Biogeography
Biogeography
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The genus Onoclea
The genus Onoclea
Today, we only have one species of Onoclea in the world, Onoclea sensibilis, But we have half a dozen species present in the fossil record.
A map showing the distribution of various Onoclea fossils across the northern hemisphere.
Fossil Species and Record
Fossil Species and Record
Onoclea herbidica.pdfOnoclea hebraidica
Description (as translated from Latin in Google Translate): O. pinnate leaf, oblong or linear fins, pinnatifid, lobes rounded, denticulate or entire; with the nervation of Dictyopterid composite exappendiculate, the primary nerves subrectally prominent, the secondary nerves thin and curved, coming out at an acute angle; Tertiary nerves with very short dictyodromes, Dictyopterid spots 2-3 seriate, unequal.
Onoclea_inquirenda.pdfOnoclea inquirenda
Onoclea_minima.pdfOnoclea minima
The PDF Images got corrupted somehow, so here is a crappy screenshot.
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