RSO Site (Miocene of Australia)

Also known as Riversleigh

Where: Queensland, Australia (19.1° S, 138.7° E: paleocoordinates 30.8° S, 134.7° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Faunal Zone B zone, Early/Lower Miocene (23.0 - 16.0 Ma)

• "The mid-Tertiary sequence (late Oligocene to late Miocene) [at Riversleigh] is sometimes referred to collectively as the “Carl Creek Limestone” (Megirian, 1992), but others use this term in a more restricted sense (see Archer et al., 1997) noting the plethora of very different sediment types (most of which are distinguished palaeontologically and chronologically but unnamed) ranging from lacustrine to fluviatile, karstic and fissure deposits." (Scanlon, 2003)

•The RSO Site is considered to be the oldest within the Faunal Zone B (latest Oligocene or, more likely, Early Miocene) (Scanlon, 2003)

Environment/lithology: terrestrial; limestone

• "freshwater limestone"

Size classes: macrofossils, mesofossils

Collected by M. Archer et al. (University of New South Wales)

Collection methods: acetic

• "All of the fossil [snake] material [...] has been collected and prepared by a team at the University of New South Wales led by M. Archer, and including H. Godthelp, S.J. Hand, postgraduate students, and volunteers. All Riversleigh material has been or will be housed in the Queensland Museum palaeontological collection (QM F). The fossils [...] are prepared using acetic acid [...]" (Scanlon, 2003)

Primary reference: J. D. Scanlon, M. S. Y. Lee, and M. Archer. 2003. Mid-Tertiary elapid snakes (Squamata, Colubroidea) from Riversleigh, northern Australia: early steps in a continent-wide adaptive radiation. Geobios 36(5):573-601 [J. Mueller/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 136804: authorized by John Alroy, entered by Albert Garcia Selles on 04.12.2012, edited by Torsten Liebrecht

Creative Commons license: CC BY (attribution)

Taxonomic list

 Squamata - Colubridae
"Elapidae indet." = Elapinae
"Elapidae indet." = Elapinae Boié 1827 colubrid snake
a single vertebra (QM F42690), referred to as "Elapidae incertae sedis (Laticauda sp.?)"