Caytoniales

0.01 sec.

Caytoniales [‚kā·tän·ē′ā‚lēz]

(paleobotany)

An order of Mesozoic plants.

Caytoniales

an order of fossil gymnospermous plants, which were widespread between the second half of the Triassic period and the end of the Cretaceous period. The leaves were petiolate and compound palmate, usually of four lanceolate leaflets with pinnate venation. Rounded cupules resembling ovaries were arranged in two rows on the leafless stalks. There were between six and 12 ovules in the cupule; grains of pollen with two air sacs were discovered in some. Oblong anthers, adnate in groups of four, were attached to the branched stems of the sporophylls.

Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.

?Page tools

Printer friendly
Cite / link

Feedback

Mentioned in	?		References in periodicals archive	?		Encyclopedia browser	?		Full browser	?
No references found			The Bennettitales have consistently been placed near the angiosperms plus the Gnetales (Crane, 1985b; Doyle & Donoghue, 1987), and the Cycadales occur as a more basally divergent group, below the conifers and sometimes below Glossopteris and the Caytoniales (Doyle & Donoghue, 1986, 1992; Nixon et al. Systematics, ontogeny, and phylogenetic implications of exceptional ... by Dower, Beatrice L.; Bateman, Richard M.; Stevenson, Dennis Wm. / The Botanical Review			cay cay sandstone Cayce, Edgar Cayenne Cayenne Software Cayes Cayeux, Lucien Cayey Cayley Cayley algebra Cayley numbers Cayley's sextic Cayley's theorem Cayley, Arthur Cayley, George Cayley, Sir George Cayley-Hamilton theorem Cayley-Klein parameters Caylus, Anne Claude Philippe de Tubières, comte de Caylus, Marie Marguerite, comtesse de cayman Cayman Islands Cayo Costa State Park cayola Cayton, Horace Roscoe Caytoniales Cayucos State Beach Cayuga Cayuga County Cayuga Lake Cayuga Lake State Park Cayugan Cayuse Cazenovia Park Cazenovian Cazneau, Jane Maria Eliza Storms CB CB radio CB1S CB2S CBASIC CBBS CBC CBC-MAC CBD CBIR CBM CBN CBP CBR CBS			Caymans Caymans CAYMC Caymen Caymen Caymen islands Caymen islands Caymon Cayn CAYNA Cayo Cayo Costa Island State Park Cayo Costa State Park cayola Cayor Cayos Cayote Cayote Cayote CAYP CAYRE Cays Cays Cays CAYSA CAYSH CAYSL Cayster River CAYT Cayton, Horace Roscoe Caytoniales Cayucos State Beach Cayuga Cayuga Cayuga County Cayuga County Convention and Visitors Bureau Cayuga County Office of Tourism Cayuga County, New York Cayuga County, NY Cayuga Dressage and Combined Training Cayuga Heights Deer Project Cayuga Heights Fire Department Cayuga Lake Cayuga Lake Cayuga Lake Defense Fund Cayuga Lake Scenic Byway Cayuga Lake State Park Cayuga Lake State Park Cayuga Lake Watershed Network Cayuga nation Cayuga Nature Center Cayugan Cayugas Cayugas Cayuni River cayuse cayuse cayuse Cayuse (people) Cayuse (people) Cayuse (people)

Encyclopedia

Free Tools:	For surfers: Free toolbar & extensions \| Word of the Day \| Help For webmasters: Free content \| Linking \| Lookup box \| Double-click lookup

Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.