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Matoniaceae
Matoniaceae is one of the three families of ferns in the Gleicheniales order of the Polypodiopsida class. Fossil records reveal that Matoniaceae ferns were abundant during the Mesozoic era (about 250-million to 66-million years ago), during which they lived on every continent, including Antarctica, with eight genera and 26 species, with the oldest known specimens being from the Middle Triassic of Antarctica. Today the family is much less abundant, and also less diverse, with only two extant genera and four species, which are limited to portions of southeastern Asia. The following diagram shows a likely phylogenic relationship with the other two families of the Gleicheniales. Extant taxa * genus ** species ** species * genus ** species ** species Extinct genera Some common Mesozoic Matoniaceae genera and a sampling of their species include: * genus ** species ** species * genus ** species ** species ** species ** species ** species * genus * genus [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gleicheniales
Gleicheniales is an order of ferns in the subclass Polypodiidae (the leptosporangiate ferns). The Gleicheniales has spore records potentially as early as the Early Carboniferous, but the oldest unambiguous macrofossil records date to the Early Permian. Description These ferns are characterized by root steles having 3–5 protoxylem poles and antheridia with 6–12 narrow, twisted or curved cells in their walls, Gleichenia-type spore wall ultrastructure. Otherwise, their habitus is highly diverse, including plants with the typical fern fronds, others whose leaves resemble those of palm trees, and yet others again which have undivided leaves. They are tropical ferns, most diverse in Asia and the Pacific region. Classification In the molecular phylogenetic classification of Smith et al. in 2006, the Gleicheniales were placed in class Polypodiopsida (the leptosporangiate ferns). Three families, Dipteridaceae, Gleicheniaceae, and Matoniaceae were recognized. The linear seque ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matonia Pectinata
''Matonia pectinata'' is a species of herbaceous fern in the family Matoniaceae. It was first described by Scottish botanist Robert Brown in 1829. It is native from peninsular Thailand southward to Sumatra. It is most noteworthy for its pedate In biology, a pedate structure is a structure that resembles feet, or has a quality of feet. It derives from the Latin verb "pedo", meaning "to furnish with feet". Plants Botanically, the term is used to describe compound leaves, veins, or other ... fronds with as many as twenty-six primary pinnae, each with about 120 pinnate leaflets.Seward Albert Charles 1899VI. On the structure and affinities of matonia pectinata, R. BR., with notes on the geological history of the matoniacea Phil. Trans. R. Soc. Lond. B191171–209 References Ferns of Asia Gleicheniales Plants described in 1829 {{Polypodiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dipteridaceae
The Dipteridaceae is a family of ferns in the order Gleicheniales of the class Polypodiopsida. They are commonly known as umbrella ferns and contain two genera, '' Cheiropleuria'' and '' Dipteris'', with a total of nine species confined to Asia, New Guinea and northern Australia While currently a small family, they were much more abundant in the Mesozoic era, with the oldest fossils being known from the Middle Triassic of Italy, Australia and Argentina. Seven fossil genera are recognised, including '' Hausmannia'', '' Clathropteris'', '' Dictyophyllum'', '' Thaumatopteris'', '' Camptopteris'', and '' Polyphacelus''. The following diagram shows the placement of Dipteridaceae in a likely phylogenic relationship with the other two families of Gleicheniales Gleicheniales is an order of ferns in the subclass Polypodiidae (the leptosporangiate ferns). The Gleicheniales has spore records potentially as early as the Early Carboniferous, but the oldest unambiguous macrofossil record ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phanerosorus
''Phanerosorus'' is a genus of ferns in the family Matoniaceae. Species , Plants of the World Online Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew. History Following the Convention on Biological Diversity, the Royal Botanic Gardens in Kew launched Plants of the World Online i ... and the ''Checklist of Ferns and Lycophytes of the World'' accept the following species: *'' Phanerosorus major'' Diels *'' Phanerosorus sarmentosus'' (Baker) Copel. References Gleicheniales Fern genera {{Polypodiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gleicheniaceae
