Lycopsida

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Lycopsida

[lī′käp·sə·də]
(botany)
Former subphylum of the Embryophyta now designated as the division Lycopodiophyta.
References in periodicals archive ?
Stigmarian rhizomorphs within clastic paleosols and beneath organic-rich horizons record the former presence of lycopsids in wetland environments, both in clastic swamps and incipient peat-forming mires on the floodplain.
12f); Plint and Browne (1994) observed Stigmaria in reddish-grey mudrocks at ~479 m and in-situ lycopsids at ~881 m.
Indeed, the floral remains show a composition (sphenopsids, ferns, pteridosperms, rare lycopsids, and Cordaites), which is indicative of humid conditions.
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.
Initially, he distinguished "scalariform tissues" interpreted as belonging to lycopsids from "discigenous wood-cells" interpreted as gymnospermous (Dawson 1859, p.
However, Dawson failed to appreciate that the primary stems of almost all plant groups, not just the lycopsids, contained small amounts of scalariform tissue, and his arguments based on anatomical correspondence were therefore entirely flawed.
Vegetation includes abundant lycopsids and sphenopsids in situ (Falcon-Lang 1999; Calder et al.
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.