WebSphenophyllum is the most common during the Late Carboniferous and the Early Permian. In the Late Permian still some species occur and at the end of this period the genus gets extinct. Many species of Sphenophyllum … WebJan 1, 2014 · Hook-like teeth on the frontal margin of leaves are known (Batenburg, 1981, Barthel, 1997) only in S. priveticense, Sphenophyllum cuneifolium and Sphenophyllum emarginatum Brongniart. Teeth-like expansions on the lateral margins of leaves are known also on sterile bracts of S. myriophyllum ...
Notes . 659 - JSTOR
WebThe primary objective of this study is to reconstruct the paleofloristics of an unnamed shale of lower Middle Pennsylvanian age. The shale is periodically exposed in the highwall of the Ashboro Pit, Log Cabin Coal Company, Clay County, Indiana. This will be the first upland fossil flora to be described from the eastern margin of the Eastern Interior Basin (Illinois … Webshale are Sphenophyllum cuneifolium (Sternb.), Asterophyllites equisetiformis (Schloth.). A. sp. cf. charaeformis (Sternb.), and several leafy shoots of the Lycopodites type. The cone compression shows a series of sporangia arranged spirally around an axis which they completely conceal. Projecting beyond each sporangium and appearing to grey bathroom white tiles
Ancient Plant Fossil Blastoids in 3x4 Riker Type Display Case
WebJan 1, 2024 · A 288-cm length of core through the Low Barnsley Seam (Westphalian B) was taken from St Aidans Opencast Mine, SW of Leeds, Yorkshire, England (NGR SE 40 28) (Fig. 1) was made available for study by British Coal.At this locality the seam is composite comprising three leaves of coal (Bottom, Middle and Top) and a thin 'Special Category' … WebDescription: PP 32290 [HS] Sphenophyllum cuneifolium, Moscovian / Desmoinesian, Francis Creek Shale Member, United States of America, Illinois, Mazon Creek Region. Catalog … WebSphenophyllum majus (Bronn) Bronn Sphenophyllum emarginatum Brongniart Sphenophyllum cuneifolium Crepin Sphenophyl/um zwickaviense Storch Sphenophyllum saarense Remy Sphenophyllum cf. saxonicum Remy and Remy Sphenophyllum costae Sterzel Sphenophyllum oblongifolium (Germar and Kaulfuss) Unger 14 X X X X X X X X X … fidelity 8x