The museum is currently closed for roof works. Click here for reopening dates and information.

The pachyrhizodontid teleosts from the marine Lower Cretaceous (latest mid to late Albian) sediments of the Eromanga Basin, Queensland, Australia

Title The pachyrhizodontid teleosts from the marine Lower Cretaceous (latest mid to late Albian) sediments of the Eromanga Basin, Queensland, Australia (1020 KB) pdf document icon
Author/s Bartholomai, A.
Citation Bartholomai, A. 2012 02 17: The pachyrhizodontid teleosts from the marine Lower Cretaceous (latest mid to late Albian) sediments of the Eromanga Basin, Queensland, Australia. Memoirs of the Queensland Museum – Nature 56(1): 119-148. https://doi.org/10.17082/j.2204-1478.56-1.2012.2012-11
Accepted 11 March 2010.
Date published 17 February 2012
DOI

https://doi.org/10.17082/j.2204-1478.56-1.2012.2012-11

Keywords Pachyrhizodontidae, Pachyrhizodus, P. marathonensis, P. grawi sp. nov., Toolebuc Formation, Allaru Formation, Lower Cretaceous, Albian, Eromanga Basin, Queensland, Australia
Abstract
Two species of the fossil pachyrhizodontid teleost, Pachyrhizodus, are present in the marine Lower Cretaceous (mid to late Albian) Toolebuc and Allaru Formations of the Eromanga Basin in Queensland, Australia. New morphological data on P. marathonensis (Etheridge Jnr., 1905) is provided as part of a revision of the species. The smaller and much less common P. grawi sp. nov. is described and is shown to co-exist with P. marathonensis but has a more restricted distribution. Pachyrhizodus grawi is more gracile than the larger species, with a shorter premaxilla and with its jaw articulation positioned more anteriorly, below and just behind the back of the orbit.