Douropteris P.Correia, Šimůnek, Cleal et Sá
Plant Fossil Names Registry Number: PFN000148
Act LSID: urn:lsid:plantfossilnames.org:act:148
Reference: Correia, P., Šimůnek, Z., Cleal, C. J. & Sá, A. A. (2018): Douropteris alvarezii gen. nov., sp. nov., a new medullosalean pteridosperm from the Late Pennsylvanian of Portugal. – Geological Journal 2018: 1–11 (of Early view).
Page of description: [3 of 11 of Early view]
Douropteris alvarezii P.Correia, Šimůnek, Cleal et Sá
Frond at least bipinnate bearing pinnules of variable shape and size. Pinnules spaced, marginally non‐decurrent, and slightly retracted at the base; large and lobate to pinnately lobed at the lower part of pinnae tapering gradually towards smaller and non‐lobed or entire margined pinnules at distal parts of the pinnae. Lobate pinnules with generally poorly lobed margins and prominent basal lobes, having one remarkably more developed basal lobe. Midvein very broad and basally decurrent. Lateral veins very irregular and strong, with various ramified veins entering each lobe of lobate pinnules. Intercalated pinnules absent.
Named after the Douro Basin.
Plant fossil remain
macro- and meso-fossils-embryophytes except wood