Where: Chubut, Argentina (42.5° S, 70.0° W: paleocoordinates 45.0° S, 60.0° W)

• coordinate stated in text

When: Ypresian (56.0 - 47.8 Ma)

• middle Chubut River volcanic-pyroclastic complex. Ar-Ar dates between 52.84 and 51.91 Ma in Wilf et al. (2005), assigned to magnetic chron C23n.2r, C23n.2n, and C23n.1r.

Environment/lithology: crater lake; lithified tuff

Size class: macrofossils

Preservation: adpression

Collection methods: Museo Paleontológico Egidio Feruglio collection

Primary reference: J. F. Petrulevičius and A. Nel. 2005. Austroperilestidae, a new family of damselflies from early Eocene of Argentina (Insecta: Odonata). Phylogenetic relationships within Odonata. Journal of Paleontology 79(4):658-662 [M. Uhen/M. Uhen/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 75178: authorized by Mark Uhen, entered by Mark Uhen on 25.09.2007, edited by Matthew Clapham and John Alroy

Creative Commons license: CC BY (attribution)