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The Upper Devonian localities of the Kerman and Tabas area yielded numerous brachythoracid arthrodire remains, referred here mainly to Golshanichthys asiatica nov. gen., nov. sp., and Holonema cf. radiatumObrouchev. Some specimens are suggestive of species belonging to the genera Plourdosteus, Eastmanosteus and Aspidichthys. G. asiatica is a primitive dinichthyid characterized by e.g. very deep posterior and anterior embayments of the central plates.Some ptyctodontid tooth plates of «Rhynchodus and «Ptyctodus type have been found in the Frasnian and Famennian. 相似文献
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The relationships of placoderm fishes 总被引:1,自引:0,他引:1
G. C. YOUNG F.L.S. 《Zoological Journal of the Linnean Society》1986,88(1):1-57
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Some vertebrate remains, referred to an arthrodire, a ptyctodont, a struniiform, and an actinopterygian respectively, have been discovered in a marine horizon of the type section of the Khush-Yeilagh Formation, in eastern Alborz (Mazenderan, Iran). An arthrodire skull-roof fragment from this horizon may be referred to a buchanosteidae, a group known hitherto only from the Lower Devonian of Australia and China. 相似文献
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