2014年7月3日
A probable shark dorsal fin spine fragment from the Early Triassic of the Arrow Rocks sequence, Whangaroa, northern New Zealand
New Zealand Journal of Geology and Geophysics
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- 巻
- 57
- 号
- 3
- 開始ページ
- 295
- 終了ページ
- 299
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1080/00288306.2014.889722
- 出版者・発行元
- Taylor and Francis Asia Pacific
The ornament on a small external cast in pink chert shows considerable similarity with that of various Middle Palaeozoic and Triassic fish genera. It comes from the Permian-Triassic Oruatemanu Formation of Arrow Rocks, Whangaroa area, eastern Northland. Conodont faunas from a few metres above and below the sample allow correlation with the Neospathodus pakistanensis zone of the Early Triassic, which is assigned to the late Dienerian (late Induan), with adjacent conodont zone faunas in their correct stratigraphic association. The cast is assumed to be that of a small fragment of fin spine, most likely from the junction area of the crown and root on the right-hand side of a dorsal fin spine, possibly anterior, of a marine ctenacanthoid shark, a basal shark order not previously recorded from New Zealand.
- ID情報
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- DOI : 10.1080/00288306.2014.889722
- ISSN : 1175-8791
- ISSN : 0028-8306
- SCOPUS ID : 84926408549