Acrogenotheca ramificata Naugolnykh
Plant Fossil Names Registry Number: PFN001915
Act LSID: urn:lsid:plantfossilnames.org:act:1915
Authors: S. V. Naugolnykh
Genus: Acrogenotheca Naugolnykh
Page of description: 1388
Illustrations or figures: pl. 2, figs 1–6, pl. 3, figs 1–6, pl. 4, figs 1–6, pl. 5, figs 1–5, pl. 6, figs 1–5
Name is type taxon for
Holotype 3773(11)/318(92), Geological Institute, Russian Academy of Sciences, Moscow, Russia
Figures: figs 5–7, pl. 2, figs 1–6, pl. 3, figs 1–6, pl. 4, figs 1–6, pl. 5, figs 1–5, pl. 6, figs 1–5
Homosporous eusporangiate fern with compound pinnate leaves with reduced leaf lamina or even without leaf lamina. Lateral veins with hydathods. Some lateral veins of last order segments (on average, two or three of nine–ten veins) having terminally positioned synangia, consisting of four marginally fused sporangia. Spores rounded or ovoid in outlines, monolete, with smooth sporoderm, about 25 μm in diameter.
From the Latin ramificatus (branching), after branching lateral veins of fertile segments with a reduced leaf lamina.
Chekarda 1 locality, Bed 10
Plant fossil remain
macro- and meso-fossils-embryophytes except wood