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