DEVONIAN FISH REMAINS FROM THE MUNABIA SANDSTONE, CARNARVON BASIN, WESTERN AUSTRALIA

WA Museum Records and Supplements | Updated 1 decade ago

Abstract: Fish fossils have been recovered from two horizons at the base of the Munabia Sandstone, near the type section of Williambury Station. The fauna contains the antiarch Bothriolepis sp., the arthrodire Holonema sp., and an indeterminate osteolepidid crossopterygian. The presence of Holonema (Eifelian-Frasnian) with Bothriolepis (Givetian-Famennian), as well as microfossil dates from the underlying conformable Gneudna Formation (Early Frasnian), suggests a Frasnian age for the base of the Munabia Sandstone. Conodonts suggest that the top of the Munabia Sandstone is of Lower Famennian age.