O32/f9542 [Conway Siltstone] (Cretaceous of New Zealand)

Also known as S56/f542; GS10393

Where: New Zealand (42.6° S, 173.5° E: paleocoordinates 64.7° S, 144.1° W)

• coordinate based on unpublished field data

• outcrop-level geographic resolution

When: Conway Siltstone Formation, Piripauan (85.8 - 83.5 Ma)

• STRATIGRAPHIC RELATIONS: From the Conway Siltstone, which conformably overlies Tarapuhi Grit, and is conformably overlain by the Claverley Sandstone. AGE: Piripauan-Haumurian (=Coniacian-early Campanian), on the basis of macrofossil biostratigraphy. STRATIGRAPHIC POSITION: Loose boulders on beach.

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified siltstone

• ENVIRONMENT: Intertidal or directly subtidal environment along present day shorelines in moderate energy.
• SPECIFIC LITHOLOGY: Siltstone. LITHIFICATION: Lithified, based on facies description (FRED).

Size class: macrofossils

Preservation: cast, mold/impression

Collected by Simes et al in 1969; reposited in the IGNS

Collection methods: surface (float),

• COLLECTOR: J.E. Simes, I.G. Speden, G. Warren, 1969. REPOSITORY: GSNZ (now GNS Science, Lower Hutt, New Zealand).

Primary reference: G. Warren and I. Speden. 1977. The Piripauan and Haumurian stratotypes (Mata Series, Upper Cretaceous) and correlative sequences in the Haumuri Bluff District, South Marlborough. New Zealand Geological Survey Bulletin 92:1-60 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 83536: authorized by Austin Hendy, entered by Austin Hendy on 21.08.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for bivalvia, gastropoda, cephalopoda, and other invertebrate and vertebrate groups. NOMENCLATURE: Not an authoritative publication, but with relatively modern nomenclature and species-resolution identifications.
Lingulata
 Lingulida -
Linguloidea indet. Menke 1828
Cephalopoda
 Ammonitida - Kossmaticeratidae
Gunnarites zelandicus Marshall 1917 ammonite
Bivalvia
 Nuculanida - Nuculanidae
"? Nuculana (Jupiteria) amuriensis" = Jupiteria
"? Nuculana (Jupiteria) amuriensis" = Jupiteria pointed nut clam
 Hiatellida - Hiatellidae
? Panopea clausa Wilckens 1910 clam
 Pectinida - Pectinoidae
"Mixtipecten amuriensis" = Chlamys (Mixtipecten)
"Mixtipecten amuriensis" = Chlamys (Mixtipecten) scallop
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758 tusk shell
Gastropoda
 Neritoina - Neritopsidae
? Protodolium speighti Trechmann 1917 snail
 Sorbeoconcha - Aporrhaidae