-Lower Cretaceous age. The present work is about a piece of petrified secondary wood of conifer having affinity with Araucariaceae. Based on the anatomical characters the present wood is identified as a new species of Agathoxylon Hartig.
References
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Feistmantel O. 1879. The fossil flora of the Upper Gondwana: Outliers on the Madras coast. Mem. geol. Surv. India, Palaeont. indica. Ser., 2, 1(4): 191–224.
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Jeyasingh DEP and Kumarasamy D. 1994b. Occurrence of Pityospermum Nathorst in the Sriperumbudur Formation, Tamil Nadu. Curr. Sci., 67(5): 305.
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Ramanujam CGK and Varma YNR. 1977. Palynological evidence for the age of Sriperumbudur beds encountered in a bore hole at Orikkai near Conjeevaram, Tamil Nadu. J. Geol. Soc. India, 18(8): 429–435.
Ramanujam CGK and Varma YNR. 1981. Hillate spores from the Upper Gondwana deposits of Palar basin, Tamil Nadu. Palaeobotanist, 28-29, 308–315.
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Seward AC and Sahni B. 1920. Indian Gondwana plants: a revision. Mem. geol. Surv. India, Palaeont. indica n. ser., 7(1): 1–41.
Suryanarayana K. 1953. Mesembrioxylon tirumangalense, a new species from the Sriperumbudur group near Madras. J. Indian bot. Soc., 32(4): 159–164.
Suryanarayana K. 1954. Fossil plants from the Jurassic rocks of the Madras coast, India. Palaeobotanist, 3: 87–90.
Varma YNR. 1983. Erlansonisporites potonie, megaspores from the Sriperumbudur beds of Palar basin, Tamil Nadu. Geophytology, 13(2): 235–236.
Varma YNR. 1984. Gymnospermous palynomorphs from the Upper Gondwana of India. Indian J. Bot., 7(2): 190–197.
Varma YNR and Ramanujam CGK. 1984. Palynology of some Upper Gondwana deposits of Palar basin, Tamil Nadu, India. Palaeontographica B. 190 (1-3): 37–86.
Feistmantel O. 1879. The fossil flora of the Upper Gondwana: Outliers on the Madras coast. Mem. geol. Surv. India, Palaeont. indica. Ser., 2, 1(4): 191–224.
Harsh R and Sharma BD. 1988. Araucarioxylon bikanerense sp. nov. from the Tertiary of Bikaner, Rajasthan, India. Phytomorphology, 38: 111-115.
Jeyasingh DEP and Kumarasamy D. 1994a. Araucarioxylon from the Sriperumbudur Formation, Upper Gondwana, Tamil Nadu, India. Geophytology, 24(1): 43–48.
Jeyasingh DEP and Kumarasamy D. 1994b. Occurrence of Pityospermum Nathorst in the Sriperumbudur Formation, Tamil Nadu. Curr. Sci., 67(5): 305.
Jeyasingh DEP and Kumarasamy D. 1995. An unusual pycnoxylic wood from a new Upper Gondwana locality in Tamil Nadu, India. Rev. Palaeobot. Palynol., 85(3-4): 341-350.
Kräusel R and Jain KP. 1964. New fossil coniferous woods from the Rajmahal hills, Bihar, India. Palaeobotanist, 12(1): 59–67.
Kumaraguru P. 1991. Stratigraphic drilling in palar Basin, Tamil Nadu.Rec.geol.Surv.Ind.,124(5):139-143.
Kumarasamy D. 2013. A fossil araucarian wood from the Sriperumbudur formation, Tamil Nadu, India. Inter. J. Plant Animal Environ. Sci., 3(1): 50–55.
Kumarasamy D and Jeyasingh DEP. 1995. Some fossil pteridophytic foliage from the Sriperumbudur Formation, Tamil Nadu, India. Phytomorphology, 45 (3 and 4): 175–183.
Kumarasamy D and Jeyasingh DEP. 2004. A new species of Cupressinoxylon Göeppert from the Sriperumbudur Formation, India. Phytomorphology, 54: 97–104.
Kumarasamy D and Jeyasingh DEP. 2007. Sahnioxylon (Sahni) Bose and Sah from the Sriperumbudur Formation, Tamil Nadu, India. Phytomorphology, 57: 5–12.
Philippe M. 1993. Nomenclature generique des tracheidoxyles fossiles Mesozoiques a Champs araucarioides. Taxon., 42(1):74-80.
Philippe M. 2011. How many species of Araucarioxylon? Palevol. Fasicule. 10( 2-3): 201-208.
Ramanujam CGK and Srisailam K. 1974. Palynology of the carbonaceous shales from a bore hole at Kattavakkam near Conjeevaram, Tamil Nadu, India. Pollen et Spores, 16(1), 67–102.
Ramanujam CGK and Varma YNR. 1977. Palynological evidence for the age of Sriperumbudur beds encountered in a bore hole at Orikkai near Conjeevaram, Tamil Nadu. J. Geol. Soc. India, 18(8): 429–435.
Ramanujam CGK and Varma YNR. 1981. Hillate spores from the Upper Gondwana deposits of Palar basin, Tamil Nadu. Palaeobotanist, 28-29, 308–315.
Sahni B. 1928. Revision of Indian fossil plants: part I – Coniferals (a. Impressions and Incrustations). Mem. geol. Surv. India, Palaeont, indica n. ser., 11: 1–49.
Sahni B. 1931. Revision of Indian fossil plants: part II – Coniferals (b. Petrifactions). Mem. geol. Surv. india, Palaeont. Indica n. ser., 11: 51–124.
Seward AC and Sahni B. 1920. Indian Gondwana plants: a revision. Mem. geol. Surv. India, Palaeont. indica n. ser., 7(1): 1–41.
Suryanarayana K. 1953. Mesembrioxylon tirumangalense, a new species from the Sriperumbudur group near Madras. J. Indian bot. Soc., 32(4): 159–164.
Suryanarayana K. 1954. Fossil plants from the Jurassic rocks of the Madras coast, India. Palaeobotanist, 3: 87–90.
Varma YNR. 1983. Erlansonisporites potonie, megaspores from the Sriperumbudur beds of Palar basin, Tamil Nadu. Geophytology, 13(2): 235–236.
Varma YNR. 1984. Gymnospermous palynomorphs from the Upper Gondwana of India. Indian J. Bot., 7(2): 190–197.
Varma YNR and Ramanujam CGK. 1984. Palynology of some Upper Gondwana deposits of Palar basin, Tamil Nadu, India. Palaeontographica B. 190 (1-3): 37–86.
Published
2014-01-18
How to Cite
D, K. (2014). A new species of Agathoxylon Hartig from the Sriperumbudur formation, Tamil Nadu, India. Journal of Research in Biology, 3(7), 1105-1110. Retrieved from https://ojs.jresearchbiology.com/ojs1/index.php/jrb/article/view/319
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