Alethopteris Collection

Alethopteris lonchitica, fossil seed fern
Shown here is a frond of the seed fern Alethopteris, specimen originating from Carboniferous rocks near Barnsley, England

Alethopteris zeilleri tree on white background
Alethopteris zeilleri is a foliar morphospecies tree from a medullosalean plant that grew widely in the Stephanian and Early Permian of tropical Laurasia

Alethopteris seed fern fossil C018 / 9379
Alethopteris seed fern fossil. Slab of coal shale containing a fossilised specimen of an Alethopteris seed fern. This specimen dates from around 300 million years ago

Alethopteris seed fern fossil C018 / 9380
Alethopteris seed fern fossil. Close-up of a slab of coal shale containing a fossilised specimen of an Alethopteris seed fern

Alethopteris serli (Brongniart), Pteridosperm
Part of a frond of Alethopteris serli, a Pterisosperm, a plant from the Upper Carboniferous, Newcastle-on-Tyne. Range: Genus, Carboniferous; species, Westphalian

Alethopteris aquilinus, fossil plant
This fossilized specimen of Alethopteris aquilinus is from Bradwell Wood, Staffordshire, England

Fossil leaves of Alethorpteris lonchitidis
Fossil leaves of the seed plant Alethopteris lonchitidis, found in a quarry near Whiteheaven, Cumberland. These plants are particularly frequent in the Upper Carboniferous

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