Madden Airfield USGS 16889 (Eocene of Panama)

Where: Panama (9.0° N, 79.5° W: paleocoordinates 6.5° N, 77.2° W)

• coordinate based on nearby landmark

When: Late/Upper Eocene (37.2 - 33.9 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified lime mudstone

• The echinoids occur in limestone that comprises part of the late Eocene formation bearing the foraminiferal faunas recorded by Vaughan (1926) and Coryell and Embich (1937).

Size class: macrofossils

Collection methods: chemical,

• These specimens comprise the collection: USGS 16889. They were collected by T.F. Thompson (Chief Geologist of the Panama Canal), W.P. Woodring, and J.R. Schulz.

Primary reference: C. W. Cooke. 1948. Eocene Echinoids from Panama. Journal of Paleontology 22(1):91-93 [L. Ivany/C. Visaggi/C. Visaggi]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 42698: authorized by Linda Ivany, entered by Christy Visaggi on 04.08.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Echinoidea
 Clypeasteroida - Neolaganidae
"Peronella dalli" = Weisbordella dalli
"Peronella dalli" = Weisbordella dalli Clark and Twitchell 1915 sand dollar
 Clypeasteroida - Laganidae
Peronella acunai, Peronella cubae
Peronella acunai sand dollar
Peronella cubae Weisbord 1934 sand dollar
 Spatangoida - Schizasteridae
"Schizaster armiger" = Paraster armiger
"Schizaster armiger" = Paraster armiger Clark and Twitchell 1915 heart urchin
Euspatangus
  -
"Eupatagus clevei" = Euspatangus clevei
"Eupatagus clevei" = Euspatangus clevei Cotteau 1875