Middle Palaeozoic microvertebrate assemblages and biogeography of East Gondwana (Australasia, Antarctica)
Silurian vertebrate remains are rare in the Australasian region, mostly lacking from the end Ordovician to the mid-Ludlow presumably because of the purported Gondwana Ice Age. Thelodont, placoderm, acanthodian, ?stem actinopterygian, and probable chondrichthyan remains are known from eastern and western Australia and Irian Jaya. Of significance are the links between eastern Australia and China, with sinacanthid spines known only in these regions, and both having porosiform, but not...[Show more]
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