GS950 - Parson's Creek [Rifle Butts Fm]: Altonian, New Zealand

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Epitoniidae
Cirsotrema cf. lyratum
Gastropoda - Neogastropoda - Pseudomelatomidae
Comitas fusiformis
Gastropoda - Neogastropoda - Volutidae
Spinomelon parki
Gastropoda - Cassidae
Galeodea apodemetes
Gastropoda - Naticidae
Globisinum miocenicum
Tanea socia
Bivalvia - Pectinida - Limidae
Lima colorata Hutton 1873
Bivalvia - Cardiida - Veneridae
Notocallista (Fossacallista) parki
original and current combination Fossacallista
Bivalvia - Carditida - Carditidae
Venericardia awamoensis
Bivalvia - Nuculanida - Malletiidae
Neilo awamoana
see common names

Geography
Country:New Zealand County:Waitaki
Coordinates: 45.1° South, 170.9° East (view map)
Paleocoordinates:49.9° South, 178.4° West
Basis of coordinate:based on nearby landmark
Geographic resolution:local area
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 5
Key time interval:Altonian
Age range of interval:19.00000 - 15.90000 m.y. ago
Stratigraphy
Geological group:Kaierero Formation:Rifle Butts
Stratigraphic resolution:group of beds
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Rifle Butts Fm, which gradationally overlies the Gee Greensand of the Kaierero Group, and is overlain by the Kurow Group. AGE: Hutchisonian-Awamoan in text of Gage (1957); late Altonian = Burdigalian-earliest Langhian; hereby assigned to the Altonian. STRATIGRAPHIC POSITION: Unknown position within the unit.
Lithology and environment
Primary lithology:glauconitic,shelly/skeletal,gray,green poorly lithified sandy claystone
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: "Sandy clays"; fine, glauconitic, greenish-grey sandstone containing brachiopods and molluscs grading up to a fine silt or mudstone. Concretionary bands and layers of tabular concretions indicate bedding in otherwise unstratified sediment. Fossils are disseminated through the silt, and also entombed in concretions and concentrated in shell-limestone lenses. LITHIFICATION: Poorly lithified, largely assumed, as no indication is given text of lithification state, except that concretionary layers are contrasted with the background lithology.
Environment:coastal indet.
Glacial or sequence phase:transgressive
Geology comments: ENVIRONMENT: Shallow marine, siliciclastic. Increasingly rapid accumulation of sediment in deepening water.
Taphonomy
Modes of preservation:body,concretion
Degree of concentration:concentrated
Size of fossils:macrofossils
Abundance in sediment:common
Collection methods and comments
Collection methods:selective quarrying,field collection
Reason for describing collection:biostratigraphic analysis
Museum repositories:IGNS
Collection method comments: COLLECTOR: Collected by Park (1915-1916). REPOSITORY: New Zealand Geological Survey (now GNS Science, Lower Hutt, New Zealand).
Taxonomic list comments:COVERAGE: Exhaustive for bivalvia, gastropoda, and polyplacophora. IDENTIFIER: Identifications compiled from previously published accounts and reassessments of NZGS collections, by various paleontologists. NOMENCLATURE: Somewhat antiquated but identified by specialist and often to subgeneric and species resolution.
Metadata
Database number:67911
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2006-12-15 08:18:35 Last modified:2017-05-23 16:34:15
Access level:group members Released:2007-12-15 08:18:35
Creative Commons license:CC BY
Reference information

Primary reference:

18671. M. Gage. 1957. The Geology of the Waitaki Subdivision. New Zealand Geological Survey Bulletin 55 [A. Hendy/A. Hendy]