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The Carboniferous (/ ˌ k ɑːr b ə ˈ n ɪ f ər ə s / KAR-bə-NIF-ər-əs) [6] is a geologic period and system of the Paleozoic era that spans 60 million years from the end of the Devonian Period 358.86 Ma (million years ago) to the beginning of the Permian Period, 298.9 Ma.
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.
Like many extinct trees, psaronius is known by various individual fossil parts that are not always found together. The main parts include: the root mantle, the stem, the fronds, the coziers (fiddleheads), and leaves with spores. Tubiculites, the fossilized impressions of the rootlets of the Carboniferous fern called Psaronius.
These trees grew up to 100 feet (30 m) tall and stood in dry areas as well as wetlands. Brackish water mussels and crustacea are found frequently between the roots of these trees. Cordaites fossils are most commonly found in rock sections from the Upper Carboniferous) of Europe and the Americas. Leaves of Cordaites lungatus
Coal forest of tree ferns and lycopod trees, in a 1906 artist's rendering. The coal forests seem to have been areas of flat, low-lying swampy areas with rivers flowing through from higher, drier land. [4] When the rivers flooded, silt gradually built up into natural levees. Lakes formed as some areas subsided, while formerly wet areas became ...
This genus is known in the fossil records from as early as the Middle Devonian or the Late Carboniferous period [1] but dwindled to extinction in the Early Permian period (age range: from 383.7 to 254.0 million years ago). [2] Fossils are found in Great Britain, United States, Canada, China, Korea, Tanzania and Zimbabwe. [3]
Coal forests continued after the Carboniferous rainforest collapse. These plant fossils are from one of those forests from about 5 million years after the CRC. However, the composition of the forests changed from a lepidodendron-dominated forest to one of predominantly tree ferns and seed ferns.
Stigmaria is a form taxon for common fossils found in Carboniferous rocks. [1] They represent the underground rooting structures of arborescent lycophytes such as Sigillaria and Lepidodendron under the order Lepidodendrales .