An ordovician vertebrate from western New South Wales, with comments on Cambro-Ordovician vertebrate distribution patterns
A fish plate impression from the Ordovician Rowena Formation in Mutawintji National Park is referred to an indeterminate species of the genus Arandaspis Ritchie & Gilbert-Tomlinson, 1977, genotype of the family Arandaspididae, previously known only from the Middle Ordovician Stairway Sandstone in the Amadeus Basin of central Australia. The Rowena Formation has previously been correlated with units underlying the Stairway Sandstone (Pacoota Sandstone, Horn Valley Siltstone) in the Amadeus Basin,...[Show more]
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