S136/f497 - Rifle Butts Fm, Rifle Butts (Miocene of New Zealand)

Also known as GS958, GS2218; Coll# 3084 (Hendy PhD)

Where: New Zealand (45.1° S, 170.9° E: paleocoordinates 49.9° S, 178.4° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Rifle Butts Formation (Kaierero Group), Altonian (19.0 - 15.9 Ma)

• 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: Lower part of the formation.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified, fine-grained, glauconitic, shelly/skeletal, gray, green sandstone

• ENVIRONMENT: Shallow marine, siliciclastic. Increasingly rapid accumulation of sediment in deepening water.
• SPECIFIC LITHOLOGY: 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.

Size class: macrofossils

Preservation: concretion

Reposited in the IGNS

Collection methods: quarrying,

• COLLECTOR: Collected by Park (1915-1916) and Marwick (1925). REPOSITORY: New Zealand Geological Survey (now GNS Science, Lower Hutt, New Zealand).

Primary reference: M. Gage. 1957. The Geology of the Waitaki Subdivision. New Zealand Geological Survey Bulletin 55 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 67898: authorized by Austin Hendy, entered by Austin Hendy on 14.12.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• 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.
Show authors, comments, and common names
Gastropoda
 Sorbeoconcha - Naticidae
"Polinella modesta" = Polinices (Polinella), "Polinella "n. sp."" = Polinices (Polinella), Uberella pseudovitreus, Globisinum miocenicum, Friginatica vaughani, Magnatica "n. sp.", Tanea socia, Taniella notocenica
"Polinella modesta" = Polinices (Polinella) moon snail
"Polinella "n. sp."" = Polinices (Polinella) Marwick 1931 moon snail
Magnatica "n. sp." Marwick 1924 moon snail
Tanea socia moon snail
 Sorbeoconcha - Ficidae
Ficus parvus
Ficus parvus fig shell
 Neogastropoda - Ancillariidae
"Baryspira gigartoides" = Amalda (Baryspira)
"Baryspira gigartoides" = Amalda (Baryspira) snail
 Neogastropoda - Columbellidae
Zemitrella haroldi
 Neogastropoda - Nassariidae
"Hima (Mirua) socialis" = Nassarius (Hima)
"Hima (Mirua) socialis" = Nassarius (Hima) snail
 Neogastropoda - Fasciolariidae
Glaphyrina aff. excelsa
 Neogastropoda - Buccinidae
"Verconella marwicki" = Penion marwicki, Buccinulum (Evarnula) protensum, "Cominula (Procominula) pukeuriensis" = Cominella (Cominula), Egotistica "n. sp."
"Verconella marwicki" = Penion marwicki Finlay 1930 true whelk
"Cominula (Procominula) pukeuriensis" = Cominella (Cominula) true whelk
Egotistica "n. sp." Marwick 1934 true whelk
 Neogastropoda - Cancellariidae
Zeadmete miocenica, "Uxia naroniformis" = Unitas
"Uxia naroniformis" = Unitas snail
 Neogastropoda - Volutidae
Metamelon patruelis, Metamelon aff. minima, Alcithoe reflexa, Alcithoe (Leporemax) neglecta
 Neogastropoda - Marginellidae
Marginella harrisi, "Marginella (Glabella) conica" = Glabella, "Marginella (Glabella) fraudulenta" = Glabella
Marginella harrisi margin shell
"Marginella (Glabella) conica" = Glabella margin shell
"Marginella (Glabella) fraudulenta" = Glabella margin shell
