Paleozoic Voltziales
Paleozoic Voltziales
Paleozoic Voltziales
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Fossil History of Plants<br />
Lecture 12<br />
Rise of the conifers - <strong>Paleozoic</strong><br />
<strong>Voltziales</strong>
Five major groups of vascular plants
Not Big<br />
Like these<br />
Mesozoic Conifers<br />
Meanwhile on the dryer slopes
Walchian conifers (<strong>Voltziales</strong>)<br />
(2 – 3 M tall)<br />
small<br />
Originally named Lebachia –Now Emporia and others
<strong>Voltziales</strong><br />
Walchian conifers<br />
U. Penn. & L. Permian<br />
conifers
Emporia leafy shoot<br />
and<br />
woody stem
Emporia seed cone and seeds<br />
with embryos
Voltzialean Conifer Phylogeny
Walchian conifer leafy shoots<br />
Hanskerpia
Walchian conifer leafy shoot anatomy<br />
Hanskerpia
Walchian conifer leaf structure and anatomy<br />
Hanskerpia
Walchian conifer (Barthelia)
Ideas of conifer cone evolution from Rudolf Florin 1930’s-1964
Conifer cone evolution and phylogeny<br />
R. Florin – 1930s-1960s<br />
Missippian & Pennsylvanian<br />
Cordaitales<br />
Pennsylvanian to Permian<br />
Conifers (<strong>Voltziales</strong>)<br />
Jurassic/Cretaceous to Recent<br />
Conifers (modern families)<br />
Gifford & Foster, 1989
a<br />
Pennsylvanian<br />
Permian<br />
Triassic<br />
Jurassic<br />
*<br />
Cretaceous<br />
Eocene<br />
Fossils,<br />
Stratigraphy<br />
&<br />
Conifer<br />
Phylogeny<br />
*<br />
*
Pattern of Modern Conifer Phylogeny<br />
Living plants Fossil Record<br />
Rai et al., 2008<br />
Triassic<br />
Jurassic<br />
Triassic?<br />
Cretaceous
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