Dominican amber, El Valle locality (Poinar collection) (Miocene to of Dominican Republic)

Where: Dominican Republic (19.0° N, 69.5° W: paleocoordinates 18.8° N, 68.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Yanigua Formation, Burdigalian to Burdigalian (20.4 - 13.8 Ma)

• Older dates for Dominican amber were Upper Eocene or Oligocene, but it is now dated as Miocene.

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; amber

Size classes: macrofossils, mesofossils

Preservation: soft parts, original chitin, amber

Collection methods: Repository: collection of George Poinar at Oregon State University, Corvallis

Primary reference: W. Mohrig and F. Röschmann. 2005. Sciarid flies from Dominican amber (Diptera, Sciaridae). Beiträge zur Entomologie 55:319-361 [M. Clapham/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 155411: authorized by Matthew Clapham, entered by Matthew Clapham on 11.04.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Hemiptera - Gerridae
Electrobates spinipes n. gen. n. sp.
Electrobates spinipes n. gen. n. sp. Andersen and Poinar 1992 water strider
 Diptera - Sciaridae
Archicratyna arcana n. sp. Mohrig and Röschmann 2005 dark-winged fungus gnat
D-A-Sci.17