J40/f90 - McCulloch's Bridge [Ashley Mudstone] (Eocene of New Zealand)

Where: Canterbury, New Zealand (44.8° S, 171.0° E: paleocoordinates 52.1° S, 169.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ashley Mudstone Formation, Late/Upper Eocene (37.2 - 33.9 Ma)

• Lower Ashley Mudstone formation. Kaiatan in age (Late Eocene). Lower 2.5 m of Ashley Mudstone.

• group of beds-level stratigraphic resolution

Environment/lithology: deep-water; poorly lithified, bioturbated, gray, silty, calcareous mudstone

• Offshore lower shelf to slope environments, 150-250 m based on autoecological analyses.
• Pale, grey, bioturbated, calcareous, silty mudstone with sparse macrofossils.

Size class: mesofossils

Collection methods: bulk, sieve,

• REPOSITORY: Otago University (OU). COLLECTOR: Unknown.

Primary reference: M. A. Ayress. 1995. Late Eocene Ostracoda (Crustacea) from the Waihao District, South Canterbury, New Zealand. Journal of Paleontology 69(5):897-921 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 161903: authorized by Austin Hendy, entered by Austin Hendy on 15.09.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for Ostracoda; other taxa (e.g., bivalves, gastropods) known to be present. NOMENCLATURE: An authoritative publication, with modern nomenclature, and species-resolution identifications.
 Podocopida -
 Podocopida - Pontocyprididae
 Podocopida - Paracyprididae
 Podocopida -
Saida limbata ostracod
 Podocopida - Pectocytheridae
Munseyella pseudobrevis n. sp. Ayress 1995 ostracod
 Podocopida - Thaerocytheridae
 Podocopida - Xestoleberididae
Xestoleberis chilensis ostracod
SUBSPECIES: Xestoleberis chilensis austrocontinentalis
Xestoleberis sp. Sars 1866 ostracod
 Podocopida - Hemicytheridae
Patagonacythere waihaoensis n. sp. Ayress 1995 ostracod
Patagonacythere parvitenuis Hornibrook 1953 ostracod
 Podocopida - Cytheridae
Microcytherura "sp. 1" Muller 1894 ostracod
Microcytherura "sp. 2" Muller 1894 ostracod
 Podocopida - Loxoconchidae
 Podocopida - Neocytherideidae
Copytus pseudoelongatus n. sp. Ayress 1995 ostracod
Neocytherideis reticulata n. sp. Ayress 1995 ostracod
 Podocopida - Krithidae
Krithe sp. Brady et al. 1874 ostracod
 Podocopida - Cytheruridae
 Podocopida - Trachyleberididae
Pennyella leptodictyota n. sp. Ayress 1995 ostracod
Taracythere hampdenensis Ayress 1993 ostracod
Taracythere proterva Hornibrook 1953 ostracod
Taracythere conjunctispinosa n. sp. Ayress 1995 ostracod
Actinocythereis microagrenon n. sp. Ayress 1995 ostracod
 Podocopida - Cytherideidae
Pseudeucythere biplane n. sp. ostracod
Eucythere sp. Brady 1868 ostracod
Eucythere sulcocostatula Ayress 1995 ostracod
 Podocopida -
 Podocopida - Bythocyprididae
 Podocopida -
 Platycopida - Cytherellidae