Page:Pennsylvanian invertebrates of the Mazon Creek Area, Illinois Eurypterida.djvu/14

Konecny, Michael Moore, and Harry C. Witmer for the loan of their specimens. For the loan of other specimens used in this study I wish to thank the United States National Museum, through Dr. G. Arthur Cooper and Dr. Henry B. Roberts; the Museum of Comparative Zoology, through Dr. Harry B. Whittington and Dr. Donald Baird; the Princeton University Museum, through Dr. B. F. Howell; and the Peabody Museum, through Dr. Carl O. Dunbar. Mr. Matthew Nitecki, of the Walker Museum, University of Chicago, kindly lent the specimen of Adelophthalmus mansfieldi (C. E. Hall) shown in figure 51. My wife, Virginia Kjellesvig-Waering, has been of constant and most valued assistance, particularly in photographing the specimen of Mazonipterus cyclophthalmus.

Class Merostomata Dana, 1852

Subclass Eurypterida Burmeister, 1843

Superfamily Eurypteracea Burmeister, 1845

Family Hughmilleriidae Kjellesvig-Waering, 1951

Genus Adelophthalmus Jordan and Meyer, 1854

Adelophthalmus mazonensis (Meek and Worthen)
Figures 44–50

Eurypterus (Anthraconectes) mazonensis Meek and Worthen, 1868, Amer. Jour. Sci., 46, pp. 19–22; 1868, Geol. Surv. Illinois, 3, pp. 544–547; Miller, 1877, Am. Palaeoz. Foss., p. 209; J. Hall, 1884, 2nd Geol. Surv. Pennsylvania, Rept. Progr., PPP, pp. 24–28, figs. 2, 3; Lesley, 1889, 2nd Geol. Surv. Pennsylvania, Rept. P4, 1 (A–M), pp. 235–236; Woodward, 1907, Geol. Mag., Dec. V, 4, p. 278; Clarke and Ruedemann, 1912, New York St. Mus., Mem., 14, pp. 223–226, pl. 26, fig. 1, text figs. 50–51; O'Connell, 1916, Buffalo Soc. Nat. Sci., Bull., 11, p. 42; Grabau, 1920, Geol. Surv. China, Bull., 2, p. 65; Diener, 1924, Foss. Cat., I, Animalia, 25, Eurypterida, p. 20; Pruvost, 1930, Mus. Roy. Hist. Nat. Belg., Mem., 44, pp. 193–194; Moore, 1936, Geol. Assoc, Proc, 47, p. 364; Shimer and Shrock, 1944, Index Foss. N. Amer., p. 707, pi. 299, figs. 8, 9.

Eurypterus mazonensis (Meek and Worthen) Miller, 1877, Am. Palaeoz. Foss., p. 217; Woodward, 1888, Geol. Mag., Dec. III, 5, p. 419; Miller, 1889, N. Amer. Geol. Pal., p. 548; Laurie, 1895, Roy. Soc. Edinburgh, Trans., 37, p. 520; Weller, 1898, U. S. Geol. Surv., Bull., 153, p. 269; Clarke, 1909, New York St. Mus., Bull., 133, p. 37; Pruvost, 1911, Soc. Geol. Nord, Ann., 40, p. 300; Woodward, 1913, Geol. Mag., Dec. V, 10, p. 298; Stainier, 1915, Geol. Soc. London, Quart. Jour., 71, p. 642; Pruvost, 1919, Mém. Carte géol. dét. France, p. 327.