台湾中新世Nautilus(软体动物,头足目)及其在印度-太平洋的化石记录

IF 1 4区 地球科学 Q4 GEOSCIENCES, MULTIDISCIPLINARY Island Arc Pub Date : 2022-03-16 DOI:10.1111/iar.12442
James L. Goedert, Steffen Kiel, Cheng-Hsiu Tsai
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引用次数: 1

摘要

头足类鹦鹉螺属的化石记录一直被掩盖,因为20世纪一些有影响力的分类学家认为与鹦鹉螺相似的化石是其他属。我们现在将曾经被归类为其他属物种的化石识别为鹦鹉螺属物种。这包括台湾中新世岩石的化石,这些化石之前被描述为台湾熊,但在此被认为是印度-太平洋地区最北的新第三纪Nautilus记录。该名称被更正为Nautilus taiwanus,现在已知出现在台湾中部的两个地层中,即中新世早期的Shihmensun和中新世中早期的Houdongkeng地层。来自印度尼西亚的中新世化石被归入其他属,现在被认为代表鹦鹉螺,因为它们最初被分配,此外还有来自澳大利亚的几个中新世物种,这些物种为该属提供了最南端的新近纪化石记录。这些印度-太平洋化石中的一些可能代表相同的物种,但需要更多的标本来确定这些新第三纪分类群的变异程度。
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Miocene Nautilus (Mollusca, Cephalopoda) from Taiwan, and a review of the Indo-Pacific fossil record of Nautilus

The fossil record of the cephalopod genus Nautilus has been obscured because a few influential taxonomists during the 20th Century decided that fossils similar to Nautilus were instead other genera. We now recognize fossils once classified as species of other genera as species of Nautilus. This includes fossils from Miocene rocks of Taiwan that were previously described as Kummelonautilus taiwanum but herein recognized instead as being the northernmost Neogene record of Nautilus in the Indo-Pacific region. The name is corrected to Nautilus taiwanus, and now known to occur in two formations in central Taiwan, the early Miocene Shihmentsun and early to middle Miocene Houdongkeng formations. Miocene fossils from Indonesia that were placed in other genera are now considered to represent Nautilus as they were originally assigned, in addition to several Miocene species from Australia, which provide the southernmost Neogene fossil record for the genus. Some of these Indo-Pacific fossils may represent the same species, but more specimens are needed to determine the amount of variability within these Neogene taxa.

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来源期刊
Island Arc
Island Arc 地学-地球科学综合
CiteScore
2.90
自引率
26.70%
发文量
32
审稿时长
>12 weeks
期刊介绍: Island Arc is the official journal of the Geological Society of Japan. This journal focuses on the structure, dynamics and evolution of convergent plate boundaries, including trenches, volcanic arcs, subducting plates, and both accretionary and collisional orogens in modern and ancient settings. The Journal also opens to other key geological processes and features of broad interest such as oceanic basins, mid-ocean ridges, hot spots, continental cratons, and their surfaces and roots. Papers that discuss the interaction between solid earth, atmosphere, and bodies of water are also welcome. Articles of immediate importance to other researchers, either by virtue of their new data, results or ideas are given priority publication. Island Arc publishes peer-reviewed articles and reviews. Original scientific articles, of a maximum length of 15 printed pages, are published promptly with a standard publication time from submission of 3 months. All articles are peer reviewed by at least two research experts in the field of the submitted paper.
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