Pecopteris is a very common form genus of leaves. Most Pecopteris leaves and fronds are associated with the marattialean tree fern Psaronius. However, Pecopteris-type foliage also is …

Pecoteris sp. is the foliage of a tree fern. Pecopteris grew on Psaronius which was one of the most common fossil tree ferns. Psaronius reached height of about ten meters (32 feet) and …

Pecopteris sp. OPC 9000-7957 - Close-upClose-up color photograph with scalebar of the fern pinnae/leaves of a Pecopteris from Rhode Island that "metamorphosed" or stretched by …

Pecopteris is a fern from the order Pteridophyta, which no longer exists today. This plant thrived almost 323 million years ago, during the Pennsylvanian period, a time when the forests were …

Fern fossils may be found in rocks that were deposited during both the Carboniferous and Permian Periods as impressions, compressions, casts and molds.

Nov 13, 2023 · Fossilised true ferns (Pecopteris sp.) preserved in siderite concretions from the Mazon Creek Lagerstätte (Illinois) presented a unique opportunity to characterise the organic …

Pecopteris sp. Division Pteridophyta. Geological Time: Pennsylvanian (~300 m.y.a.) Size: Plant fossil is 118 mm long by 18 mm across (maximum); Nodule: 130 mm by 62 mm nodule half. …

Pecopteris sp. (fern) from Oklahoma As part of a three-year grant funded by the National Science Foundation, the Sam Noble Museum is participating with 33 other institutions under the …

Pecopteris sp. fern leaf - Mazon Creek. Calamites sp. stem segments (prepared specimen) - Mazon Creek. Annularia sphenophylloides - Mazon Creek. Pecopteris sp. fern leaf - Mazon …

Pecopteris Bucklandi, Pecopteris oreopteridis, and Pecopteris Cistii, are closely allied species, which it is difficult to separate, especially from fragmentary specimens. The first has large, …