Contributions to the Paleobotany of Peru No. 4
Contributions to the Paleobotany of Peru No. 4
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Upsala., vol. 7, pp. 19-71, pis. 1-6, 1906.
Digitized by Google Tertiary Flora of Chile i 19 upper Oligocene or lower Miocene in age and would consider this flora as probably of upper Eocene age and the flora of the Chilean coal measures, as previously stated, lower Mio- cene in age and corresponding to the Aquitanian or Burdi- galian stages of Europe.
NEW OR NOTEWORTHY SPECIES Pteridophyta Class LEPTOSPORANGIAT^ Order POLYPODIALES Family CYATHEACEiE Genus Cyathoides Berry, gen. nov.
Cyathoides... thyrsopterioides Berry, sp. nov.
Plate I— Figs. 1-3 These fragments undoubtedly belong to the family Cy- atheacese. Since, however, the different members of the family show much convergence in foliar characters, and the tribes are differentiated upon soral and sporangial features not preserved in the fossil, it becomes impossible to reach a conclusive opinion as to their generic allocation. In so far as the meager material permits a judgment the fossil agrees more closely with the genus Thyrsopteris than with the other genera of the family, but in the absence of fruiting material I hesitate to go beyond recognizing this resemblance in the specific name chosen for the species, since Thyrsopteris is now monotypic and confined to the Juan Fernandez islands, and most of the fossil forms that were formerly referred to this genus are now regarded as being based upon too slender evidence.
What to read after Contributions to the Paleobotany of Peru No. 4?
You can find similar books in the "Read Also" column, or choose other free books by Edward Wilber Berry to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Upsala., vol. 7, pp. 19-71, pis. 1-6, 1906.
Digitized by Google Tertiary Flora of Chile i 19 upper Oligocene or lower Miocene in age and would consider this flora as probably of upper Eocene age and the flora of the Chilean coal measures, as previously stated, lower Mio- cene in age and corresponding to the Aquitanian or Burdi- galian stages of Europe.
NEW OR NOTEWORTHY SPECIES Pteridophyta Class LEPTOSPORANGIAT^ Order POLYPODIALES Family CYATHEACEiE Genus Cyathoides Berry, gen. nov.
Cyathoides... thyrsopterioides Berry, sp. nov.
Plate I— Figs. 1-3 These fragments undoubtedly belong to the family Cy- atheacese. Since, however, the different members of the family show much convergence in foliar characters, and the tribes are differentiated upon soral and sporangial features not preserved in the fossil, it becomes impossible to reach a conclusive opinion as to their generic allocation. In so far as the meager material permits a judgment the fossil agrees more closely with the genus Thyrsopteris than with the other genera of the family, but in the absence of fruiting material I hesitate to go beyond recognizing this resemblance in the specific name chosen for the species, since Thyrsopteris is now monotypic and confined to the Juan Fernandez islands, and most of the fossil forms that were formerly referred to this genus are now regarded as being based upon too slender evidence.
What to read after Contributions to the Paleobotany of Peru No. 4?
You can find similar books in the "Read Also" column, or choose other free books by Edward Wilber Berry to read onlineMoreLess
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