The Marree Subgroup, previously described as Maree Formation and Marree Formation, is a geological subgroup in the Eromanga Basin of South Australia whose strata date back to the Aptian. The subgroup was first described as a formation by Forbes in 1966.1988 - Tanh Van Doan - Sedimentology and mineralogy of some Jurassic-Cretaceous sediments of the southern Eromanga Basin - MSc. thesis Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Cretaceous, Australasia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 573-574. .
An opalised plesiosaur specimen of the genus Umoonasaurus has been nicknamed 'Eric' and was described in 1998 by Schroeder.1999 - Recent developments in Australasian sauropterygian palaeontology (Reptilia: Sauropterygia) - Records of the Western Australian Museum Supplement No. 57: 201-205 The decapod crab Dioratiopus salebrosus was described in 1980.Wooldridge Creek, Alberga River at Fossilworks.org
Vertebrate paleofauna Indeterminate theropod remains present in Western Australia.
Dinosaurs
Dinosaurs of the Marree Subgroup Genus Species Presence Notes ImagesKakuruK. kujaniGeographically present in Western Australia, Australia."Hindlimb.""Table 4.1," in Weishampel, et al. (2004). Page 76. Sauropterygians Sauropterygians of the Marree Subgroup Genus Species Presence Notes ImagesUmoonasaurusU. demoscyllusBulldog Shale of northern South Australia.Known from an opalized skeleton nicknamed 'Eric'.
See also List of dinosaur-bearing rock formations
References
Further reading Schroeder, N. (1998). A review of order Pliosauria, and the description of a new, opalised pliosauroid, from the Early Cretaceous of Coober Pedy, South Australia. M.Sc. thesis, Monash University, Clayton, Victoria M. F. Glaessner. 1980. New Cretaceous and Tertiary crabs (Crustacea: Brachyura) from Australia and New Zealand. Transactions of the Royal Society of South Australia 104(6):171-192