Naseby GS 488 (Oligocene of New Zealand)

Also known as Geological Survey coll. 488

Where: Central Otago, New Zealand (45.0° S, 170.1° E: paleocoordinates 51.2° S, 175.5° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Naseby Greensand Formation (Stranraer Group), Late/Upper Oligocene (28.4 - 23.0 Ma)

• Described in text as from units of the Naseby Series (now Naseby Greensand), part of the Pareora Formation of Hutton (1875). From Bishop (1979): Naseby Greensand (Stranraer Group) is approximatey 250-300 m thick, underlain by metamorphosed schist or siltstone of the Eocene Swinburn Formation (Stranraer Group), and overlain conformably by current-bedded quartz sands and gravels of the late Oligocene/early Miocene Wedderburn Formation (Stranraer Group).

•Bishop, D.G. 1979: Sheet 135, Ranfurly (1st ed.) "Geological Map of New Zealand 1:63 360". N.Z. Dept. Sci. Ind. Res., Wellington

• bed-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified, sideritic sandstone

• From Bishop (1979) "....part of marine-terrestrial transgressive-regressive sequence of the Stranraer Group in the Maniototo basin"; "marine wedge thins rapidly westward,"
• "Limonitic sandstone (decomposed greensands)"

•From Bishop (1975): The greensand is a coarse and quartzose, with common bands, nodules and patches of limnoite,, and with thin lensoid beds of angular quartz pebbles.....Macrofossils are numerous.

Size class: macrofossils

Preservation: cast

Collection methods: quarrying,

• Collected by McKay, 1883.

Primary reference: J. H. Williamson. 1939. The Geology of the Naseby Subdivision, Central Otago. New Zealand Geological Survey Bulletin 39 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 35115: authorized by Austin Hendy, entered by Austin Hendy on 12.11.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• Representative collection of mollusca; other groups not mentioned but may exist.
 Arcida - Arcidae
Barbatia sp. Gray 1842 clam
 Arcida - Glycymerididae
Glycymeris aff. robusta clam
Listed as "Glycymeris n. sp. aff. robusta"
 Arcida - Cucullaeidae
 Pectinida - Pectinoidae
Chlamys aff. compitum scallop
Listed as "Chamys n. sp. aff. compitum"
 Carditida - Crassatellidae
Spissatella cf. trailli Hutton 1873 clam
 Cardiida - Mactridae
Scalpomactra sp. n. sp. Finlay 1928 clam
 Cardiida - Veneridae
Marama sp. Marwick 1927 venus clam
Dosinia sp. Scopoli 1777 venus clam
Notocallista sp. Iredale 1924 venus clam
 Cardiida - Tellinidae
"Peronidia aff. edgari" = Angulus (Peronidia)
"Peronidia aff. edgari" = Angulus (Peronidia) tellin clam
 Cardiida - Cardiidae
"Cardium cf. waitakiense" = Hedecardium waitakiense
"Cardium cf. waitakiense" = Hedecardium waitakiense Suter 1917 cockle
 Hiatellida - Hiatellidae
Panopea worthingtoni Hutton 1873 clam
 Cephalaspida -
 Calyptraeoidea - Calyptraeidae
Maoricrypta wilckensi slipper shell
 Sorbeoconcha - Turritellidae
Spirocolpus sp. Finlay 1926 turret shell