Where: India (23.4° N, 68.8° E: paleocoordinates 18.1° N, 68.2° E)
• coordinate stated in text
• local area-level geographic resolution
When: Claystone Member (Chhasra Formation), Burdigalian (20.4 - 16.0 Ma)
• STRATIGRAPHIC RELATIONS: From Claystone Member of Chhasra Fm, which conformably overlies the Khari Nadi Fm (Aquitanian) and is unconformably overlain by the Sandhan Fm (Middle Miocene-Pliocene). AGE: Burdigalian (Early Miocene). Biostratigraphic assignment based on larger foraminifera (see Biswas, 1992). STRATIGRAPHIC POSITION: From Claystone Member, from unknown position within formation.
• formation-level stratigraphic resolution
Environment/lithology: marine; poorly lithified, shelly/skeletal limestone and poorly lithified claystone
Size class: macrofossils
Collection methods: surface (in situ), hydrochloric,
• COLLECTORs: Unknown, probably Borkar. REPOSITORY: Repository of Geology and Paleontology Group, Agharakar Research Institute, Prune, India. PREPARATION TECHNIQUES: Artificial epoxy resin casts, and HCL dissolution of skeletal material.
Primary reference: K. G. Kulkarni, S. Bhattacharjee, and V. D. Borkar. 2007. Entobian bioerosion of Miocene oysters, Kachchh, Gujarat. Journal of the Geological Society of India 69:827-833 [A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 76317: authorized by Austin Hendy, entered by Austin Hendy on 18.11.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Gymnolaemata | |
Reptoporina chhasraensis Guha and Gopikrishna 2007
Planicellaria naliyaensis Guha and Gopikrishna 2007 | |
Bivalvia | |
Crassostrea gingensis oyster | |
Hyotissa hyotis Linnaeus 1758 Honeycomb Oyster | |
Demospongiae | |
Entobia "sp. A" Bronn 1838 demosponge
Entobia cateniformis Bromley and D'Alessandro 1984 demosponge
Entobia laquea Bromley and D'Alessandro 1984 demosponge |