N88/f518 - Koranga Sandstone, Maccoyella Ridge (Cretaceous of New Zealand)

Also known as GS5790

Where: New Zealand (38.4° S, 177.3° E: paleocoordinates 80.3° S, 177.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Koranga Sandstone Formation, Late/Upper Aptian (122.5 - 113.0 Ma)

• STRATIGRAPHIC RELATIONS: From Koranga Sandstone of the Taitai Series, overlies Torelsse supergroup along Maccoyella Ridge and is unconformably overlain by the the Te Wera Sandstone. THICKNESS: From bed within formation that varies in thickness between 116 (at this area) and 76 m (locally). AGE: Korangan of Wellman (1956) = Upper Aptian based on presence in unit of Aucellina radiatostriata and Maccoyella reflecta (Day 1969, Day and Speden 1970). STRATIGRAPHIC POSITION: From 40 ft above base of unit.

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, fine-grained, pebbly sandstone

• ENVIRONMENT: Accumulated in shallow-water, high-energy environment.
• SPECIFIC LITHOLOGY: Moderately hard, non-calcareous pebbly fine sand. LITHIFICATION: Lithified, based on facies description.

Size class: macrofossils

Reposited in the IGNS

Collection methods: quarrying,

• COLLECTOR: I.G. Speden. 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 65630: authorized by Austin Hendy, entered by Austin Hendy on 23.09.2006

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.
Bivalvia
 Mytilida - Mytilidae
Modiolus sp. Lamarck 1801 mussel
 Arcida - Arcidae
Arca sp. Linnaeus 1758 ark
 Pectinida - Limidae
Acesta sp. Adams and Adams 1858 file clam
Pseudolimea "n. sp. A" Douglas and Arkell 1932 file clam
 Pectinida - Oxytomidae
 Pectinida - Buchiidae
Aucellina cf. radiatostriata Bonarelli and Nagera 1921 scallop
 Pectinida - Pectinoidae
Spondylus sp. Linnaeus 1758 scallop
Camptonectes sp. Meek 1864 scallop
 Pectinida - Neitheoidae
? Neithea sp. Drouet 1824 scallop
 Trigoniida - Trigoniidae
 Cardiida - Veneridae
? Callista sp. Poli 1791 venus clam
 Pholadida - Pleuromyidae
Pleuromya sp. Meek 1873 clam
 Pholadida - Pholadidae
? Martesia sp. Sowerby 1824 clam
 Carditida - Astartidae
Astarte sp. Sowerby 1816 clam
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
Sedentaria
 Sabellida - Serpulidae
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805