Earth and Environmental Science Transactions of The Royal Society of Edinburgh: Volume 64 - 1959-1960 On the Structure of “Samaropsis Scotica” Calder (Emended) and “Eurystoma Angulare” Gen. ET SP. Nov., Petrified Seeds from the Calciferous Sandstone Series of Berwickshire

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Earth and Environmental Science Transactions of The Royal Society of Edinburgh
ISSN: 1755-6910

EISSN: 1755-6929

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1959-1960 On the Structure of “Samaropsis Scotica” Calder (Emended) and “Eurystoma Angulare” Gen. ET SP. Nov., Petrified Seeds from the Calciferous Sandstone Series of Berwickshire

Volume 64 - Issue 12 - 1960

Contents

Research Article

XII.—On the Structure of Samaropsis scotica Calder (emended) and Eurystoma angulare gen. et sp. nov., Petrified Seeds from the Calciferous Sandstone Series of Berwickshire
Albert G. Long
Published online by Cambridge University Press:

30 May 2017, pp. 261-280
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The Lower Carboniferous seed Samaropsis scotica Calder has been re-investigated from new material and assigned to a new genus Lyrasperma. It is shown to have a nucellar apex with a pollen chamber and a funnel-like structure interpreted as an expanded salpinx. The free parts of the two integumental lobes diverge as apical horns; there is therefore no micropyle. Eurystoma angulare gen. et sp. nov. possesses a similar nucellar apex but is usually quadrangular in section and has four apical lobes. The new genera are placed in the group Lagenostomales although the expanded salpinx is a character new to that group.

Front matter

TRE volume 64 issue 12 Cover and Front matter
Published online by Cambridge University Press:

30 May 2017, p. f1
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TRE volume 64 issue 12 Cover and Back matter
Published online by Cambridge University Press:

30 May 2017, p. b1
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Earth and Environmental Science Transactions of The Royal Society of Edinburgh

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1959-1960 On the Structure of “Samaropsis Scotica” Calder (Emended) and “Eurystoma Angulare” Gen. ET SP. Nov., Petrified Seeds from the Calciferous Sandstone Series of Berwickshire

Research Article

XII.—On the Structure of Samaropsis scotica Calder (emended) and Eurystoma angulare gen. et sp. nov., Petrified Seeds from the Calciferous Sandstone Series of Berwickshire

Front matter

TRE volume 64 issue 12 Cover and Front matter

Back matter

TRE volume 64 issue 12 Cover and Back matter

Earth and Environmental Science Transactions of The Royal Society of Edinburgh

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1959-1960 On the Structure of “Samaropsis Scotica” Calder (Emended) and “Eurystoma Angulare” Gen. ET SP. Nov., Petrified Seeds from the Calciferous Sandstone Series of Berwickshire

Research Article

XII.—On the Structure of Samaropsis scotica Calder (emended) and Eurystoma angulare gen. et sp. nov., Petrified Seeds from the Calciferous Sandstone Series of Berwickshire

Front matter

TRE volume 64 issue 12 Cover and Front matter

Back matter

TRE volume 64 issue 12 Cover and Back matter