CONFERENCES/SYMPOSIA ATTENDED: National (06)

RESEARCH CONTRIBUTIONS 

Dr. S.R. Jakhar's doctoral thesis work has been published in International by reputed journal of Natural History Museum, New York (Micropaleontology, vol 43, no.1, pp. 1-39, 1997). The paper is entitled "Ostracodes from the Jurassrc beds of Habo Hill, Kachchh, Gujarat, India". In the paper Forty nine ostracode species from the Jurassic beds of Habo Hill, kachchh, Gujarat, India are described. Two genera -a8tella and Habocythere- 20 species ~ aatella cIa vata, a. depressa, Cytherella kalajarensis, Cytherelloidea bhujensis, C. dhrangensis,C. langijarensis, C. paradifficila, Cytehropteriana devai, C. pandeyi, C. sajjaniae, Habocythere diluta, H. ventrisulcata, Majungaella rasilis, Mandelstamia... depecheae, Mesocytheridea ? mathuri, Nophrecythere whatleyi, Procytheridea kachchensis, Progonocythere haboensis, Schuleridea (Eoschuleridea) soodani, and Trichordis (Trichordis) gujaratesis and a species -Majungaella perforate kachhensis -are new. On the basis of the ostracodes, three assemblage zones have been proposed in this work for the beds of Chari Formation. These are, in ascending order. Zone I - Progonocythere l<Jeviscula Zone, Zone I/-Poorly Fossiliferous Zone and zone III ~ Pirileberis remota zone. Late Bathonian ~ Cal/ovianage is assigned forthe beds of zone I and Callovian age for beds of zone II and III of the Chari Formation. The ostracode fauna of the Jurassic beds of the Kachchh shows strongest affinity, besides. Rajasthan, with those of Majunga Basin, Madagascar and to a lesser extent with Tanzania and Central Saudi Arabia. the paleozoogeographic implications of the ostracodes are also discussed jn the paper.