D Site (Oligocene of Australia)

Also known as Riversleigh; Low Lion Site

Where: Queensland, Australia (19.1° S, 138.7° E: paleocoordinates 34.0° S, 133.4° E)

• coordinate based on nearby landmark

When: Faunal Zone A zone, Carl Creek Limestone Formation, Chattian (28.1 - 23.0 Ma)

• The Etadunna Fm. is a South Australian stratigraphic equivalent of the "System A"-aged deposits of Riversleigh, hence the entry >>?Etadunna<< is replaced by >>Carl Creek Limestone<< (TL).

•Megirian et al. 2010: The oldest age estimate for an Etadunnan assemblage is derived from the magnetic polarity of Etadunna Formation faunal zone A at Lake Palankarinna, northern South Australia. This has been referred to magnetic polarity chrons 7An and 7Ar (Woodburne et al. 1994), which has an age of 25.3–24.9 Ma (Gradstein et al. 2005, Table 5.2). The Carl Creek Limestone produces distinctly Wipajirian and distinctly Camfieldian assemblages plus a suite of species that apparently ranged locally across the Wipajirian/Camfieldian boundary (Wipajirian–Camfieldian estimated to span ~24.9–12 Ma).

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; limestone

Size class: macrofossils

Collection methods: Queensland Museum collection (QMF)

•University of New South Wales (AR)

Primary reference: P. M. A. Willis. 1997. New crocodilians from the late Oligocene White Hunter Site, Riversleigh, northwestern Queensland. Memoirs of the Queensland Museum 41(2):423-438 [P. Mannion/P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 143470: authorized by Philip Mannion, entered by Philip Mannion on 23.04.2013, edited by Torsten Liebrecht

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Crocodylia -
Ultrastenos willisi n. gen. n. sp.2, Baru darrowi3, Baru wickeni n. sp.
Ultrastenos willisi n. gen. n. sp.2 Stein et al. 2016 crocodilian
QM F42665 - holotype; paratypes: QM F42666-42673
Baru darrowi3 Willis et al. 1990 crocodilian
NTM P8778 (partial skull), NTM P8681 (mandible), NTM P8738-1 (partial skull), QM F16823 (jugal), QM F16824 (premaxillary fragments) and QM F16825 and F16826 (two right dentaries)
Baru wickeni n. sp. Willis 1997 crocodilian
QM F16822 - type (rostral region of skull and associated postcrania); paratypes QMF and NTM specimens
 Squamata - Pythonidae
"Montypythonoides riversleighensis" = Morelia riversleighensis1
"Montypythonoides riversleighensis" = Morelia riversleighensis1 Smith and Plane 1985 python
AR 3190 (a single vertebra, listed as paratype by Scanlon, 2001)