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IRMNG taxon detailsAegianthus V.A. Krassilov in V.A. Krassilov & E.V. Bugdaeva, 1988 †
Loricanthus V.A. Krassilov & E.V. Bugdaeva, 1999 † · unaccepted
Solaranthus S. Zheng & X. Wang, 2010 † · unaccepted
fossil only
Not documented
Taxonomic remark Deng et al., 2014 and previous workers treat this genus as a cycad (originally its type species was interpreted as a fossil...
Taxonomic remark Deng et al., 2014 and previous workers treat this genus as a cycad (originally its type species was interpreted as a fossil angiosperm fruit), while genera currently synonymized with Aegianthus have been described as Jurassic angiosperms; Herendeen et al., 2017, favour a relationship with the Gnetales, refer that work. From Herendeen et al.: The relationships of Aegianthus are uncertain, but none of these fossils, including the material from Daohugou that we have examined, provide any evidence that supports a relationship to angiosperms. A relationship to cycads was suggested by Deng et al., while Krassilov and Bugdaeva suggested a relationship with Gnetales sensu lato. We favour the latter interpretation, in part because similar peltate microsporangiate heads are also known for the Erdtmanithecales, which are thought to be closely related to the Gnetales. Tekleva and Krassilov also demonstrated a thick laminated endexine, unknown among angiosperms, in pollen from A. resinifer and noted the ultrastructural resemblance to the erdtmanithecalean pollen genus Eucommiidites. [details]
IRMNG (2022). Aegianthus V.A. Krassilov in V.A. Krassilov & E.V. Bugdaeva, 1988 †. Accessed at: https://www.irmng.org/aphia.php?p=taxdetails&id=1353392 on 2024-11-19
Date action by
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]
taxonomy source Herendeen, P. S.; Friis, E. M.; Pedersen, K. R.; Crane, P. R. (2017). Palaeobotanical redux: revisiting the age of the angiosperms. <em>Nature Plants.</em> 3(3): 17015., available online at https://doi.org/10.1038/nplants.2017.15 [details] emendation (re-diagnosis of genus) Deng, S.; Hilton, J.; Glasspool, I. J.; Dejax, J. (2013). Pollen cones and associated leaves from the Lower Cretaceous of China and a re-evaluation of Mesozoic male cycad cones. <em>Journal of Systematic Palaeontology.</em> 12(8): 1001-1023., available online at https://doi.org/10.1080/14772019.2013.819817 [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 Herendeen, P. S.; Friis, E. M.; Pedersen, K. R.; Crane, P. R. (2017). Palaeobotanical redux: revisiting the age of the angiosperms. <em>Nature Plants.</em> 3(3): 17015., available online at https://doi.org/10.1038/nplants.2017.15 [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] original description (of Solaranthus S. Zheng & X. Wang, 2010 †) Zheng, S.; Wang, X. (2010). An undercover angiosperm from the Jurassic of China. <em>Acta Geologica Sinica - English Edition.</em> 84(4): 895-902., available online at https://doi.org/10.1111/j.1755-6724.2010.00252.x [details] original description (of Loricanthus V.A. Krassilov & E.V. Bugdaeva, 1999 †) Krassilov, V. A.; Bugdaeva, V. B. (1999). An angiosperm cradle community and new proangiosperm taxa. <em>Acta Palaeobotanica.</em> Supplement 2: 111-127. page(s): 115 [details] Unreviewed
Descriptive info Pollen cone; Middle Jurassic; Angara river, Ust-Balej, E Siberia, U.S.S.R. (Index Nominum Genericorum) [details]Taxonomic remark Deng et al., 2014 and previous workers treat this genus as a cycad (originally its type species was interpreted as a fossil angiosperm fruit), while genera currently synonymized with Aegianthus have been described as Jurassic angiosperms; Herendeen et al., 2017, favour a relationship with the Gnetales, refer that work. From Herendeen et al.: The relationships of Aegianthus are uncertain, but none of these fossils, including the material from Daohugou that we have examined, provide any evidence that supports a relationship to angiosperms. A relationship to cycads was suggested by Deng et al., while Krassilov and Bugdaeva suggested a relationship with Gnetales sensu lato. We favour the latter interpretation, in part because similar peltate microsporangiate heads are also known for the Erdtmanithecales, which are thought to be closely related to the Gnetales. Tekleva and Krassilov also demonstrated a thick laminated endexine, unknown among angiosperms, in pollen from A. resinifer and noted the ultrastructural resemblance to the erdtmanithecalean pollen genus Eucommiidites. [details] |
