Deborah Volcanic Fm, Kakanui Beach (Oligocene of New Zealand)

Also known as Coll# 3099 (Hendy PhD)

Where: New Zealand (45.2° S, 170.9° E: paleocoordinates 52.0° S, 172.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Deborah Volcanic Formation (Alma Group), Early/Lower Oligocene (33.9 - 28.4 Ma)

• STRATIGRAPHIC RELATIONS: From the Deborah Volcanic Fm, which is the middle unit of the Alma Group, overlain by McDonald Limestone, and overling the Totara Limestone. AGE: Whaingaroan in text of Gage (1957); Whaingaroan = Rupelian to earliest Chattian. STRATIGRAPHIC POSITION: Tuff's below limestone.

Environment/lithology: coastal; lithified, volcaniclastic, conglomeratic tuff

• ENVIRONMENT: Submarine eruptive phase in shallow marine water.
• GENERAL LITHOLOGY: Variable lithology; commonly red-weathering, massive or coarsely current-bedded tuff, scoria, and basaltic breccia. LITHIFICATION: Lithified, assumed on the basis of age, and facies description.

Reposited in the IGNS

• COLLECTOR: Unknown collector. 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 67928: authorized by Austin Hendy, entered by Austin Hendy on 16.12.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for bivalvia, gastropoda, and scaphopoda. IDENTIFIER: Identified by J. Marwick. NOMENCLATURE: Somewhat antiquated but identified by specialist and often to subgeneric and species resolution.
Show authors, comments, and common names
Bivalvia
 Carditida - Carditidae
"Venericardia benhami" = Glyptoactis (Fasciculicardia) benhami
"Venericardia benhami" = Glyptoactis (Fasciculicardia) benhami Thompson 1908 clam
Gastropoda
 Sorbeoconcha - Cymatiidae
"Mayena sculpturata" = Ranella
"Mayena sculpturata" = Ranella snail
 Sorbeoconcha - Ranellidae
"Austrosassia cyphoides" = Sassia
"Austrosassia cyphoides" = Sassia triton shell
 Neogastropoda - Conidae
Conus (Lithoconus) triangularis
 Neogastropoda - Fasciolariidae
Falsicolus obrutus
 Trochoidea - Turbinidae
"Incilaster marshalli" = Bolma (Ormastralium)
"Incilaster marshalli" = Bolma (Ormastralium) snail