Isoetopsida Collection

Stigmaria ficoides, fossil root
This root is preserved in tough Carboniferous sandstone. Stigmaria is the name given to roots of the giant lycopod (prehistoric spore-bearing plant) Lepidodendron

Lepidodendron, fossil tree trunk
The reptilian appearance of the branch of this fossil tree is cause by the diamond-shaped pattern, which indicates the points of attachment of the leaves. This specimen is about 6cm in diameter

Sigillaria mamillaris (Brongniart), Lycopod
Part of a stem of a Sigillaria mamillaris, a lycopod, a Carboniferous plant. Upper Carboniferous; Darton, near Barnsley, South Yorkshire, Range: Genus, Carboniferous-Permian, Species, Westphalian

Selaginella kraussiana, spikemoss
Scanning electron microscope image of the female spore of Krauss spikemoss (x 150 on a standard 9 cm wide print)

Sigillaria laevigata, fossil lycopod bark
This carboniferous fossilised lycopod (prehistoric spore-bearing plants) bark specimen is 9 cm long

Cyperites bicarinatus, tree clubmoss
Leaves of tree clubmoss (Cyperites bicarinatus) dating back to the late carboniferous period, discovered at Kilmersdon, near Radstock, Somerset, England. Specimen measures about 15 cms

Bothrodendron minutifoliu, fossil clubmoss
Shown here is a fossilised leafy twig of a clubmoss originating from Carboniferous rocks near Barnsley, England

Sigillaria rugosa, fossil club moss
This section of a club moss trunk displays leaf scars where leaves grew straight out from. Club mosses could grow up to heights of 30 metres

Coal, from the late carboniferous
Coal is formed from fossil plants. The regular pattern on the surface of this 14 cm long piece is the impression of the bark of a fossil tree; Lepidodendron

Sigillaria rugosa, fossil plant
Shown here is a section of the stem of a 300 million year old Carboniferous plant, probably abundant in the Carboniferous swamplands. The stem or trunk is the most common part to be fossilised

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