S127/f555 - Waihao Downs [Incholme Mbr, Tapui Glauconitic Sst] (Eocene of New Zealand)

Also known as GS5644

Where: New Zealand (44.8° S, 170.9° E: paleocoordinates 52.3° S, 167.4° 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 64747: authorized by Austin Hendy, entered by Austin Hendy on 13.09.2006, edited by Uta Merkel

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.
Scaphopoda
 Dentaliida - Dentaliidae
Gastropoda
 Cerithioidea - Turritellidae
Zeacolpus sp. Finlay 1926 turret shell
 Sorbeoconcha - Naticidae
Magnatica fons moon snail
Carinacca allani moon snail
 Neogastropoda - Volutidae
"Waihaoia cf. suteri" = Alcithoe (Waihaoia)
"Waihaoia cf. suteri" = Alcithoe (Waihaoia) volute
 Neogastropoda - Speightiidae
Anthozoa
 Scleractinia - Caryophylliidae
Caryophyllia clavus, "Stephanocyathus (Odontocyathus) tatei" = Stephanocyathus (Acinocyathus) spiniger
Caryophyllia clavus Scacchi 1835 stony coral
subsp. zelandiae
"Stephanocyathus (Odontocyathus) tatei" = Stephanocyathus (Acinocyathus) spiniger Marenzeller 1888 stony coral
 Scleractinia - Flabellidae
Flabellum apertum Moseley 1876 stony coral