Search results
Results from the WOW.Com Content Network
The most common fossil specimens of Lepidodendrales, as well as the most recognizable, are the compressions of stem surfaces marked with constant, though partially asymmetric, rhomboidal leaf cushions. These fossils look much like tire tracks or alligator skin, lending the Greek name "Lepidodendrales," meaning "scale trees." These leaf cushions ...
Lycopodiopsida is a class of vascular plants also known as lycopsids, [1] lycopods, or lycophytes. Members of the class are also called clubmosses , firmosses , spikemosses and quillworts . They have dichotomously branching stems bearing simple leaves called microphylls and reproduce by means of spores borne in sporangia on the sides of the ...
Lepidodendron is an extinct genus of primitive lycopodian vascular plants belonging the order Lepidodendrales.It is well preserved and common in the fossil record. Like other Lepidodendrales, species of Lepidodendron grew as large-tree-like plants in wetland coal forest environments.
The consensus classification produced by the Pteridophyte Phylogeny Group classification in 2016 (PPG I) places all extant (living) lycophytes in the class Lycopodiopsida. [11] There are around 1,290 to 1,340 such species. [12] [13] [11] For more information on the classification of extant lycophytes, see Lycopodiopsida § Classification.
Older fossils lay even deeper beneath the bone bed. These 8.9-million-year-old rocks included fossilized bones of fish and marine mammals. Experts also found teeth from juvenile megalodons and ...
Stigmaria had a complex branching structure; thus, it is comparable to the rhizomes of the extant (living) relative, the quillworts (genus Isoetes).The stigmarian systems had rhizomorph axes that shows circular scars or a helical arrangement where the root-like appendages were formerly attached.
This article about a prehistoric lycophyte is a stub. You can help Wikipedia by expanding it.
Protolepidodendropsis is a genus of lycopsid known from fossil forests dating from early Late Devonian strata in Svalbard. [1] Fossil forests of Protolepidodendropsis pulchra have been recovered from sandstone and mudstone of the Plantekløfta Formation, estimated to be around 380 million years old. The plants have trunks of up to 10 cm (4 in ...