Lycopsida

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Lycopsida

[lī′käp·sə·də]
(botany)
Former subphylum of the Embryophyta now designated as the division Lycopodiophyta.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Scattered organic-rich horizons, green mottles, and rare Stigmaria within redbeds suggests that some of these mudrocks were clastic wetlands where there was sufficient water to allow partial preservation of organics and growth of lycopsids. These former wetland soils developed their reddish-brown color either in response to seasonal water-table fluctuations that caused short-lived oxidizing events within wetland soils (Roberts et al.
A Stigmaria (lycopsid rhizomorph) with a pyritized rind, which has a [delta][sup.34]S value of 31[per thousand], was recovered from poorly exposed mudrocks in the intertidal zone at ~949 m (Wagner et al.
Indeed, the floral remains show a composition (sphenopsids, ferns, pteridosperms, rare lycopsids, and Cordaites), which is indicative of humid conditions.
nov., a pseudoherbaceous segregate of Lepidodendron (Pennsylvanian): Phylogenetic context for evolutionary changes in lycopsid growth architecture.
A few of these trees comprise lycopsids, calamiteans, and tree ferns, all types previously documented at many other sites (Gastaldo 1992; Calder et al.
A fossil lycopsid forest succession in the classic Joggins section of Nova Scotia: paleoecology of a disturbance-prone Pennsylvanian wetland.
Diversity changes in lycopsid and aquatic fern megaspores through geologic time.
Initially, he distinguished "scalariform tissues" interpreted as belonging to lycopsids from "discigenous wood-cells" interpreted as gymnospermous (Dawson 1859, p.
Vegetation includes abundant lycopsids and sphenopsids in situ (Falcon-Lang 1999; Calder et al.
Le specimen feuillu de Bothrodendron punctatum decrit ici depuis le Cap-Breton, en Nouvelle-Ecosse (Canada), est donc le premier en son genre que l'on decouvre; il fournit d'autres donnees de schemas de croissance et de chute de branches de ces lycopsides, qui sont plutot rares.
Although sparse, the presence of lycopsid foliage and aerial stems in the upper two-thirds of the section indicates that standing water was available for their reproduction (Phillips and DiMichele 1992), at least temporarily or in restricted areas of the landscape.