Otekaike Limestone (Marwick collection) - Otiake (Oligocene of New Zealand)

Also known as Coll# 3073 (Hendy PhD)

Where: New Zealand (44.8° S, 170.5° E: paleocoordinates 51.0° S, 175.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Otekaike Limestone Formation (Otiake Group), Late/Upper Oligocene (28.4 - 23.0 Ma)

• STRATIGRAPHIC RELATIONS: From Otekaike Limestone, which is the upper unit of the Otiake Group, overlying the Kokoamu Greensand, and is overlain by the Gee Greensand of the Kaierero Group. AGE: Duntroonian-Waitakian in text of Gage (1957), but largely Waitakian in Table 3; Waitakian = Late Chattian-early Aquitanian; hereby assigned a Late Oligocene age in ensure collection is not orphaned. STRATIGRAPHIC POSITION: Unknown position within formation.

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, calcareous limestone

• ENVIRONMENT: Shallow marine, carbonate.
• SPECIFIC LITHOLOGY: Limestone, highly calcareous. LITHIFICATION: Lithified, largely assumed, as no indication is given text of lithification state, although text says unit is cliff forming and highly calcareous, and limestone.

Size class: macrofossils

Reposited in the IGNS

Collection methods: quarrying,

• COLLECTOR: Collected and identified by J. A. Marwick. 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 67859: authorized by Austin Hendy, entered by Austin Hendy on 13.12.2006, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for bivalvia, gastropoda, and scaphopods. NOMENCLATURE: Somewhat antiquated but identified by specialist and often to subgeneric and species resolution.
Bivalvia
 Cardiida - Veneridae
Dosinia (Dosinia) lambata, Dosinia (Austrodosinia) waitakiensis, "Dosinula uttleyi" = Dosina, "Notocallista (Fossacallista) watti" = Fossacallista
"Dosinula uttleyi" = Dosina venus clam
"Notocallista (Fossacallista) watti" = Fossacallista venus clam
Gastropoda
 Neogastropoda - Volutidae
 Naticoidea - Naticidae
"Polinella obscurata" = Polinices (Polinella) moon snail
Actinopteri
 Perciformes - Cottidae
Cottus otiakensis n. sp. Frost 1928 perch-like fish