Naseby GS 1905 (Oligocene of New Zealand)

Also known as GSNZ coll. 1905

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)

• Listed as "lower bed of greensand". 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, coarse-grained, green sandstone

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

Collection methods: Collected by T.H. Ferrar, 1927

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 35128: authorized by Austin Hendy, entered by Austin Hendy on 13.11.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• Representative collection of mollusca; other groups not mentioned, but may exist.
Bivalvia
 Carditida - Crassatellidae
Spissatella "n. sp. B" Finlay 1926 clam
Listed as "Spissatella n. sp. B"
Spissatella trailli Hutton 1873 clam
fragment
 Pholadida - Corbulidae
"Notocorbula pumila" = Corbula (Notocorbula) clam
Notocorbula humerosa Hutton 1885 clam
 Cardiida - Veneridae
Kuia aff. chariessa venus clam
Listed as "Kuia n. sp. aff. chariessa"
Gastropoda
 Neogastropoda -
"Baryspira sp. n. sp." = Amalda (Baryspira)
"Baryspira sp. n. sp." = Amalda (Baryspira) Fischer 1883 snail
fragment
 Neogastropoda - Volutidae
Spinomelon speighti volute
fragment
 Neogastropoda - Volutomitridae
 Neogastropoda - Turridae
 Neogastropoda - Raphitomidae
 Pleurotomariida - Pleurotomariidae
Pleurotomaria sp. Defrance 1826 snail
fragment
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium sp. n. sp. Linnaeus 1758 tusk shell
fragments
Dentalium cf. solidum Hutton 1873 tusk shell