Chondrichthyan-like scales from the Middle Ordovician of Australia
Microvertebrate sampling of the Stairway Sandstone (Darriwilian, Middle Ordovician, central Australia) has yielded scales that are chondrichthyan-like in their overall construction, and Tantalepis gatehousei gen. et sp. nov. is erected here to describe these specimens. Tantalepis gatehousei gen. et sp. nov. is the stratigraphically oldest microsquamous taxon described thus far, and the 'shark-like' appearance of the scales may extend the chondrichthyan lineage back into the Middle Ordovician....[Show more]
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