Banksieaephyllum (original) (raw)
Banksieaephyllum is a plant genus that encompasses organically preserved fossil leaves that can be attributed to the Proteaceae tribe Banksieae, but cannot be attributed to a genus. Before 1950, many fossil leaves were attributed to the genera Banksia and Dryandra. In most cases, leaves with triangular lobes were associated with Dryandra, and leaves with serration were associated with Banksia. In 1950, Isabel Cookson and Suzanne Duigan showed this policy to be flawed, by demonstrating that the leaves of the two genera cannot be reliably distinguished. Since these two genera then comprised tribe Banksieae, Cookson and Duigan erected Banksieaephyllum to contain such leaves.
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| dbo:abstract | Banksieaephyllum is a plant genus that encompasses organically preserved fossil leaves that can be attributed to the Proteaceae tribe Banksieae, but cannot be attributed to a genus. Before 1950, many fossil leaves were attributed to the genera Banksia and Dryandra. In most cases, leaves with triangular lobes were associated with Dryandra, and leaves with serration were associated with Banksia. In 1950, Isabel Cookson and Suzanne Duigan showed this policy to be flawed, by demonstrating that the leaves of the two genera cannot be reliably distinguished. Since these two genera then comprised tribe Banksieae, Cookson and Duigan erected Banksieaephyllum to contain such leaves. Since then, Banksia and Dryandra have been further grouped into subtribe Banksiinae, and another subtribe, Musgraveinae, erected to contain two new genera. Interpretations of Banksieaephyllum are now no longer consistent. Some botanists continue to hold that Banksieaephyllum is for fossil leaves that can be attributed to Banksieae but not to a genus; that is, they include fossils that cannot be excluded from the Musgravinae. Others hold that Cookson and Duigan's intentions were for the genus to hold fossil leaves that are known to be Dryandra or Banksia, but cannot be attributed to either with certainty; thus they now define the genus in terms of Banksiinae rather than Banksieae. Dryandra has now been transferred into Banksia. Although as yet undetermined, the latter interpretation would result in Banksieaephyllum becoming a nomenclatural synonym of Banksia. Fossils ascribed to Banksieaephyllum have been found in sediments dating from the Paleocene to early Miocene (66 to 16 million years ago). In 1998, the most recent synopsis, there were 16 species, including: * Oligocene, Latrobe Valley, Victoria. * Latrobe Valley - has long narrow leaves resembling Banksia candolleana or B. formosa. * - possibly not a member of proteaceae. * Early Eocene (Deans Marsh and Anglesea, Victoria) and Middle Eocene (Golden Grove); may be more closely related to Musgravea. * Late Oligocene - Early Miocene, Loy Yang, Victoria. * Oligocene, Yallourn, Victoria. * * Early Oligocene, Lake Cethana, Tasmania. Leaves up to 5.5 cm long and 6 mm wide, resembling Banksia spinulosa in appearance but has some cellular characteristics of Musgravea. * * * Early Oligocene, Lake Cethana, Tasmania. * Oligocene, Pioneer Tasmania * Late Paleocene, Cambalong Creek (near Bombala), southern New South Wales. * - possibly not a member of proteaceae. * Late Palaeocene, Lake Bungarby, southeastern New South Wales. * Late Oligocene - Early Miocene, Morwell, Victoria * However, Carpenter, Jordan & Hill (2016) transferred the species B. incisum and B. cuneatum to the separate genus , while also transferring the species B. acuminatum to the genus Banksia and renaming it . In addition, the authors excluded the species B. attenuatum, B. longifolium, B. pinnatum, B. praefastigatum, B. regularis and B. westdaliense from Banksieae and transferred those species to the separate genus . (en) |
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| dbo:wikiPageWikiLink | dbc:Prehistoric_angiosperm_genera dbr:Genus dbr:Miocene dbr:Musgraveinae dbr:Loy_Yang_Power_Station dbr:Musgravea dbr:Banksia dbr:Banksia_spinulosa dbr:Banksieae dbr:Banksieaeformis dbr:Banksiinae dbc:Proteaceae_genera dbr:Dryandra dbr:Isabel_Clifton_Cookson dbr:Banksia_candolleana dbr:Banksia_formosa dbr:Banksieaeidites dbr:Paleocene dbc:Eocene_plants dbc:Extinct_flora_of_Australia dbc:Miocene_plants dbc:Oligocene_plants dbc:Paleocene_plants dbc:Proteaceae dbc:Proteales_of_Australia dbr:Plant dbr:Proteaceae dbr:Banksia_cooksoniae dbr:Banksieaefolia dbr:Pseudobanksia dbr:Banksieaephyllum_acuminatum dbr:Banksieaephyllum_angustum dbr:Banksieaephyllum_attenuatum dbr:Banksieaephyllum_cuneatum dbr:Banksieaephyllum_elongatus dbr:Banksieaephyllum_fastigatum dbr:Banksieaephyllum_incisum dbr:Banksieaephyllum_linearis dbr:Banksieaephyllum_longifolium dbr:Banksieaephyllum_obovatum dbr:Banksieaephyllum_orientalis dbr:Banksieaephyllum_pinnatum dbr:Banksieaephyllum_praefastigatum dbr:Banksieaephyllum_regularis dbr:Banksieaephyllum_taylorii dbr:Banksieaephyllum_urnifome dbr:Banksieaephyllum_westdaliense |
| dbp:authority | Cookson & Duigan (en) |
| dbp:displayParents | 2 (xsd:integer) |
| dbp:subdivision | See text (en) |
| dbp:subdivisionRanks | Species (en) |
| dbp:taxon | Banksieaephyllum (en) |
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| dcterms:subject | dbc:Prehistoric_angiosperm_genera dbc:Proteaceae_genera dbc:Eocene_plants dbc:Extinct_flora_of_Australia dbc:Miocene_plants dbc:Oligocene_plants dbc:Paleocene_plants dbc:Proteaceae dbc:Proteales_of_Australia |
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| rdfs:comment | Banksieaephyllum is a plant genus that encompasses organically preserved fossil leaves that can be attributed to the Proteaceae tribe Banksieae, but cannot be attributed to a genus. Before 1950, many fossil leaves were attributed to the genera Banksia and Dryandra. In most cases, leaves with triangular lobes were associated with Dryandra, and leaves with serration were associated with Banksia. In 1950, Isabel Cookson and Suzanne Duigan showed this policy to be flawed, by demonstrating that the leaves of the two genera cannot be reliably distinguished. Since these two genera then comprised tribe Banksieae, Cookson and Duigan erected Banksieaephyllum to contain such leaves. (en) |
| rdfs:label | Banksieaephyllum (en) |
| owl:sameAs | freebase:Banksieaephyllum yago-res:Banksieaephyllum wikidata:Banksieaephyllum https://global.dbpedia.org/id/4WFsN |
| prov:wasDerivedFrom | wikipedia-en:Banksieaephyllum?oldid=1049962843&ns=0 |
| foaf:isPrimaryTopicOf | wikipedia-en:Banksieaephyllum |
| is dbo:wikiPageWikiLink of | dbr:Banksieaeformis dbr:Banksia_novae-zelandiae dbr:Banksieaeidites dbr:Suzanne_Duigan dbr:2016_in_paleobotany dbr:Grevilleoideae |
| is foaf:primaryTopic of | wikipedia-en:Banksieaephyllum |