Skip to main content

Free Content Which name(s) should be used for Araucaria-like fossil wood?—Results of a poll

Download Article:
 Download
(PDF 346.3 kb)
 

Abstract:

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 conservation, 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.

Keywords: AGATHOXYLON; ARAUCARIOXYLON; DADOXYLON; FOSSIL WOOD; NOMENCLATURE

Document Type: Research Article

DOI: http://dx.doi.org/10.12705/631.7

Affiliations: 1: DAStietz, Museum für Naturkunde, 09111 Chemnitz, Germany 2: UMR 5276 of the CNRS and Université Lyon 1, 69622 Villeurbanne, France;, Email: philippe@univ-lyon1.fr 3: Laboratory of Palaeobotany and Palynology, Budapestlaan 4, 3584 CD Utrecht, the Netherlands, Naturalis Biodiversity Center, P.O. Box 2317, 2300 RA Leiden, the Netherlands 4: Department of Paleobotany, Swedish Museum of Natural History, Box 50007, 104 05 Stockholm, Sweden 5: Charles University in Prague, Faculty of Science, Institute of Geology and Palaeontology, Albertov 6, 128 43 Praha, Czech Republic 6: Laboratory of Palaeobotany and Palynology, Budapestlaan 4, 3584 CD Utrecht, the Netherlands

Publication date: February 20, 2014

iapt/tax/2014/00000063/00000001/art00019
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more