Squires Farm (Oligocene of New Zealand)

Also known as J39/f8635, J39/f16

Where: New Zealand (44.5° S, 170.9° E: paleocoordinates 50.8° S, 174.5° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Squires Greensand Formation, Duntroonian (27.3 - 25.2 Ma)

Environment/lithology: marine; lithified, fine-grained, glauconitic, pebbly, green, silty, sandy sandstone and lithified, glauconitic, gray limestone

• Beds at the base of the prominent cliff are a light grey glauconitic marl, intensely bioturbated, with greensand infilling of burrows from above (Holme Station Limestone of Gair 1959). A disconformity with minor relief at the top of the marl is overlain by the Squires Greensand, which extends from c. 1.2 m below to 2 m above a prominent 1 m recess in the cliff face (Fig. 2). The Squires Greensand is mostly fine grained, sandy to silty but with some local pebbly beds, and is highly glauconitic. A north-dipping set of beds, c. 30 cm thick, occurs in the recess exposures of the greensand. About 2 m above the recess, the greensand grades upwards into the light grey to cream-coloured, glauconitic Craigmore Limestone(lateral equivalent of the Otekaike Limestone), which forms the upper 6-8 m of the cliff.

Size classes: macrofossils, mesofossils

Collection methods: sieve,

Primary reference: D. MacKinnon, S. S. Beus, and D.L. Lee. 1993. Brachiopod fauna of the Kokoamu Greensand (Oligocene), New Zealand. New Zealand Journal of Geology and Geophysics 36:327-347 [M. Clapham/M. Manojlovic]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 152359: authorized by Matthew Clapham, entered by Marko Manojlovic on 18.11.2013, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Rhynchonellida - Basiliolidae
Aetheia gualteri Morris 1850
 Terebratulida - Terebratellidae
Waiparia elliptica Thomson 1918
Magadina squiresi MacKinnon 1993
"Stethothyris tapirina" = Aliquantula tapirina Hutton 1873
Rhizothyris kokoamuensis Bowen and Campbell 1973
Praemagadina campbelli MacKinnon 1993
 Terebratulida - Bouchardiidae
Neobouchardia minima Thomson 1918
 Terebratulida - Terebratulidae
 Terebratulida - Cancellothyrididae
Chondrichthyes
 Pristiophoriformes - Pristiophoridae
Pristiophorus lanceolatus Davis 1888 saw shark