 Neogastropoda - Volutomitridae
Proximitra apicalis, Proximitra tumens, "Parvimitra pukeuriensis" = Peculator (Parvimitra)
"Parvimitra pukeuriensis" = Peculator (Parvimitra) snail
 Neogastropoda - Drilliidae
Pseudoinquisitor problematicus
 Neogastropoda - Mangeliidae
Neoguraleus sp.
Neoguraleus sp. Powell 1939 snail
 Neogastropoda - Horaiclavidae
Mauidrillia supralaevis, Mauidrillia praecophinoides
 Neogastropoda - Raphitomidae
Rugobela caniculata
 Neogastropoda - Conidae
Marshallaria senta
 Neogastropoda - Turridae
Parasyrinx alta
 Neogastropoda - Pseudomelatomidae
Comitas fusiformis
 Sorbeoconcha - Cassidae
Galeodea apodemetes
 Sorbeoconcha - Ranellidae
"Austrosassia maoria" = Sassia
"Austrosassia maoria" = Sassia triton shell
 Sorbeoconcha - Struthiolariidae
Struthiolaria subspinosa
Struthiolaria subspinosa Marwick 1924 snail
 Neotaenioglossa - Calyptraeidae
Maoricrypta sp., Sigapatella sp.
Maoricrypta sp. Finlay 1926 slipper shell
Sigapatella sp. Lesson 1830 slipper shell
 Epitonioidea - Epitoniidae
Notacirsa cf. oamarutica
 Cerithioidea - Turritellidae
Pareora striolata, Zeacolpus sp., Zeacolpus abscisa, Zeacolpus pukeuriensis, Maoricolpus cavershamensis
Pareora striolata Hutton 1885 turret shell
Zeacolpus sp. Finlay 1926 turret shell
Zeacolpus abscisa turret shell
Zeacolpus pukeuriensis Marwick 1934 turret shell
 Heterostropha - Pyramidellidae
Turbonilla pukeuriensis, Pukeuria anaglypta, Odostomia obstinata, Eulimella larga
Pukeuria anaglypta Laws 1941 snail
Odostomia obstinata Laws 1939 snail
Bivalvia
 Carditida - Carditidae
Pleuromeris cf. prolutea, Venericardia awamoensis
Pleuromeris cf. prolutea Marwick 1929 clam
 Carditida - Crassatellidae
Spissatella trailli
Spissatella trailli Hutton 1873 clam
 Lucinida - Lucinidae
Myrtea valdescripta
 Cardiida - Neoleptonidae
"Notolepton "n. sp."" = Neolepton
"Notolepton "n. sp."" = Neolepton Monterosato 1875 clam
 Cardiida - Tellinidae
"Tellinella aff. eugonia" = Tellina (Tellinella)
"Tellinella aff. eugonia" = Tellina (Tellinella) tellin clam
 Cardiida - Erycinidae
Semeloidea miocenica
 Cardiida - Veneridae
"Notocallista (Fossacallista) parki" = Fossacallista, Marama ovata, Kuia vellicata
"Notocallista (Fossacallista) parki" = Fossacallista venus clam
Marama ovata Marwick 1927 venus clam
Kuia vellicata venus clam
 Cardiida - Mactridae
Zenatia aff. acinaces
 Pholadida - Corbulidae
Notocorbula humerosa
Notocorbula humerosa Hutton 1885 clam
 Pectinida - Pectinoidae
Serripecten cf. enfieldensis, Serripecten hutchinsoni, Lentipecten hochstetteri
Serripecten cf. enfieldensis Marwick 1926 scallop
Serripecten hutchinsoni Hutton 1873 scallop
Lentipecten hochstetteri Zittel 1864 scallop
 Pectinida - Limidae
Lima colorata
Lima colorata Hutton 1873 file clam
 Pectinida - Anomiidae
Anomia cf. trigonopsis
Anomia cf. trigonopsis Hutton 1873 jingle
 Arcida - Limopsidae
Limopsis "n. sp."
Limopsis "n. sp." Sassi 1827 clam
 Nuculida - Nuculidae
Nucula (Linucula) "n. sp."
Nucula (Linucula) "n. sp." Marwick 1931 nut clam
 Nuculanida - Malletiidae
Neilo awamoana