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- Bennettitales abstract "Bennettitales (the cycadeoids) is an extinct order of seed plants that first appeared in the Triassic period and became extinct in most areas toward the end of the Cretaceous (i.e. they existed around 250 to 70 million years ago), although some Bennettitales appear to have survived into Oligocene times in Tasmania and eastern Australia. Some were characterized by thick trunks and pinnately compound leaves that bore a superficial resemblance to those of cycads, differing primarily in stomatal arrangement.The taxon comprises two groups, the Cycadeoidaceae, represented by Cycadeoidea and Monanthesia which had stout trunks and bisporangiate strobili (cones serving as their reproductive structures), and the Williamsoniaceae including Williamsonia, Williamsoniella, Wielandella and Ischnophyton which had slender, branching trunks and either bisporangiate or monosporangiate strobili. Bennettitales have been placed among the anthophytes and for some time were considered to be close relatives of the flowering plants on account of their flower-like reproductive structures (a whorl of microsporangiate structures that surround an inner receptacle). However, more detailed morphological studies have shown the hypothetical anthophytes clade to be polyphyletic, with the Bennettitales more closely related to the cycads, ginkgo and conifers than to the angiosperms.Molecular fossil evidence, however, indicates the possibility that Bennettitales and Angiosperms (along with Gigantopteridales) form a clade, based on the presence of oleanane in fossils of these groups.".
- Bennettitales class Spermatophyte.
- Bennettitales division Cycad.
- Bennettitales division Spermatophyte.
- Bennettitales kingdom Plant.
- Bennettitales thumbnail Bennettitales-cycadeoidaceae.jpg?width=300.
- Bennettitales wikiPageExternalLink cycadeoidophyta.htm.
- Bennettitales wikiPageExternalLink mesocommunities.htm.
- Bennettitales wikiPageExternalLink bennettitales.html.
- Bennettitales wikiPageID "1885646".
- Bennettitales wikiPageRevisionID "564431669".
- Bennettitales classis Spermatophyte.
- Bennettitales divisio "Cycadophyta".
- Bennettitales hasPhotoCollection Bennettitales.
- Bennettitales imageCaption "A Cycadeoid, showing an "inflorescence" in the top-right".
- Bennettitales ordo "Bennettitales †".
- Bennettitales regnum "Plantae".
- Bennettitales subdivisio "Cycadophyta".
- Bennettitales subdivision "*Cycadeoidaceae *Williamsoniaceae".
- Bennettitales subdivisionRanks "Families".
- Bennettitales superdivisio Spermatophyte.
- Bennettitales subject Category:Bennettitales.
- Bennettitales subject Category:Mesozoic_life.
- Bennettitales subject Category:Prehistoric_plants.
- Bennettitales type LivingThing100004258.
- Bennettitales type Object100002684.
- Bennettitales type Organism100004475.
- Bennettitales type PhysicalEntity100001930.
- Bennettitales type Plant100017222.
- Bennettitales type PrehistoricPlants.
- Bennettitales type Whole100003553.
- Bennettitales type Cycad.
- Bennettitales type Eukaryote.
- Bennettitales type Plant.
- Bennettitales type Species.
- Bennettitales type Plant.
- Bennettitales type Organism.
- Bennettitales comment "Bennettitales (the cycadeoids) is an extinct order of seed plants that first appeared in the Triassic period and became extinct in most areas toward the end of the Cretaceous (i.e. they existed around 250 to 70 million years ago), although some Bennettitales appear to have survived into Oligocene times in Tasmania and eastern Australia.".
- Bennettitales label "Benetyty".
- Bennettitales label "Bennettitales".
- Bennettitales label "Bennettitales".
- Bennettitales label "Bennettitales".
- Bennettitales label "Bennettitales".
- Bennettitales label "Bennettitales".
- Bennettitales label "Bennettitales".
- Bennettitales label "Cycadeoidales".
- Bennettitales label "ベネチテス目".
- Bennettitales sameAs Benetity.
- Bennettitales sameAs Bennettitales.
- Bennettitales sameAs Bennettitales.
- Bennettitales sameAs Bennettitales.
- Bennettitales sameAs Bennettitales.
- Bennettitales sameAs ベネチテス目.
- Bennettitales sameAs Cycadeoidales.
- Bennettitales sameAs Benetyty.
- Bennettitales sameAs Bennettitales.
- Bennettitales sameAs m.063pt5.
- Bennettitales sameAs Q132823.
- Bennettitales sameAs Q132823.
- Bennettitales sameAs Bennettitales.
- Bennettitales wasDerivedFrom Bennettitales?oldid=564431669.
- Bennettitales depiction Bennettitales-cycadeoidaceae.jpg.
- Bennettitales isPrimaryTopicOf Bennettitales.