Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,919,270,433 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

Sigillaria

   Also found in: Dictionary/thesaurus, Wikipedia 0.03 sec.
Sigillaria (sĭjĭlâr`ēə), genus of fossil club moss allied to Lepidodendron Lepidodendron and Sigillaria , two principal genera of an extinct group of primitive vascular trees. They dominated the forests of the early Carboniferous period until the ferns gained ascendancy.
..... Click the link for more information. , abundant in the Carboniferous period. The thick trunk was rarely branched and was covered for several feet from the top with erect leaves that were larger than those of Lepidodendron; the leaf scars were in vertical rows. The fossilized root stocks of Sigillaria, as of Lepidodendron, are known as stigmaria. Club mosses are classified in the division Lycopodiophyta Lycopodiophyta , division of the plant kingdom consisting of the organisms commonly called club mosses and quillworts. As in other vascular plants, the sporophyte, or spore-producing phase, is the conspicuous generation, and the gametophyte, or gamete-producing
..... Click the link for more information. .
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
 
An upright standing Sigillaria stem from the Westphalian of Poland clearly shows imprints of a larger winding axis (Gradzinski & Doktor, 1995).
How Paleozoic vines and lianas got off the ground: on scrambling and ... by Krings, Michael; Kerp, Hans; Taylor, Thomas N.; Taylor, Edith L. / The Botanical Review
For several years, it had been known that Stigmaria found in the underclay of coals was in fact the rhizophore of Sigillaria (Logan 1841; Brown 1846), and to this evidence Dawson was able to add many other convincing proofs (Fig.
Sir William Dawson (1820-1899): a very modern paleobotanist by Falcon-Lang, Howard J.; Calder, John H. / Atlantic Geology
In another example, it is postulated that the fossil Chaloneria (Isoetales) evolved from its putative ancestor Sigillaria (Lepidodendrales) by neoteny and progenesis (Bateman, 1994).
Heterochrony in Plant Evolutionary Studies through the Twentieth ... by LI, PING; JOHNSTON, MARK O. / The Botanical Review
 
 
 
Encyclopedia
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
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.