Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-29T12:01:09.176Z Has data issue: false hasContentIssue false
  • English
  • Français

The Classification of the Acidaspidae

Published online by Cambridge University Press:  01 May 2009

F. R. Cowper Reed
Get access Rights & Permissions [Opens in a new window]

Extract

Since Dr. J. M. Clarke's1 attempt in 1890 to subdivide the Acidaspidae (= Odontopleuridae) by means of the characters of the occipital ring and its spines, several other methods of classification of the members of this family have been proposed. Van Ingen,2 in 1901, adopted Clarke's names for the subgenera which he raised to the rank of genera, but he slightly modified their definitions and preferred to use the name Acidaspidae for the family, as is general in Europe, dividing it into four main groups comprising six genera. Raymond,3 in 1916, was led to criticize Clarke's principle of classification, pointing out the unnatural association of species which resulted from its application, and he accordingly desired to alter the definitions of the genera as given in 1913 in the second edition of Zittel-Eastman's “Textbook of Palaeontology ” (vol. i, p. 722). Special attention was paid to the characters of the pleurae, as in Barrande's old scheme.

Type
Original Articles
Information
Geological Magazine , Volume 62 , Issue 9 , September 1925 , pp. 416 - 430
Copyright
Copyright © Cambridge University Press 1925

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

page 416 note 1 Clarke, , 10th Ann. Sep. New York State Geol. for 1890 (1891), p. 61.Google Scholar

page 416 note 2 Van Ingen, , School of Mines Quarterly (Columbia Univ.), 1901, No. 1, pp. 34–52.Google Scholar

page 416 note 3 Raymond, , Ottawa Naturaliat, vol. xxix, 1916, No. 11, pp. 135–9.Google Scholar

page 417 note 1 Richter, , Centralbl. f. Miner, etc., Jahrg, 1917, Nos. 21 and 22, pp. 462–72, text-figures.Google Scholar

page 417 note 2 The form figured by Wigand, (Zeitschr. deut. geol. Gesell., xl, 1888, p. 99, t. x, figs. 21, 22) as A. cf. ovata Emmr. does not seem to belong to this subgenus at all, but his A. mutica Emmr. is a good example of it. It seems that A. tuberculata Conr. (Hall, Palaeont., New York, vol. iii, 1861, p. 368, pi. lxxix, figs. 1–14) is a rather peculiar representative of it. Beecher has described the larval form of this species (Amer. Journ. Sc. Ser. 3., vol. xlvi, 1893, p. 144, pi. ii, figs. 1–7).Google Scholar

page 417 note 3 Etheridge, & Mitchell, , Proc. Linn. Soc. N.S. Wales, vol. xlii, 1917, p. 498, pi. xxvi, figs. 12, 13; pl. xxvii, fig. 14.Google Scholar

page 418 note 1 Raymond, , Bull. Mus. Comp. Zool. Harvard, vol. lxvii, No. 1, 1925 p. 129, pl. 8, fig. 13.Google Scholar

page 418 note 2 Raymond, , Ann. Carnegie Mus., vol. iii, 1905, p. 357, pl. xiv, figs. 4–6; ibid., vol. vii, No. 1, 1910, p. 74, pl. xviii, figs. 9–11; id. Bull. Vermont State Geol. 7th Rept., 1910, p. 234, pl. xxxvi, figs. 4–6, pi. xxxviii, figs. 9–11; id. Bull. Mus. Comp. Zool. Harvard, vol. lxvii, No. 1, 1925, p. 130.Google Scholar

page 418 note 3 Stapff, and Reck, , Sitz. Gesell. Naturf., Berlin, 1911, pp. 130–46.Google Scholar

page 418 note 4 Swinnerton, , Geol. Mag., 12. VI, Vol. II, 1915, p. 544.Google Scholar

page 418 note 5 Richter, , Senckenbergiana, Bd. i, No. 6, 1919, pp. 234–8.Google Scholar

page 418 note 6 Barrande, , Syst. Silur. Bohême, i, pp. 692–707.Google Scholar

page 419 note 1 Barrande, , op. cit. p. 735, pl. xxxix, figs. 1–11.Google Scholar

page 419 note 2 Ibid., p. 739, pi. xxxix, figs. 33–41.

page 419 note 3 Ibid., pi. xxxix, fig. 57.

page 419 note 4 Novak, , Palaeont. Abhandl., Bd. v, heft iii, 1890, p. 33.Google Scholar

page 420 note 1 Warder, , Amer. Journ. Sc., ser. 1, vol. xxxiv 1838, p. 378, fig. For other references see Raymond, Bull. Mus. Comp. Zool., vol. lx, No. 1, 1916, p. 24.Google Scholar

page 420 note 2 Barrande, , op. cit., p. 710, pl. xxxviii, figs. 1–9.Google Scholar

page 421 note 1 Ibid., p. 715, pi. xxxviii, figs. 13–21; Novak, , Palaeont. Abhandl., Bd. v, heft 3, 1890, p. 33, t. ii [xx], fig. 9.Google Scholar

page 421 note 2 Novak, , Beitr. Palaeont. Oesterr. Ung., Bd. iii, 1881, p. 42, t. iii [x], figs. 7–11.Google Scholar

page 421 note 3 Etheridge, and Mitchell, , Proc. Linn. Soc. N.S. Wales, 1896, pt. iv, p. 717.Google Scholar

page 421 note 4 Ibid., pl. lv, fig. 2.

