W16/f7543, Waimana Valley (Cretaceous of New Zealand)

Also known as N78/f543; GS10791

Where: New Zealand (38.2° S, 177.1° E: paleocoordinates 80.9° S, 179.1° E)

• coordinate based on unpublished field data

• outcrop-level geographic resolution

When: Aptian (125.0 - 113.0 Ma)

• STRATIGRAPHIC RELATIONS: From unnamed lithostratigraphic unit, which unconformably overlies the Torlesse Supergroup. AGE: Korangan-Urutawan, on the basis of macrofossil biostratigraphy. Here placed in Korangan = Aptian based on its stratigraphic position. STRATIGRAPHIC POSITION: From 40 m above base of formation.

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, pebbly siltstone

• ENVIRONMENT: Shallow marine, inner shelf paleoenvironment.
• SPECIFIC LITHOLOGY: Pebbly silt. LITHIFICATION: Lithified, based on facies description.

Size class: macrofossils

Preservation: cast, mold/impression

Collected by Speden in 1970; reposited in the IGNS

Collection methods: surface (float),

• COLLECTOR: I. G. Speden, 1970. REPOSITORY: GSNZ (now GNS Science, Lower Hutt, New Zealand).

Primary reference: I.G. Speden. 1975. Cretaceous stratigraphy of Raukumara Peninsula. New Zealand Geological Survey Bulletin 91 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 83424: authorized by Austin Hendy, entered by Austin Hendy on 20.08.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for bivalvia, and other invertebrate groups (cephalopoda, gastropoda, echinoidea, bryozoa, annelida listed). NOMENCLATURE: Not an authoritative publication, and generally lacking species-level designations. Identified by specialist (Speden), and lack of species names reflects poor preservation and insufficient existing taxonomic knowledge.
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805
Bryozoa
  -
? Bryozoa indet. Ehrenberg 1831
Listed as "Polyzoa indet."
Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
 Pectinida - Pectinoidae
Camptonectes sp. Meek 1864 scallop
 Pectinida - Oxytomidae
 Pectinida - Limidae
Acesta sp. Adams and Adams 1858 file clam
 Carditida - Astartidae
Astarte sp. Sowerby 1816 clam
 Pholadida - Pleuromyidae
? Pleuromya sp. Meek 1873 clam
 Trigoniida - Trigoniidae
"Iotrigonia sp." = Megatrigonia (Iotrigonia)
"Iotrigonia sp." = Megatrigonia (Iotrigonia) Van Hoepen 1929 clam
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758 tusk shell
Polychaeta
 Sabellida - Serpulidae