W16/f7581, Waimana Valley (Cretaceous of New Zealand)

Also known as N78/f581; GS10896

Where: New Zealand (38.2° S, 177.1° E: paleocoordinates 80.9° S, 179.0° 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• coordinate based on unpublished field data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 60-70 m above base of formation.

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, coarse-grained sandstone

• ENVIRONMENT: Shallow marine, inner shelf paleoenvironment.
• SPECIFIC LITHOLOGY: Cross-bedded coarse sand. LITHIFICATION: Lithified, based on facies description.

Size class: macrofossils

Preservation: cast, mold/impression

Collected by Gair et al in 1966; reposited in the IGNS

Collection methods: surface (in situ),

• COLLECTOR: H.S. Gair, Johnston, M.R., and Speden, I.G., 1966. 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 83426: 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.
Gastropoda
 Basommatophora - Siphonariidae
Anisomyon sp. Meek and Hayden 1860 pulmonate
Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
 Trigoniida - Trigoniidae
"Iotrigonia sp." = Megatrigonia (Iotrigonia) Van Hoepen 1929 clam
 Cardiida - Trapezidae
? Trapezium sp. Mühlfeld 1811 clam
 Cardiida - Psammobiidae
? Gari sp. Schumacher 1817 clam
 Mytilida - Mytilidae
? Eyrena sp. Ludbrook 1966 mussel
Brachidontes sp. Swainson 1840 mussel
 Arcida - Arcidae
Arca sp. Linnaeus 1758 ark
 Arcida - Limopsidae
? Limopsis sp. Sassi 1827 clam
 Myalinida - Inoceramidae
"Inoceramus cf. neocomiensis" = Neocomiceramus neocomiensis
"Inoceramus cf. neocomiensis" = Neocomiceramus neocomiensis d'Orbigny 1845 clam
 Pectinida - Oxytomidae
 Pectinida - Limidae
? Pseudolimea sp. Douglas and Arkell 1932 file clam
 Pectinida - Pectinoidae
Camptonectes sp. Meek 1864 scallop
Rhynchonellata
 Rhynchonellida - Basiliolidae
? Orbirhynchia sp. Pettitt 1954
Polychaeta
 Sabellida - Serpulidae