S136/f544 - Gee Greensand, Campbells Beach (Miocene of New Zealand)

Also known as GS3870; Coll# 3078 (Hendy PhD)

Where: New Zealand (45.0° S, 170.9° E: paleocoordinates 50.8° S, 177.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Gee Greensand Formation (Kaierero Group), Otaian (21.7 - 19.0 Ma)

• STRATIGRAPHIC RELATIONS: From Gee Greensand, which is the lower unit of the Kaierero Group, overlying the Otekaike Limestone of the Otiake Group. AGE: Otaian-Hutchinsonian in text of Gage (1957), but largely Otaian and latest Waitakian in Table 3; late Waitakian-Otaian = Aquitanian; hereby assigned to the Otaian age in ensure collection is not orphaned. STRATIGRAPHIC POSITION: From phosphatic zone.

• bed-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified, fine-grained, glauconitic, phosphatic, shelly/skeletal, green sandstone

• ENVIRONMENT: Shallow marine, siliciclastic. Slow accumulation.
• SPECIFIC LITHOLOGY: Pure greensand grades upwards to glauconitic fine sand, layers rich in fossil and with harder calcified bands; brachiopods common throughout and molluscs mainy restricted to concretionary lenses near the base; phopshatic. LITHIFICATION: Poorly lithified, largely assumed, as no indication is given text of lithification state, except that harder calcified layers are contrasted with the background lithology.

Size class: macrofossils

Preservation: concretion

Reposited in the IGNS

Collection methods: quarrying,

• COLLECTOR: Unknown collectors. 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 67887: authorized by Austin Hendy, entered by Austin Hendy on 14.12.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for bivalvia and gastropoda. IDENTIFIER: Presumably O. P. Olson. NOMENCLATURE: Somewhat antiquated but identified by specialist and often to subgeneric and species resolution.
Show authors, comments, and common names
Bivalvia
 Ostreida - Ostreidae
Ostrea sp.
Ostrea sp. Linnaeus 1758 oyster
 Cardiida - Cardiidae
Nemocardium sp.
Nemocardium sp. Meek 1876 cockle
Gastropoda
 Sorbeoconcha - Ranellidae
"Austrosassia sp." = Sassia, ? Cymatium sp.
"Austrosassia sp." = Sassia Bellardi 1872 triton shell
? Cymatium sp. Röding 1798 triton shell
 Sorbeoconcha - Cypraeidae
Cypraea sp.
Cypraea sp. Linnaeus 1758 cowry