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IV.—On some Fossils found in the Eophyton Sandstone, at Lugnås, in Sweden.1

  • J. G. O. Linnarsson
Extract

No other part of Sweden affords more favourable opportunities for studying the earliest fossiliferous deposits and their relations to each other than Vestrogothia, with its unusually complete, undisturbed, and, in many natural sections, exposed series of strata. Its two lowest principal layers, consisting of sandstone and alum-slate, are to be referred to the Cambrian system, if that system, as proposed by Sir Charles Lyell, Salter, and others, be extended over the “Primordial zone,” which is easily distinguished by its organic remains from the overlying Silurian deposits. This sandstone has long been known as the oldest stratum of Vestrogothia above the Fundamental Gneiss. Traces of seaweeds were found in it by our earlier geologists, and caused it to receive the name, still commonly used, of Fucoid sandstone. Deposits of the same period are distributed over large parts of Scandinavia; and Professor Angelin, who, like his predecessors, had found them to be the oldest portion of the whole “Transition formation” of Scandinavia, included them all in his regio Fucoidarum, no other Fossil having as yet been found in them. Norwegian authors have proposed the denomination “Sparagmite stage,” for the rock prevailing in Norway, which has not as yet afforded any fossils, a term also adopted by Professor Torell.

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1

Translated from the ofversigt af Kongl. Vetenskapts Akademiens Förhandlingar March 10, 1869.

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page 394 note 1 Bidrag till Sparagmitetagens geognosi och palæontologi. Lund, 1868.

page 394 note 2 Davidson, , On the Earliest Forms of Brachiopoda, etc., Geol. Mag. 1868.

page 394 note 3 Russia in Europe and the Ural Mountains, Vol. i. p. 16.

page 395 note 1 L. c., p. 2.

page 395 note 2 See Th. Belt, On the “Lingula-flags,” or “Festiniog Group” of the Dolgelly District. Geol. Mag. 1867, p. 493 et seq.

page 395 note 3 Kjerulf, Stenriget og Fjeldlæren, p. 212.

page 395 note 4 Sjögren, A., Anteckningar om Oeland. Ofversigt af K. Vet. Akad. Förhandl. 1851.

page 396 note 1 Pronounce: Lungnose.

page 396 note 2 Anteckningar i Physik och Geognosi, Vol. iv. p. 48, 49 (1828).

page 396 note 3 Anteckningar, Vol. v. p. 67 (1831).

page 396 note 4 Russia in Europe, etc., vol i. p. 16.* Siluria, 4th ed., p. 347.

page 396 note 5 Bidrag till kännedomen om Vestgötabergens byggnad. Lund, 1868.

page 397 note 1 P. 49.

page 397 note 2 Vol. v., p. 67; Vol. vi., p. 60.

page 399 note 1 Bidr. till Sparagmitetagens geogn. och pal., p. 36, t. ii. f. 3, t. iii. f. 1–3.

page 399 note 1 In the figure the inner part of the right side appears more depressed than in the original.

page 402 note 1 Acadian Geology, second ed. p. 458.

page 403 note 1 Palæontology of New York, vol. ii., p. 23. 24.

page 403 note 2 Palæozoic Fossils of Canada, vol i., p. 101.

page 403 note 3 On the Fossils of the genus Rusophycus, Canadian Naturalist, Oct. 1864, 363.

page 403 note 4 According to the derivation the name is to be written Rysophycus, or, with Eichwald (Lethæa Rossica, vol. 1, p. 54) Rysophycus.

page 405 note 1 Bigsby's Thesaurus Siluricus, p. 2.

page 405 note 2 Voyage dans l'Amérique méridionale, iii., 2, p. 30, pl. 1, f. 1, 2; 1842.—Marie Rouault altered the name to Fræna, Bull. Soc. Géol. France, 2 Sér. Vol. vii. p. 729.

page 406 note 3 Bidrag till Vestergötlands Geologi. Ofvers. af K. Vet. Akad. Forh. 1868.

1 Translated from the ofversigt af Kongl. Vetenskapts Akademiens Förhandlingar March 10, 1869.

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Geological Magazine
  • ISSN: 0016-7568
  • EISSN: 1469-5081
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