Lower Otaio Limonitic Member, McCulloch's Bridge (Eocene of New Zealand)

Also known as LOLM

Where: Canterbury, New Zealand (44.8° S, 171.2° E: paleocoordinates 52.1° S, 169.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Lower Otaio Limonitic Member (Waihao Greensand Formation), Late/Upper Eocene (37.2 - 33.9 Ma)

• From the Lower Otaio Limonitic member of the Waihao Greensand. Bortonian in age (Late Eocene). Cemented band and lower 2 m over overlying greensand. Overlies Lower Greensand Member.

• group of beds-level stratigraphic resolution

Environment/lithology: deep-water; lithified, ferruginous sandstone

• Offshore lower shelf to slope environments, 150-250 m based on autoecological analyses.
• Cemented sandstone band, rusty-brown, with sparse macrofauna.

Size class: macrofossils

Collection methods: quarrying,

• Material reposited in IGNS collections (NZ Geol. Surv.). Collected by P.A. Maxwell and others.

Primary reference: P. A. Maxwell. 1992. Eocene Mollusca from the vicinity of McCulloch's Bridge, Waihao River, South Canterbury, New Zealand: Paleoecology and systematics. New Zealand Geological Survey Paleontological Bulletin 65:1-280 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 45040: authorized by Austin Hendy, entered by Austin Hendy on 29.09.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive. Including some type specimens.
Bivalvia
 Carditida - Carditidae
 Cardiida - Tellinidae
Moerella securiclata Maxwell 1992 tellin clam
Type locality
 Pholadida - Corbulidae
 Ostreida - Gryphaeidae
Pycnodonte mackayi oyster
Genus sensu lato
 Pectinida - Pectinoidae
Serripecten marwicki Maxwell 1992 scallop
Type locality
 Nuculanida - Nuculanidae
Pseudoportlandia ? tahuia Marwick 1942 pointed nut clam
"?" listed in occurrence field
Saccella semiteres Hutton 1877 pointed nut clam
Gastropoda
 Cerithioidea - Turritellidae
Zeacolpus sp. n. sp. Finlay 1926 turret shell
 Sorbeoconcha - Naticidae