Which name(s) should be used for Araucaria-like fossil wood?— Results of a poll
Which name(s) should be used for Araucaria-like fossil wood?— Results of a poll
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DOI：
10.12705/631.7
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发表时间：
2014-02
期刊：
影响因子：
3.4
通讯作者：
M. Philippe;S. McLoughlin;J. Sakala;G. Zijlstra
中科院分区：
文献类型：
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作者：
M. Philippe;S. McLoughlin;J. Sakala;G. Zijlstra
Araucarioxylon Kraus是一个广为人知的化石属，通常应用于与现存的Arau-cariaceae相似的木材。然而，自1905年以来，一些研究人员指出，这个名字是一个非法的初级命名同义词。目前至少有四个属名用于这种类型的化石木材：Agathoxylon Hartig，Araucarioxylon，Dapriylon Endl。和达玛洛希隆·J·舒尔茨汽车旅馆这种不一致的命名应用的问题是复杂的事实，这种类型的木材代表了广泛的植物，包括基础pteridosperms，cordaitaleans，glossopterids，原始针叶树，和南洋杉针叶树，从泥盆纪到全新世的化石记录。南洋杉的保护被多次建议，但从未正式提出。由于普遍使用是一个强有力的论据，在化石木材解剖学家中进行了民意调查，以调查当前和首选的使用情况。结果发现，社区是分裂的，大约五分之一的人建议保留著名的南洋杉，而其他大多数人主张使用合法的Agathoxylon。对回答调查的不同同事的论点进行了综合和讨论。很明显，很少有人支持保护南洋杉。民意调查的第二个方面解决了这样一个问题，即是否应该将南洋杉类化石木材收集到一个独特的化石属中，或者是否应该根据轴向薄壁组织的存在或不存在来识别两个化石属。大多数同事赞成只有一个化石属。Agathoxylon可以合法使用，似乎是这种木材最合适的名称。然而，如果要包括那些缺乏轴向薄壁组织的木材，则必须扩大其原始诊断。
Araucarioxylon Kraus is a widely known fossil-genus generally applied to woods similar to that of the extant Arau- cariaceae. However, since 1905, several researchers have pointed out that this name is an illegitimate junior nomenclatural synonym. At least four generic names are in current use for fossil wood of this type: Agathoxylon Hartig, Araucarioxylon, Dadoxylon Endl. and Dammaroxylon J.Schultze-Motel. This problem of inconsistent nomenclatural application is compounded by the fact that woods of this type represent a wide range of plants including basal pteridosperms, cordaitaleans, glossopterids, primitive conifers, and araucarian conifers, with a fossil record that extends from the Devonian to Holocene. Conservation of Araucarioxylon has been repeatedly suggested but never officially proposed. Since general use is a strong argument for con- servation, a poll was conducted amongst fossil wood anatomists in order to canvass current and preferred usage. It was found that the community is divided, with about one-fifth recommending retention of the well-known Araucarioxylon, whereas the majority of others advocated use of the legitimate Agathoxylon. The arguments of the various colleagues who answered the poll are synthesized and discussed. There is clearly little support for conservation of Araucarioxylon. A secondary aspect of the poll tackled the issue as to whether Araucaria-like fossil woods should be either gathered into a unique fossil-genus, or whether two fossil-genera should be recognized, based on the respective presence or absence of axial parenchyma. A majority of colleagues favoured having one fossil-genus only. Agathoxylon can be used legitimately and appears to be the most appropriate name for such woods. However, its original diagnosis must be expanded if those woods lacking axial parenchyma are to be included.