GS 7377 - Aorere Group, Lodestone Peak (Ordovician of New Zealand)

Where: New Zealand (41.1° S, 172.6° E: paleocoordinates 12.0° N, 171.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Peel Formation (Golden Bay Group), Gisbornian (458.4 - 452.7 Ma)

• LITHOSTRATIGRAPHY: Upper Aorere Series=group of Henderson et al. (1959). AGE: Lower Gisbornian. Cooper (1971) notes that this is now the Peel Formation, which overlies the Douglas formation (PJW).

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified shale and lithified sandstone

• ENVIRONMENT: Environmental data not reported in text.
• SPECIFIC LITHOLOGY: Interbeded slates, quartzites, and sandstones. LITHIFICATION: Assumed to be lithified as rocky types are slightly metamorphosed (e.g. slates).

Size class: macrofossils

Reposited in the IGNS

• COLLECTOR: S.K. Swarko (1958). REPOSITORY: New Zealand Geological Survey (now GNS Science), Lower Hutt, New Zealand.

Primary reference: S. K. Skwarko. 1962. Graptolites of Cobb River-Mount Arthur Area, North-West Nelson, New Zealand. Transactions of the Royal Society of New Zealand 1(15):215-247 [A. Miller/A. Hendy/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 63969: authorized by Austin Hendy, entered by Austin Hendy on 28.08.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• COMPLETENESS: Exhaustive for graptolites, trilobites and hydroids. NOMENCLATURE: Probably somewhat outdated, but from an authoritative publication and identified by a specialist.
Show authors, comments, and common names
unclassified
  -
Leptograptidae indet.
Pterobranchia
 Graptoloidea - Dichograptidae
Dichograptidae indet., "Azygograptus cf. fasciculatus" = Nicholsonograptus fasciculatus
Dichograptidae indet. Lapworth 1873 graptolite
"Azygograptus cf. fasciculatus" = Nicholsonograptus fasciculatus Nicholson 1869 graptolite
 Graptoloidea - Retiolitidae
Glyptograptus sp.
Glyptograptus sp. Lapworth 1873 graptolite
 Graptoloidea - Diplograptidae
Amplexograptus cf. confertus, Diplograptus cf. spiculatus, Diplograptus sp.
Diplograptus sp. graptolite
 Graptoloidea - Dicranograptidae
Dicellograptus sp., Dicellograptus sextans
Dicellograptus sp. Hopkinson 1871 graptolite
Dicellograptus sextans Hall 1843 graptolite
Subspecies: Dicellograptus cf. sextans exilis