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XXVII.—Scottish National Antarctic Expedition, 1902–1904: Cambrian Organic Remains from a Dredging in the Weddell Sea

Published online by Cambridge University Press:  06 July 2012

W. T. Gordon
W. T. Gordon
Affiliation:
Reader in Geology, University of London, King's College.
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Extract

From a biological point of view considerable interest must always attend any investigation of the earliest known organisms, and, although we may legitimately infer that a flora and fauna existed prior to Cambrian times, the organisms preserved for us in rocks of that age constitute, at present, the first chapter of palæontological history. For this reason alone the Archæocyathinæ are important, since they form part of the Lower Cambrian fauna. When, however, we consider that the genera included in the group are very distinct from one another (indicating that the family was probably of considerable antiquity even in those early times), that the types have, as far as we know, a wide geographical distribution, and that to certain skeletal characters usually associated with the Porifera they unite others more common among the Cœlenterata, interest is still further stimulated. On the other hand, although recorded in great abundance from several widely separated localities, they are not, as a rule, common fossils in Cambrian strata, and consequently the group has not received much attention.

Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 52 , Issue 4 , 1921 , pp. 681 - 714
Copyright
Copyright © Royal Society of Edinburgh 1921

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References

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page 683 note † British Antarctic Expedition, 1907–9, “Geology,” vol. i, pp. 235 et seq.

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page 687 note ‡ Geology of Canada, “New Species of Lower Silurian Fossils,” p. 3.

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page 692 note † Bornemann, loc. cit., p. 57; and Geol. Zeitschr., 1854, p. 704.

page 692 note ‡ Calculated by measurement from Bornemann, loc. cit., Taf. xii, figs. 6a, 6b.

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page 695 note * Geol. Zeitschr., 1883.

page 697 note * Mem. Roy. Soc. South Australia, vol. ii, part ii, 1910.

page 698 note * “Verstein. Sardinien,” Nova Acta der Ksl. Leop.-Carol. Deut. Akad. der Nat., vol. lvi, 1891, pl. ii.

page 699 note * Mem. Roy. Soc. South Australia, vol. ii, part ii, 1910.

page 701 note * Lat. fultus, supported.

page 702 note * Gk. endutos, clothed.

page 705 note * Mem. Roy. Soc. S. Australia, vol. ii, part ii, 1910, text-fig. 9.

page 708 note * British Antarctic Expedition, 1907–9, “Geology,” vol. i, p. 240.

page 708 note † Ibid., vol. ii, pp. 81–83.

page 708 note ‡ Bruce, Weddell Sea position, 62° 10′ S., 40° 20′ W., Scottish National Antarctic Expedition, 1902–4; Shackleton, Beardmore Glacier position, 83° 42′ S., 171° 30′ E., British Antarctic Expedition, 1907–9, “Geology,” vol. i, p. 235.