What is Sigillaria?
{{italictitle}} [[File:Stanhope Tree - geograph.org.uk - 2531669.jpg|thumb|200px|Remains of a ''Sigillaria'' tree, Stanhope, [[County Durham]], UK]] [[File:Lepido root top.jpg|thumb|150px|Fossil tree-root of lycopod ]] '''''Sigillaria''''' is a [[lycopod]] fossil of the late [[Carboniferous]] and early [[Permian]].<ref> Taylor T.N. & E.L; Krings M. 2009. ''Paleobotany: the biology and evolution of fossil plants'', p303–307. 2nd ed, Academic Press. ISBN 978-0-12-373972-8</ref> They were typical [[coal forest]] trees similar to the ''[[Lepidodendron]]''. These [[swamp]] forest trees grew to 50 meters. They were [[anchor]]ed by an extensive network of branching underground roots.<ref>''Brittannica'' [https://global.britannica.com/plant/Sigillaria-fossil-plant]{{Dead link|date=September 2021 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> It was a [[Lycopodiophyta|lycopod]], an early land plant. This was one of the trees which made up the [[Carboniferous]] coal-forests. It had thin grasslike leaves that grew on the stem. The stem of the plant was green. Sigillaria reproduced with [[spores]]. It went extinct about 300 million years ago. == References == {{reflist}} [[Category:Trees]] [[Category:Fossil plants]]