QMF L78 (Rewan Formation) (Triassic of Australia)

Also known as "The Crater", QML 78

Where: Queensland, Australia (24.8° S, 148.0° E: paleocoordinates 58.0° S, 136.0° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Arcadia Formation (Rewan Group), Induan (252.2 - 251.2 Ma)

• Warren et al. (2006) argued that the Arcadia Formation is likely earliest Triassic in age based upon SHRIMP, U/Pb and microflora evidence that the conformably underlying Sagittarius Sandstone of the Rewan Group is largely Permian in age.

•"Lower beds of the upper part of the Rewan Formation of the Mimosa Group [...] Howie (1972) has fully discussed the geological provenance and the reasons for assigning an Early Triassic age to the level from which the material is drawn." (Bartholomai, 1979)

•"Lower Arcadia Formation, Rewan Group, Early Triassic (Scythian A1 of Cosgriff, 1984). Age of fauna equivalent to Lystrosaurus Zone of southern Africa." (Warren & Hutchinson, 1990).

•Notes: The term "Mimosa Group" is obsolete and the former Rewan Formation was reranked to group status. Consequently, the original lithostratigraphic entries of this collection (which were following Bartholomai, 1979) have been changed (TL).

•According to Veevers et al. (1994, in Veevers & McA. Powell (eds.), GSA Mem. 184) the Arcadia Fm. constitutes the upper part of the Rewan Group. Hence, stratigraphic descriptions by Bartholomai (1979) and Warren & Hutchinson (1990) appear to refer approximately to the same stratigraphic level.

• member-level stratigraphic resolution

Environment/lithology: fluvial; ferruginous, sandy mudstone and nodular ironstone

Size class: macrofossils

Preservation: concretion

Collection methods: QMF = fossil collections of the Queensland Museum, Brisbane

Primary reference: A. Bartholomai. 1979. New lizard-like reptiles from the Early Triassic of Queensland. Alcheringa 3(3):225-234 [J. Mueller/T. Liebrecht/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 85560: authorized by Johannes Mueller, entered by Torsten Liebrecht on 08.01.2009, edited by Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Dipnoi -
Dipnoi indet. lungfish
 Temnospondyli - Plagiosauridae
Plagiobatrachus australis n. gen. n. sp.6
Plagiobatrachus australis n. gen. n. sp.6 Warren 1985 tetrapod
QM F12267 (holotype), centrum. QM F12268, 12269, 12270
 Temnospondyli - Trematosauridae
Trematosauridae indet.5 Watson 1919 tetrapod
QM F12272
 Temnospondyli -
"Parotosuchus rewanensis n. sp." = Watsonisuchus rewanensis4, "Parotosuchus gunganj n. sp." = Watsonisuchus gunganj4
"Parotosuchus rewanensis n. sp." = Watsonisuchus rewanensis4 Warren 1980 tetrapod
QM F6571 (holotype), complete skull
"Parotosuchus gunganj n. sp." = Watsonisuchus gunganj4 Warren 1980 tetrapod
QM F10114 (holotype), skull. AM F60227
 Temnospondyli - Lapillopsidae
Lapillopsis nana n. gen. n. sp.8
Lapillopsis nana n. gen. n. sp.8 Warren and Hutchinson 1990 tetrapod
QM F12284 (holotype), 12285 (paratype), F12289, 14497, 14499, 14501-14503, 35385-35392
 Temnospondyli - Derwentiidae
Acerastea wadeae n. gen. n. sp.7, Rewana quadricuneata n. gen. n. sp.2
Acerastea wadeae n. gen. n. sp.7 Warren and Hutchinson 1987 tetrapod
QM F12277, partial skull and postcranial skeleton (holotype)
Rewana quadricuneata n. gen. n. sp.2 Howie 1972 tetrapod
QM F 6471, incomplete skull and postcranium. AMF 54126, fragmentary skull with associated vertebrae and ribs
Reptilia
 Procolophonia - Procolophonidae
Procolophonidae indet. Lydekker 1889 parareptile
 Eosuchia - Prolacertidae
Kadimakara australiensis n. gen. n. sp.
Kadimakara australiensis n. gen. n. sp. Bartholomai 1979 archosauromorph
QM F6676, 6710 (type)
 Eosuchia -
Kalisuchus rewanensis n. gen. n. sp.3, Kudnu mackinlayi n. gen. n. sp.
Kalisuchus rewanensis n. gen. n. sp.3 Thulborn 1979 archosauromorph
QM F8998, maxilla (holotype), other isolated cranial and postcranial specimens
Kudnu mackinlayi n. gen. n. sp. Bartholomai 1979 crown diapsid
QM F9181 (type), 9182
Osteichthyes
 Therapsida -
Dicynodontia indet.1 Owen 1859 dicynodont
QM F12178, left quadrate