Harudi Fm (Eocene of India)

Where: India (23.4° N, 68.8° E: paleocoordinates 5.8° N, 61.8° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Harudi Formation, Lutetian (47.8 - 41.3 Ma)

• STRATIGRAPHIC RELATIONS: From Harudi Fm, which unconformably overlies the Naredi Fm (Late Paleocene-early Eocene) and is conformably overlain by the Fulra Fm (Middle to early Late Eocene). AGE: Lutetian (early Middle Eocene). Biostratigraphic assignment based on larger foraminifera (see Biswas, 1992). STRATIGRAPHIC POSITION: From unknown position within formation.

• formation-level stratigraphic resolution

Environment/lithology: marine; poorly lithified limestone and poorly lithified claystone

• ENVIRONMENT: Environmental data not reported in text.
• SPECIFIC LITHOLOGY: Claystone, limestone, and coquina. LITHIFICATION: Poorly lithified, assumed on the basis of figured specimens.

Size class: macrofossils

Collected by Guha, Gopikrisha in 2005; reposited in the GSI

Collection methods: surface (in situ),

• COLLECTORs: Guha and Gopikrisha (2005). REPOSITORY: Central Fossil Repository of the Geological Survey of India, Kolkata, India. PREPARATION TECHNIQUES: Ultrasonic cleaning.

Primary reference: A. K. Guha and K. Gipikrishna. 2007. New fossil steginoporellid and schizoporellid species (Bryozoa, Cheilostomata) from the Tertiary sequences of western Kachchh, Gujarat and their significance. Journal of the Geological Society of India 69:803-812 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 76316: authorized by Austin Hendy, entered by Austin Hendy on 18.11.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• COMPLETENESS: Only includes bryozoan taxa (subject of article), but bivalvia (oysters), gastropoda, and large foraminifera (see Biswas, 1992) are mentioned to be present.
 Nummulitacea - Discocyclinidae
 Cheilostomata - Schizoporellidae
Therenia indica Guha and Gipikrishna 2007
 Cheilostomata - Calloporidae
Aplousina sp.2 Canu and Bassler 1927
 Cheilostomata - Steginoporellidae
Reniporella gordoni Guha and Gopikrishna 2004
 Cheilostomata - Thalamoporellidae
Thalamoporella reniformis Guha and Gopikrishna 2004
 Cyclostomata - Oncousoeciidae
Oncousoecia narediensis1 Guha and Gopikrishna 2007
Proboscina sp.1 Audouin 1826
 Cyclostomata - Stomatoporidae
Stomatopora illiesae1 Guha and Gopikrishna 2007
Voigtopora reticulata1 Guha and Gopikrishna 2007
 Cyclostomata - Plagioeciidae
Plagioecia taylori1 Guha and Gopikrishna 2007
 Cyclostomata - Tubuliporidae
Idmidronea sp.1 Canu and Bassler 1920
 Cyclostomata - Diastoporidae
Discosparsa lakhpatensis1 Guha and Gopikrishna 2007