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IRMNG taxon detailsAntarcticycas E.L. Smoot, T.N. Taylor & T. Delevoryas, 1985 †
fossil only
Smoot, E. L.; Taylor, T. N.; Delevoryas, T. (1985). Structurally preserved fossil plants from Antarctica. I: Antarcticycas, gen. nov., a Triassic cycad stem from the Beardmore Glacier area. <em>American Journal of Botany.</em> 72(9): 1410-1423., available online at https://doi.org/10.1002/j.1537-2197.1985.tb08399.x [details]
Taxonomic remark From Smoot et al., 1985: the Triassic stem [i.e.: Antarcticycas] cannot be specifically related to living representatives...
Taxonomic remark From Smoot et al., 1985: the Triassic stem [i.e.: Antarcticycas] cannot be specifically related to living representatives even at the familial level. Of the three families recognized by Johnson (1959), the Cycadaceae possess polyxylic stems, the Stangeriaceae, monoxylic, and the Zamiaceae both polyxylic and monoxylic. Johnson delimited three tribes within the Zamiaceae and of these the Encephalarteae contains only polyxylie stems, while the Dioeae and Zamieae include taxa with monoxylic anatomy. Of these groups, Antarcticycas is most similar to extant members ofthe Stangeriaceae and the Zamieae based on the limited features available. [details]
IRMNG (2022). Antarcticycas E.L. Smoot, T.N. Taylor & T. Delevoryas, 1985 †. Accessed at: https://www.irmng.org/aphia.php?p=taxdetails&id=1326665 on 2024-04-27
Date action by
original description
Smoot, E. L.; Taylor, T. N.; Delevoryas, T. (1985). Structurally preserved fossil plants from Antarctica. I: Antarcticycas, gen. nov., a Triassic cycad stem from the Beardmore Glacier area. <em>American Journal of Botany.</em> 72(9): 1410-1423., available online at https://doi.org/10.1002/j.1537-2197.1985.tb08399.x [details]
basis of record Farr, E. R.; Zijlstra, G. (eds). (1996-current). Index Nominum Genericorum (ING). A compilation of generic names published for organisms covered by the ICN: International Code of Nomenclature for Algae, Fungi, and Plants. [previously: organisms covered by the International Code for Botanical Nomenclature] (2007 version). , available online at https://naturalhistory2.si.edu/botany/ing/ [details] additional source Hermsen, E. J.; Taylor, E. L.; Taylor, T. N. (2009). Morphology and ecology of the Antarcticycas plant. <em>Review of Palaeobotany and Palynology.</em> 153(1-2): 108-123., available online at https://doi.org/10.1016/j.revpalbo.2008.07.005 [details] verified source for family Smoot, E. L.; Taylor, T. N.; Delevoryas, T. (1985). Structurally preserved fossil plants from Antarctica. I: Antarcticycas, gen. nov., a Triassic cycad stem from the Beardmore Glacier area. <em>American Journal of Botany.</em> 72(9): 1410-1423., available online at https://doi.org/10.1002/j.1537-2197.1985.tb08399.x note: as Cycadales, no family specified [details] name verified source Farr, E. R.; Zijlstra, G. (eds). (1996-current). Index Nominum Genericorum (ING). A compilation of generic names published for organisms covered by the ICN: International Code of Nomenclature for Algae, Fungi, and Plants. [previously: organisms covered by the International Code for Botanical Nomenclature] (2007 version). , available online at https://naturalhistory2.si.edu/botany/ing/ [details] current name source Taylor, T. N.; Taylor, E. L.; Krings, M. (2009). Paleobotany: The Biology and Evolution of Fossil Plants. Second Edition. Academic Press, 1252 pp. , available online at https://www.sciencedirect.com/science/book/9780123739728 [details] extant flag source Farr, E. R.; Zijlstra, G. (eds). (1996-current). Index Nominum Genericorum (ING). A compilation of generic names published for organisms covered by the ICN: International Code of Nomenclature for Algae, Fungi, and Plants. [previously: organisms covered by the International Code for Botanical Nomenclature] (2007 version). , available online at https://naturalhistory2.si.edu/botany/ing/ [details] habitat flag source as per family [details] From other sources
Descriptive info Stem; Lower-Middle Triassic; Fremouw Peak, Beardmore Glacier area, Antarctica. (Index Nominum Genericorum) [details]Taxonomic remark From Smoot et al., 1985: the Triassic stem [i.e.: Antarcticycas] cannot be specifically related to living representatives even at the familial level. Of the three families recognized by Johnson (1959), the Cycadaceae possess polyxylic stems, the Stangeriaceae, monoxylic, and the Zamiaceae both polyxylic and monoxylic. Johnson delimited three tribes within the Zamiaceae and of these the Encephalarteae contains only polyxylie stems, while the Dioeae and Zamieae include taxa with monoxylic anatomy. Of these groups, Antarcticycas is most similar to extant members ofthe Stangeriaceae and the Zamieae based on the limited features available. [details] |
