Trig Z: Waitakian, New Zealand

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Chaeomysticeti indet.
Marx et al. 2019 1 specimen
OU 12654
Globigerinidae
Globoturborotalita woodi (Jenkins 1960)
Tanaka and Fordyce 2014
Bivalvia - Cardiida - Veneridae
Proxichione otiakensis n. sp. Maxwell 1978
Maxwell 1978
Gastropoda - Eratoidae
Proterato neozelanica (Murdoch 1924)
Beu et al. 1990
Mammalia - Cetacea - Waipatiidae
Prosqualodon marplesi n. sp. Dickson 1964
recombined as Otekaikea marplesi
see common names

Geography
Country:New Zealand State/province:North Otago
Coordinates: 44.8° South, 170.5° East (view map)
Paleocoordinates:50.6° South, 176.3° West
Basis of coordinate:stated in text
Time
Key time interval:Waitakian
Age range of interval:25.20000 - 21.70000 m.y. ago
Stratigraphy
Formation:Otekaike Limestone Member:Miller
Stratigraphy comments: Graham et al. [24] gave strontium dates for the Trig Z sequence (derived from analysis of foraminifera and macrofossils, mainly pectinids), including 23.6 to 24.2 Ma for the upper part of the Miller Member (I40/f305; 87Sr/86Sr values include 0.708263+/2 0.000011), and 23.3 to 23.9 Ma for the base of the G. woodi zone (I40/f304; 87Sr/86Sr =0.708258+/20.000011). The age for Otekaikea marplesi is taken here as $23.9 Ma.

The type- locality lies at or near the right side of Gage’s ([22]: Fig. 25) photograph of the type locality of the Waitakian Stage. The locality has been prospected, but no other significant material of O. marplesi has been found.

Was given as Chattian.
Lithology and environment
Primary lithology:brown,yellow calcareous siltstone
Includes fossils?Y
Lithology description: yellow or brown calcareous silt with shellbeds and large low-angle cross- beds
Environment:marine indet.
Taphonomy
Modes of preservation:body,original phosphate
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Also known as:I40/f30
Database number:45664
Authorizer:M. Uhen, P. Wagner Enterer:M. Uhen, P. Wagner
Modifier:M. Uhen Research group:vertebrate
Created:2004-11-21 11:27:07 Last modified:2020-04-06 16:04:57
Access level:the public Released:2004-11-21 11:27:07
Creative Commons license:CC BY
Reference information

Primary reference:

12041. M. R. Dickson. 1964. The skull and other remains of Prosqualodon marplesi, a new species of fossil whale. New Zealand Journa of Geology and Geophysics 7:626-635 [M. Uhen/M. Uhen/M. Uhen]

Secondary references:

11706 A. G. Beu, P.A. Maxwell, and R.C. Brazier. 1990. Cenozoic Mollusca of New Zealand. New Zealand Geological Survey Paleontological Bulletin 58 [A. Miller/A. Hendy/A. Hendy]
12036 R. E. Fordyce. 1980. The Fossil Cetacea of New Zealand. New Zealand Geological Survey Report 90:1-60 [M. Uhen/M. Uhen/M. Uhen]
11876 R. E. Fordyce. 1994. Waipatia maerewhenua, new genus and new species, Waipatiidae, new family, an archaic late Oligocene dolphin (Cetacea: Odontoceti: Platanistoidea) from New Zealand. In A. Berta and T. Demere (eds.), Proceedings of the San Diego Society of Natural History 29:147-176 [M. Uhen/M. Uhen/M. Uhen]
72000 F. G. Marx, E. M. G. Fitzgerald, and R. E. Fordyce. 2019. Like phoenix from the ashes: How modern baleen whales arose from a fossil “dark age”. Acta Palaeontologica Polonica 64(2):231-238 [M. Uhen/M. Uhen/M. Uhen]
70435 P. A. Maxwell. 1978. Taxonomic and nomenclatural notes on some New Zealand Cenozoic Mollusca, with descriptions of new taxa. New Zealand Journal of Zoology 5(1):15-46 [M. Uhen/M. Uhen]
52907 Y. Tanaka and R. E. Fordyce. 2014. Fossil dolphin Otekaikea marplesi (Latest Oligocene, New Zealand) expands the morphological and taxonomic diversity of Oligocene cetaceans. PLoS One 9(9):e107972 [M. Uhen/M. Uhen]