Also known as Domeykodactylus holotype site

Where: Antofagasta, Chile (25.3° S, 69.2° W: paleocoordinates 25.5° S, 35.9° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Santa Ana Formation, Early/Lower Cretaceous (145.0 - 100.5 Ma)

• "The age of the outcrop yielding the specimen cannot be determined with precision, due to a lack of diagnostic fossils, but there are arguments suggesting a Late Jurassic to Early Cretaceous age. Marls with concretions at the base of the sequence here are correlated with similar lithologies of Oxfordian age in nearby exposures. An overlying horizon yields abundant fishes, and a sandstone yields remains of the plant Brachyphyllum. Specimens of Williamsonia have been obtained from above the arkoses. Nearby, outcrops of red sandstones overlie marine sediments that yield the bivalves Megatrigonia and Pterotrigonia, which are of Lower Cretaceous age. Thus an Early Cretaceous age is considered more likely than a Late Jurassic one."

Environment/lithology: coastal; lithified, carbonaceous sandstone

Size class: macrofossils

Collected by G. C. Diaz

Primary reference: G. Chong Diaz and Z. B. d. Gasparini. 1976. Los vertebrados mesozoicos de Chile y su aporte geo-paleontologico [The Mesozoic vertebrates of Chile and their geo-paleontological importance]. Actas del Sexto Congreso Geologico Argentino, Bahia Blanca, 21-27 September 1975 45-67 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 92228: authorized by Richard Butler, entered by Richard Butler on 03.11.2009, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)