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Manuherikia River site, Saint Bathans, Home Hills Station, HH1a (Miocene of New Zealand)

Also known as H41/f88

Where: South Island, New Zealand (44.9° S, 169.9° E: paleocoordinates 49.7° S, 179.5° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Casuarinaceae pollen zone, Bannockburn Formation (Manuherikia Group), Altonian (19.0 - 15.9 Ma)

• "Bed HH1a, a sand layer bound by clay layers, in the Manuherikia River section, 6.887.0 m above the base of the Bannockburn Formation, allocated H41/f88 in the archival Fossil Record File of the Geological Society of NZ"

•early to earliest middle Miocene (Altonian), 19-16 Ma, Casuarinacea biozone

• bed-level stratigraphic resolution

Environment/lithology: lacustrine - large; fine-grained, gray, green, silty sandstone and claystone

• from Miocene Lake Manuherikia, which extended > 5,600 square km
• "HH1a comprises a greenish grey silt or fine sand locally intermixed with quartz granules/pebbles and organic debris, incorporating algae encrusted rip-up clasts of mud, rare oncolite fragments and abundant bone fragments. The clay layer underlying HH1a is slightly humped and hollowed (5 cm) over its lateral extent. The fossiliferous sands deposited on this surface contain ripples, about 1012 cm between crests that indicate a current direction essentially down dip or parallel to the adjacent Manuherikia River. A result of this is that coarser material was deposited as lenses down-current of the humps on the lower clay layer."

Size classes: macrofossils, mesofossils

Preservation: original phosphate

Collection methods: quarrying, sieve,

• MNZ, Museum of NewZealand Te Papa Tongarewa

Primary reference: T. H. Worthy, A. J. D. Tennyson, M. Archer, A. M. Musser, S. J. Hand, C. Jones, B. J. Douglass, J. A. McNamara, and R. M. D. Beck. 2006. Miocene mammal reveals a Mesozoic ghost lineage on insular New Zealand, southwest Pacific. Proceedings of the National Academy of Sciences 103(51):19419-19423 [M. Uhen/M. Uhen] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 73690: authorized by Mark Uhen, entered by Mark Uhen on 26.06.2007, edited by Richard Butler and Collin VanBuren

Creative Commons license: CC BY (attribution)