Also known as Rairua Swamp
Where: Austral Islands, French Polynesia (23.9° S, 147.7° W: paleocoordinates 23.9° S, 147.7° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Holocene (0.0 - 0.0 Ma)
• Simuliids are restricted to depths of greater than 1.5 metres
• group of beds-level stratigraphic resolution
Environment/lithology: mire or swamp; unlithified peat
Size class: microfossils
Collected by Prebble, Porch in 2008
Collection methods: core,
• Repository: B. P. Bishop Museum, Honolulu, Hawai'i. Paratypes are also deposited there, as well as in the Australian National Insect Collection, CSIRO, Canberra, ACT, Australia.
•Subfossil head capsules were recovered from sediment cores from swamp sequences collected in 2008 (Austral) and 2009 (Cook). These cores were recovered using standard sampling techniques (D-Section or piston coring) and subsampled in the field into 5 cm (Raivavae, Atiu, Mangaia) or 10 cm (Tubuai) sections. Samples were returned to the laboratory where insects and plant macrofossil were recovered by washing the sediment with water through a 250 μm sieve and hand sorting the residues under a binocular microscope.
Primary reference: D. A. Craig and N. Porch. 2013. Subfossils of extinct and extant species of Simuliidae (Diptera) from Austral and Cook Islands (Polynesia): anthropogenic extirpation of an aquatic insect?. Zootaxa 3641:448-462 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 143887: authorized by Matthew Clapham, entered by Matthew Clapham on 27.04.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Insecta | |
Pycnomerus vavitu n. sp., Pycnomerus rairua n. sp., Pycnomerus raivavae, Pycnomerus taralewisae n. sp., Pycnomerus mahanatoa n. sp.
Pycnomerus raivavae Porch and Greig 2020 ironclad beetle 160-165 cm; 180-185 cm; 190-195 cm; 240-245 cm; elytra at 140-145 cm; 150-155 cm; 165-170 cm (2); 170-175 cm (2); 190-195 cm
Pycnomerus taralewisae n. sp. Porch and Greig 2020 ironclad beetle 245-250 cm depth; 225-230 cm depth
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Simulium (Inseliellum) raivavaense n. sp. Craig and Porch 2013 black fly |