Also known as BSIP Section J(743B)

Where: Gujarat, India (23.3° N, 69.8° E: paleocoordinates 36.9° S, 36.9° E)

• coordinate estimated from map

When: Bhuj Formation, Late/Upper Aptian to Late/Upper Aptian (122.5 - 109.0 Ma)

• Previous authors have considered this section to be Middle-Late Jurassic or Early Cretaceous; palynostratigraphy indicates that it is likely late Aptian - early Albian in age (Kumar 2018)

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; shale and sandstone

Size class: microfossils

Preservation: original sporopollenin

Collection methods: surface (in situ), chemical,

• Repository: Birbal Sahni Institute of Palaeobotany, Lucknow, Uttar Pradesh, India

•Venkatachala 1968: "Ten-twelve grams of material were kept in Hydrofluoric acid (40%) for 2-4 days followed by Nitric acid (40%) for 2-3 days. Potassium hydroxide solution (3%) was used for 2-3 minutes. The slides were prepared with Polyvenyl alcohol and mounted in canada balsam."

•Banerji et al. 1984: "Each megaspore was first photographed in dry state under reflected light and its characters were noted. After photographing in dry state, the megaspore was transferred to a covered petridish and was oxidised with nitric acid, sometimes using potassium chlorate. The oxidised material was digested with potassium hydroxide and cleaned with water. Observations were made at frequent intervals during this progressive maceration and photographs were taken, as and when felt necessary, by transmitted light."

Primary reference: J. Banerji, B. N. Jana, and H. K. Maheshwari. 1984. The Fossil Floras of Kachchh. II - Mesozoic Megaspores. The Palaeobotanist 33:190-227 [R. Lupia/T. Naeher/T. Naeher]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 32378: authorized by Rick Lupia, entered by Tiffany Naeher on 27.06.2003, edited by Bethany Allen

Creative Commons license: CC BY (attribution)