Document Type : Original Research Paper

Author

Faculty of Geology, College of Science, Tehran University, Tehran, Iran

Abstract

There is a well-preserved plant macrofossils florizone near the Tiar village, south Amol, Central Alborz, Iran. It contains abundant plant maccrofossils belonging to 9 taxa of various orders, such as Equisetales, Filicales, Bennettitales, Cycadales, Ginkgoales and Coniferales. Based on the occurrence of Equisetites beanii and Elatides thomasii an earlyMiddle Jurassic age is suggested for this assemblage. This florizone can be correlated to the plant macrofossils assemblage of Iva (Baladeh), Rudbarak (NE Semnan), Central Alborz; Golmakan (Binalud, Kopehdagh) and Pabdana and Hashooni (KermanBasin).
 

Keywords

References
Assereto, A., 1966- The Jurassic of Shemshak in Central Elburz (Iran). Rivista Italiana di Plaleontologia e Stratigrafia 72, 1133-1184.
Barnard, P.D.W., 1967- Flora of the Shemshak Formation. Part 2. Liassic plants from Shemshak and Ashtar. Rivista Italiana di Plaleontologia e Stratigrafia 73, 539-589.
Bragin, Y., Jahanbakhsh, F., Golubev, S. & Sadovnikov, G., 1976- Stratigraphy of the Triassic-Jurassic Coalbearing deposits of Alborz. National 
Bunbury, C.J.F., 1851- On some fossil plants from the Jurassic strata of  the YorkshireCoast. Quarterly  Journal of Geological Society of  London 7, 179-194.
Cartier, E.T., 1971- Die geologie des unteren Chalus-Tals, Zentral-Alborz/Iran. Mitteilungen Geol. Inst. ETH und Univ. Zürich 164, 1-133.
Corsin, P. & Stampfli, G., 1977- La formation de Shemshak dans l'Elburz oriental Iran flore-stratigraphie-paléogéographie. Geobios 10, 509- 571.
Fakhr, M.S., 1977-Contribution a l'étude de la flore Rhéto – Liasique de la formation de Shemshak de l'Elbourz (Iran). Mémoire de  Section de  Science  5, 178 pp., pl. I-LI. Paris.
Florin, R., 1936- Die fossilen Ginkgophyten von Franz-Joseph-Land nebst Erörterungen über vermeintliche Cordaitales mesozoischen Alters, I. Spezieller Teil. Palaeontographica B 81, 71-173, 11-42 pl.
Fürsich, F.T., Wilsen, M., Seyed-Emami, K. & Majidifard, M.R., 2009a- Lithostratigraphy of the Upper Triassic –Middle Jurassic Shemshak Group of northern Iran. Geological Society, Special Publications, 312, 120-160.
Fürsich, F.T., Wilsen, M., Seyed-Emami, K. & Majidifard, M.R., 2009b- The Mid-Cimmerian tectonic event (Bajocian) in the AlborzMountains, northern Iran: evidence of the break-up unconformity of the SouthCaspianBasin. Geological Society, Special Publications, 312, 189-203.
Harris, T.M., 1961- The Yorkshire Jurassic flora. I. Thallophyta-Pteridophyta. BritishMuseum (Natural History), Alden Press, London, 212 pp.
Harris, T.M., 1979- The Yorjshire Jurassic flora. V. Coniferales. BritishMuseum (Natural History). London,  166pp.
Kilpper, K., 1968- Einige Bennettiteen-Blätter aus dem Lias von Karmozd-Zirab.Journal de Linnée de la Société (Botanique) 61, 129-135.
Pomel, A., 1849- Matériaux pour servir à la flore fossile des terrains jurassiques de la France. Amtliche Berichte 25 Versammlung der Gesselschaft den Naturforschender Ärzte, Achen, 332-354.
Presl, K. in Sternberg, K.G., 1838- Versuch einer geognostisch-botanischen Darshtellung der Flora der Vorwelt. Fleischer, Prague, 220 pp.
Salfeld, H., 1907- Fossile Land-Pflanzen der Rät und Jura Formation Südwestdeutschlands. Palaeontographica 54, 163-204, 14-22 pl.
Schweitzer, H.-J. & Kirchner, M., 1995- Die rhäto-jurassischen Floren des Iran und Afghanistans. 8. Ginkgophyta. . Palaeontographica B 237 (1-3), 1-58.
Schweitzer, H.-J. & Kirchner, M., 1996- Die rhäto-jurassischen Floren des Iran und Afghanistans. 9. Coniferophyta. . Palaeontographica B 238 (4-6), 77-139.
Schweitzer, H.-J. & Kirchner, M., 2003- Die rhäto-jurassischen Floren des Iran und Afghanistans 13. Cycadophyta. III. Bennettitales. Palaeontographica B 264 (1-6), 1-166.
Schweitzer, H.-J., Van-Konijnenburg-Van Cittert, J.H.A. & Van Der Burgh, J., 1997- The Rhaeto-Jurassic flora of Iran and Afghanistan. 10. Bryophyta, Lycophyta, Sphenophyta, Pterophyta-Eusporangiatae and Protoleptosporangiatae. Palaeontographica B 243 (4-6), 103-192.
Schweitzer, H.-J., Kirchner, M. & Van-Konijnenburg-Van Cittert, J.H.A., 2000- The Rhaeto-Jurassic flora of Iran and Afghanistan. 12. Cycadophyta II. Nilssoniales. Palaeontographica B 254 (1-3), 1-63, 24 pls.
Schweitzer, H.-J., Schweitzer, U., Kirchner, M., Van-Konijnenburgh-Van Cittert, J.H.A., Van  der Burgh, J. & Ashraf, R.A., 2009- The Rhaeto-Jurassic flora of Iran and Afghanistan. 14. Pterophyta- Leptosporangiatae. Palaeontographica B 279 (1-6), 1-108, 50 pl.
Seward, A.C., 1894- The Wealden flora, Part I.- Thallophyta- Pteridophyta.- Catalogue of the Mesozoic plants in the Department of Geology, BritishMuseum (Natural History), 1: 1-179. London.
Turutanova-Ketova, A.I., 1930- Jurassic flora of the Chain Kara-tau (Tian-Shan). Travaux du Museum géologique de Leningrad 6, 131-172. (In Russian)
Vaez-Javadi, F. & Mirzaei-Ataabadi, M., 2006- Jurassic plant macrofossils from the Hojedk Formation Kerman area , east- central Iran. Alcheringa, 30: 63-96.
Vaez-Javadi, F. & Ghavidel -Syooki, M., 2002- Plant megafossil remains from Shemshak Formation of Jajarm area, NE Alborz, Iran. Paleobotanist, 51: 57-72.
Vaez-Javadi, F., 2008- Plant macrofossils of Iran. Department of Environment press, Tehran, 236 pp. (In Persian)
Vaez-Javadi, F., 2011- Middle Jurassic flora from the Dansirit Formation of the Shemshak Group, Alborz, north Iran. Alcheringa , 35 (1: 77-102).