page 421 note 5 Richter, , Jahrb. Nassau Verein. Natur., Bd. lxx, 1918, p. 144, text-fig. 1.Google Scholar

page 421 note 6 Barrande, , op. cit., p. 751, pl. xxxix, figs. 20, 21.Google Scholar

page 422 note 1 Novak, , Palaeont. Abhandl., Bd. v, heft 3, 1890, p. 31, t. ii(xx), figs11–15, t. iv(xxii), fig 6.Google Scholar

page 422 note 2 Barrande, , op. cit. p. 708, pl. xxxvi, figs. 10–22.Google Scholar

page 422 note 3 Ibid., p. 728, pl. xxxviii, figs. 22–4.

page 422 note 4 Ibid., p. 726, pl. xxxix, figs. 29–32.

page 423 note 1 Novak, , Beitr. Palaeont. Oesterr. Ung., Bd. iii, 1881, p. 42, t. x(iii), figs. 7–11.Google Scholar

page 424 note 1 Lake, , Q.J.G.S., vol. lii, 1896, p. 236, pl. vii, fig. 5; Richter, Jahrb. Nassau Verein. Natur., bd. 70, 1918, p. 144.Google Scholar

page 424 note 2 Reed, , Lower Palaeoz. Trilob. Girvan, pt. iii, p. 114, pi. xvi, fig. 1.Google Scholar

page 424 note 3 Ibid., p. 116, pl. xvi, figs. 4, 5.

page 425 note 1 Hall, and Clarke, , Palaeont. New York, vol. vii, 1888, p. 71, pl. xvi, B, figs. 15–18.Google Scholar

page 425 note 2 Barrande, , op. cit., p. 735, pi. xxxix, figs. 1–11.Google Scholar

page 425 note 3 Warder, , Amer. Journ. Sc., vol. xxxiv. 1838, p. 377, figure; Van Ingen, op. cit., 1901, p. 42, pl., figs. 3, 3a. Weller, Bull. No. IV, pt. ii, Nat. Hist. Surv. Chicago Acad. Sc., 1907, p. 255, pi. xxiii, figs. 1, 2.Google Scholar

page 426 note 1 Goldfuss, , Jahrb., 1843, heft v, p. 544, pl. iv, fig. 1. Richter, Centralbl. f. Miner. Geol. Jahrg, 1917, p. 468, text-figs. 9a–c, 10.Google Scholar

page 426 note 2 Conrad, , 5th Ann. Rept. New York, 1841, p. 48; Hall, Palaeont. New York vol. iii, 1861, p. 371, pl. lxxix, figs. 15–19; Clarke, 10th Ann. Rept. New York State Geol., 1891, pl. i, figs. 5, 6; Van Ingen, op. cit., 1901, p. 37, text-tig. 7.Google Scholar

page 426 note 3 Murchison, , Silur. Syst., 1839, p. 658, pl. xiv, fig. 15; Lake, op. cit, p. 236, pl. vii, fig. 5.Google Scholar

page 426 note 4 Barrande, , op. cit., p. 720, pl. xxxvii, figs. 1–11.Google Scholar

page 426 note 5 Ibid., p. 707, pl.

page 427 note 1 Hawle, and Corda, , Prodr. Mon. Böhm. Trilob., 1847, p. 34, t. i, fig. 1.Google Scholar

page 427 note 2 Barrande, , op. cit., p. 716, pl. xxxvi, figs. 1–9, pl. xxxvii, figs. 25–7.Google Scholar

page 427 note 3 Etheridge, and Mitchell, , Proc. Linn. Soc., N.S.W., vol. xlii, pt. iii, 1917, p. 498, pi. xxvi, figs. 12, 13; pi. xxvii, fig. 14.Google Scholar

page 427 note 4 Etheridge, and Mitchell, , Proc. Linn. Soc., N.S.W., pt. iv, 1896, p. 715, pl. liii, fig. 10; pl. liv, figs. 1–5.Google Scholar

page 427 note 5 Raymond, , Bull. Mus. Comp. Zool. Harvard, vol. xlvii, No. 1, 1925, p. 129, pl. 8, fig. 13.Google Scholar

page 428 note 1 Reed, , Low. Pal. Trilob. Girvan, pt. iii, p. 142.Google Scholar

page 429 note 1 Etheridge, and Mitchell, , op. cit., pt. iv, 1896, p. 707, pi. 1, figs. 8, 9 i pl. li, figs. 1–7; pl. liii, fig. 9.Google Scholar

page 429 note 2 Hall, and Clarke, , Palaeont. New York, vii, 1888, p. 69, pl. xvib, figs. 1–13.Google Scholar

page 429 note 3 Clarke, , Bull. 107 New York State Mus., 1907, p. 171, text-figs.Google Scholar

page 429 note 4 Etheridge, and Mitchell, , op. cit., p. 705, pl. lii, figs. 6, 7; pl. liii, figs. 4–7.Google Scholar