The forked ferns are the family Gleicheniaceae, which includes six genera and about 160 known species. The formerly independent families Dicranopteridaceae and Stromatopteridaceae are generally included in the Gleicheniaceae, whereas the Dipteridaceae and Matoniaceae, although closely related, are considered separate families by most authors.Smith ''et al.'' (2006) Description These tropical ferns are the most widespread living lineage of Gleicheniales. Their rhizomes have a "vitalized" protostele or in some taxa a solenostele. The leaves are indeterminate, with pseudodichotomously forked leaves except in '' Stromatopteris'', and free veins. ''Stromatopteris'' also differs from the other species in having an achlorophyllous and subterranean gametophyte. The sori are abaxial but not marginal and carry 5–15 exindusiate round sporangia each. These have a transverse-oblique annulus and contain 128 to 800 bilateral or globose-tetrahedral spores. The sori and sporangia mature ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albian
The Albian is both an age (geology), age of the geologic timescale and a stage (stratigraphy), stage in the stratigraphic column. It is the youngest or uppermost subdivision of the Early Cretaceous, Early/Lower Cretaceous epoch (geology), Epoch/series (stratigraphy), Series. Its approximate time range is 113.0 ± 1.0 annum, Ma to 100.5 ± 0.9 Ma (million years ago). The Albian is preceded by the Aptian and followed by the Cenomanian. Stratigraphic definitions The Albian Stage was first proposed in 1842 by Alcide d'Orbigny. It was named after Alba, the Latin name for Aube (river), River Aube in France. A Global Boundary Stratotype Section and Point (GSSP), ratified by the IUGS in 2016, defines the base of the Albian as the first occurrence of the planktonic foraminiferan ''Hedbergellidae, Microhedbergella renilaevis'' at the Col de Pré-Guittard section, Arnayon, Drôme, France. The top of the Albian Stage (the base of the Cenomanian Stage and Upper Cretaceous Series) is defined ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piedra Clavada Formation
Piedra is a hair disease caused by a fungus, which causes formation of nodules on the hair shaft.Veasey JV, Avila RB, Miguel BAF, Muramatu LH. White piedra, black piedra, tinea versicolor, and tinea nigra: contribution to the diagnosis of superficial mycosis. ''An Bras Dermatol''. 2017 May-Jun;92(3):413-416. Types include: * White piedra * Black piedra ''Piedraia hortae'' is a superficial fungus that exists in the soils of tropical and subtropical environments and affects both sexes of all ages. The fungus grows very slowly, forming dark hyphae, which contain chlamydoconidia cells and black col ... References External links {{Mycoses Mycosis-related cutaneous conditions Animal fungal diseases Human hair ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fremouw Formation
The Fremouw Formation is a Triassic-age rock formation in the Transantarctic Mountains of the Ross Depenency of Antarctica. It contains the oldest known fossils of tetrapods from Antarctica, including synapsids, reptiles and amphibians. Fossilized trees have also been found. The formation's beds were deposited along the banks of rivers and on floodplains. During the Triassic, the area would have been a riparian forest at 70–75°S latitude. Stratigraphy The Fremouw Formation is mostly Triassic in age, with the oldest rocks dating back to the latest Permian. Much of the formation is quartzose sandstone that was deposited in stream beds. It overlies the Permian Buckley Formation, which consists of coal and '' Glossopteris'' fossils. The formation is informally divided into lower, middle, and upper units. Most fossils are found in the Lower Fremouw Formation. Here, bones are preserved in fine-grained siltstones and mudstones, coarse-grained channel sandstones, and conglomerate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microdictyon (fern)
is an extinct genus of lobopodian worm characterized by its net-like sclerite armour plates, known from Cambrian deposits around the world. Soft-bodied fossils which preserve more than the sclerites are only known from the Chengjiang Lagerstätte of Yunnan, China. History ''Microdictyon'' sclerite plates have been recovered from around the globe, recovered from rock via acid dissolution which eats away at the rock but leaves behind compositionally distinct microfossils. The first of them were found in the ''Strenuella'' Limestone of Comley, England, in 1975. The genus ''Microdictyon'' was erected by Stefan Bengston, Vladimir Missarzhevsky, and S. C. Matthews in 1981, as an enigmatic net-like microfossil, based on a few isolated plates from South Kazakhstan, although this description lacked a type species and proper description, so a following publication by the same authors in 1986 corrected this. It was unknown at the time what animal could have produced it - suggestions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
