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Topics related to "Lepidodendron"

Carboniferous period
Carboniferous period , fifth period of the Paleozoic era of geologic time (see Geologic Timescale , table), from 350 to 290 million years ago. Historical Geology of the Period The Carboniferous period was marked by vast, coal-forming swamps (see also bog ) and a succession of changes i... Read more
Permian period
Permian period [from Perm, Russia], sixth and last period of the Paleozoic era (see Geologic Timescale , table) from 250 to 290 million years ago. Historical Geology of the Period The Lower Permian During the Permian period, changes in the earth's surface that had begun in the pre... Read more

Encyclopedia entries related to "Lepidodendron"

Lepidodendron and Sigillaria
Book article from: The Columbia Encyclopedia, Sixth Edition Lepidodendron and Sigillaria , two principal genera...and accompanying coal deposits. In Lepidodendron the leaf scars are diamond-shaped...trees and to produce new shoots. Lepidodendron and Sigillaria are classified in the...
Sigillaria
Book article from: The Columbia Encyclopedia, Sixth Edition ...genus of fossil club moss allied to Lepidodendron , abundant in the Carboniferous period...leaves that were larger than those of Lepidodendron ; the leaf scars were in vertical rows...fossilized root stocks of Sigillaria, as of Lepidodendron, are known as stigmaria. Club mosses...
fossil plants
Book article from: The Oxford Companion to the Earth ...different parts of the same plant are given different names. For example, the large tree-like Carboniferous plant known as Lepidodendron has a rhizome underground called Stigmaria , leaves known as Cyperites , cones known as Lepidostrobus , and so on. To complicate...
stigmaria
Book article from: The Columbia Encyclopedia, Sixth Edition stigmaria see Lepidodendron and Sigillaria .
Permian period
Book article from: The Columbia Encyclopedia, Sixth Edition ...and a notable increase in numbers and varieties of reptiles mainly because of the continental changes. Among plants, Lepidodendron and Sigillaria became rare, but ferns and conifers persisted. The widely distributed "seed fern," Glossopteris, which...
Carboniferous period
Book article from: The Columbia Encyclopedia, Sixth Edition ...Pennsylvanian. It included ferns and fernlike trees; giant horsetails, called calamites; club mosses, or lycopods, such as Lepidodendron and Sigillaria; seed ferns; and cordaites, or primitive conifers. Land animals included primitive amphibians, reptiles...
Lycopodiophyta
Book article from: The Columbia Encyclopedia, Sixth Edition ...and are therefore often not readily identified. The order Lepidodendrales contains members known only from fossil specimens dating from the Upper Devonian to Permian times. Lepidodendron , the most common genus, was of tree size.

Dictionary entries related to "Lepidodendron"

Lepidodendron selaginoides
Book article from: A Dictionary of Earth Sciences Lepidodendron selaginoides Important species of Palaeozoic plant, characterized...leaf scars, and by large cones. During the Upper Carboniferous , Lepidodendron species flourished on several continents and the trunks grew up to...
Carboniferous
Book article from: A Dictionary of Plant Sciences ...were dominated by Lycopsida and Calamitaceae , some of which grew to the size of trees (see CALAMITES CISTIIFORMES and LEPIDODENDRON SELAGINOIDES ), and the forest floor supported ferns and seed ferns. The buried vegetation was compressed and changed...
Lepidophloios kilpatrickense
Book article from: A Dictionary of Earth Sciences ...The earliest known representative of the important Palaeozoic family of plants, the Lepidodendraceae. Closely related to Lepidodendron , Lepidophloios kilpatrickense is distinguished by its internal anatomy. It is recorded from the Upper Carboniferous of...
Lycopsida
Book article from: A Dictionary of Earth Sciences ...the bark are common as fossils in coal balls and the roof shales of Carboniferous coal seams. Prominent genera included Lepidodendron , Lepidophloios , and Sigillaria (in which the spiral leaf-scar pattern fell into discrete vertical rows).
form-genus
Book article from: A Dictionary of Earth Sciences ...similarities in morphology. Later discoveries may show different form-genera to have derived from the same plant, e.g. Stigmaria -type roots and Lepidodendron -type bark. See also CORDAITALES ; and CALAMITES CISTIIFORMES .

Related newspaper, magazine, and trade journal articles from HighBeam Research

We grasped the coal by the tongs and brought in the impostor
Newspaper article from: The Scotsman; 8/15/2002; ; 700+ words ; ...flats and giant dragonflies rattled through steamy forests of trees whose remains today bear museum-case names such as lepidodendron and calamites, some of whose diminutive descendants, horsetails, cluster against the path just yards from where these...
When Castle Hill was beneath the sea.(Features)
Newspaper article from: Huddersfield Daily Examiner (Huddersfield, England); 5/12/2006; 700+ words ; ...fossils in the district, the shark-like fish that was found at Brockholes, the three-metre remnant of the giant clubmoss lepidodendron (which grew up to 30m high) at Appleton Quarry, Shepley. At the bottom of the steps leading up to the jubilee tower...
Analysis: Reaction to Kansas state Board of Education's decision to de-emphasize the teaching of evolution in public schools
Transcript from: Sounds Like Science (NPR); 8/28/1999; ; 700+ words ; ...on teacher. Here, he talks about his prized possession. Mr. DENNIS ARY (Teacher): This is a fossil of an ancient lepidodendron tree. And if you look at it, you can see these little places here where the needles came out. LEWIS: Ary has taught...
Early Mississippian lycopsid forests in a delta-plain setting at Norton, near Sussex, New Brunswick, Canada
Magazine article from: Journal of the Geological Society; 11/1/2004; ; 700+ words ; ...America and Europe, and have been studied for over two centuries (Gastaldo 1986a). These spectacular upright specimens of Lepidodendron sensu latu and Sigillaria with attached Stigmaria rootstocks (Scott & Calder 1994) provide an evocative record of...
Response of late carboniferous tropical vegetation to transgressive-regressive rhythms at Joggins, Nova Scotia
Magazine article from: Journal of the Geological Society; 7/1/2003; ; 700+ words ; ...regressive rhythms. Results show that rising base level resulted in retrograding submerged coastal mires co-dominated by Lepidodendron and Lepidophloios, which were replaced by short-lived Paralycopodites communities immediately following mire drowning...