Woolungasaurus glendowerensis ('Glendower's Woolunga lizard', named after an Aboriginal mythical reptile, Persson 1960) is a plesiosaur, an extinct marine reptile, belonging to the Elasmosauridae.

The type species Woolungasaurus glendowerensis, named by Per Ove Persson in 1960,[1] is known from a partial skeleton, holotype QM F6890, (forty-six vertebrae, ribs, forearms, shoulder girdle and part of the rear limbs) unearthed from the Wallumbilla Formation (Albian, Lower Cretaceous) of the Richmond District, Queensland, Australia. The specific name refers to Glendower Station. Another find of undetermined species, consisting of twelve vertebrae, was unearthed from the Maree Formation (Cretaceous, of uncertain age) of Neales River, near Lake Eyre, South Australia. In addition a skull from Yamborra Creek, near Maxwelltown, Queensland, described by Persson in 1982 has been referred to Woolungasaurus.

Woolungasaurus appears to have been a typical elasmosaur, with forty sharp teeth and an estimated length of about 9.5 metres. Persson (1982) believes it to be closely related to the North American elasmosaur Hydralmosaurus.

Kronosaurus hunt1DB
Woolungasaurus attacked by Kronosaurus

The genus was referred to Styxosaurus by Sven Sachs in 2004.[2]

Temporal range: Early Cretaceous
Scientific classification

P.O. Persson 1960

W. glendowerensis

See also


  1. ^ Persson, P.O., 1960, "Lower Cretaceous Plesiosaurians (Reptilia) from Australia", Lunds Universitets Arsskrift 56(12): 1-23
  2. ^ Sachs, S., 2004, "Redescription of Woolungasaurus glendowerensis (Plesiosauria: Elasmosauridae) from the Lower Cretaceous of Northeast Queensland", Memoirs of the Queensland Museum 49(2): 713-731


  • Long, J.A. 1998. Dinosaurs of Australia and New Zealand. UNSW Press.

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Trinacromerum is an extinct genus of sauropterygian reptile, a member of the polycotylid plesiosaurs. It contains two species, T. bentonianum and T. kirki. Specimens have been discovered in the Late Cretaceous fossil deposits of what is now modern Kansas and Manitoba.


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