: Geology & History/Archaeology
Disgrifiadau
Llun: 1
Geographical sections through coalfield
Seed fern, frond and stems of lepidodrendon and calamites
Llun: 2
Geographical sections through coalfield
Taff Vale coal measures
Llun: 3
Geographical sections through coalfield
Dichotomous leaf venation and spiral leaf insertion. Coal fossils, seed fern, club moss
Llun: 4
Geographical sections through coalfield
Seed fern frond ?mariopteris. Taff Vale
Llun: 5
Calamites
Calamites. Carboniferous equisetales, from pennant sandstone pith cast South wales November 1968
Dyddiad: November 1968
Llun: 6
Calamites
Short internodes in calamites 1971 Taff
Dyddiad: 1971
Llun: 7
Calamites
Calamites node. In modern horsetails the ridges alternate. Pith cast in Pennant sandstone. 250 million years old. Upto 100foot high, Hollow stems. Mud cast of pith cavity No U.Bs
Llun: 8
Calamites
Calamites. 2 nodes and 1 branch scar (carboniferous)
Llun: 9
Calamites
Calamites. Selection of fossils. Taff Vale 1971
Dyddiad: 1971
Llun: 10
Calamites
Fossilised tree trunks from carboniferous. Swansewa museum.
Llun: 11
Stigmaria, Lepidodendron, Sigillaria
Stigmarian axis South wales coalfield Taf Vale
Llun: 12
Stigmaria, Lepidodendron, Sigillaria
Stigmaria. Scars of roots in neat spirals 1971
Dyddiad: 1971
Llun: 13
Stigmaria, Lepidodendron, Sigillaria
4 patterns in fossil lycopod, sigillaria and lepidodendron
Llun: 14
Geology, seamouth Trwyn-y-Witch
Dark chert pebbles and TS coral (left) Witch Point, Southerndown
Llun: 15
Fanore Beach - Burren. Limestone and fossils
Fossil goniatite-calcite. Black from manganese, 2006
Dyddiad: 2006
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Cysylltwch â Ni
I wneud cais i dynnu i lawr neu riportio cynnwys hiliol, sarhaus neu niweidiol mewn unrhyw ffordd arall.
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