Where: Assam, India (25.5° N, 92.6° E: paleocoordinates 3.4° N, 83.7° E)
• coordinate stated in text
• outcrop-level geographic resolution
When: Sylhet Limestones Formation, Middle Eocene (47.8 - 37.7 Ma)
• "at the topmost horizon of the Sylhet stage... The presence of Nummulites beaumonti indicates a Kirthar age (Middle Eocene)"
• group of beds-level stratigraphic resolution
Environment/lithology: argillaceous limestone
Size class: macrofossils
Collected by S. Gangopadhyaya in 1965 - 1966; reposited in the GSI
• Geological Survey of India, Calcutta collection
Primary reference: U. B. Mathur and S. Gangopadhyaya. 1967. Occurrence of fossil decapod Crustacea in Eocene deposits of Assam. Current Science 36(14):379-380 [J. Alroy/J. Alroy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 81937: authorized by John Alroy, entered by John Alroy on 18.07.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Malacostraca | |
? Galenopsis sp. Milne-Edwards 1865 crab | |
Callianassa sp. Leach 1814 decapod | |
Gastropoda | |
Turritella sp. Lamarck 1799 turret shell | |
Terebellum sp. Röding 1798 true conch | |
Conus sp. Linnaeus 1758 cone shell | |
Natica sp. Scopoli 1777 moon snail | |
Bivalvia | |
Cardium sp. Linnaeus 1758 cockle | |
Echinoidea | |
Echinolampas cf. discoideus sea urchin | |
Foraminifera | |