S127/f540 - Otekaike River [Incholme Mbr, Tapui Glauconitic Sst] (Eocene of New Zealand)

Also known as GS5641

Where: New Zealand (44.8° S, 170.5° E: paleocoordinates 52.3° S, 167.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Incholme Glauconitic Sand Member (Tapui Glauconitic Sandstone Formation), Bartonian (41.3 - 38.0 Ma)

• STRATIGRAPHIC RELATIONS: From Incholme Glauconitic Sand Mbr of the Tapui Glauconitic Sand Fm, immediately overlying the Kauru Fm (Teurian), and overlain locally by Raki Siltstone (Kaiatan). AGE: upper Bortonian of Gage (1957) = Bartonian. STRATIGRAPHIC POSITION: From upper member within the formation.

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, fine-grained, glauconitic, micaceous, calcareous, carbonaceous sandstone

• ENVIRONMENT: Deposited in still water beyond reach of strong wave action.
• SPECIFIC LITHOLOGY: Fine calcareous micaceous sand, with fine glauconite and unusually fine, disseminated carbonaceous material. LITHIFICATION: Presumably lithified, based on facies description (detailed in Gage 1957), taphonomy, and age.

Size class: macrofossils

Preservation: cast, mold/impression, concretion

Reposited in the IGNS

Collection methods: quarrying,

• COLLECTOR: Collected by various authors, which may include: Marwick (1924-1944), Laws (1930-1941), and Powell (1942). REPOSITORY: New Zealand Geological Survey (now GNS Science, Lower Hutt, New Zealand).

Primary reference: M. Gage. 1957. The Geology of the Waitaki Subdivision. New Zealand Geological Survey Bulletin 55 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 64746: authorized by Austin Hendy, entered by Austin Hendy on 13.09.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for bivalvia, gastropoda, and brachiopoda. IDENTIFIER: J.A. Marwick and O.P Olson(NZGS). NOMENCLATURE: Somewhat antiquated but identified by specialist and often to subgeneric and species resolution.
Gastropoda
 Opisthobranchia - Cylichnidae
? Cylichnania sp. Marwick 1931 snail
 Cerithioidea - Turritellidae
 Sorbeoconcha - Naticidae
 Neogastropoda - Conidae
 Neogastropoda - Turridae
"Eoturris neglectus" = Eopleurotoma
"Eoturris neglectus" = Eopleurotoma turrid
 Neogastropoda - Mitromorphidae
? Scrinium "n. sp." Hedley 1922 snail
 Neogastropoda - Fasciolariidae
? Falsicolus sp. Finlay 1930 snail
 Neogastropoda - Buccinidae
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium "n. sp." Linnaeus 1758 tusk shell
Bivalvia
 Arcida - Cucullaeidae
 Ostreida - Ostreidae
Cubitostrea gudexi Suter 1917 oyster
 Pectinida - Pectinoidae
 Cardiida - Cardiidae
Hedecardium brunneri Hector 1886 cockle
 Carditida - Crassatellidae
Spissatella sp. Finlay 1926 clam