SYNONYMIC REFEEENCES. 8S 



Present reference. 



perpasta subquadrata [Nisusia (Jamesella)], Walcott [1905a, p. 255] Nisusia (Jamesella) perpasta subquadrata. 



perpasta subquadrata [Orthis], Pompeckj [1896b, p. 516] Do. 



perugata [Kutorgina], Walcott [1905a, p. 310] Kutorgina perugata. 



petalon [Lingula], Bomemann [1891, p. 438] Obolus? meneghinii. 



Davidson [1868, p. 308] Does not equal Obolus? meneghinii. 



Davidson [1871, p. 337] Do. 



phaon [Obolus (Lingulella)], Walcott [lS9Sb, pp. 410-411] Lingulella phaon. 



pheres [Obolus], Walcott [1905a, p. 328] Obolus pheres. 



Philhedra von Huene [1899a, pp. 146-147] Philhedra. 



von Huene [1899b, pp. 216-218 and 297-298] Do. 



Koken [1889, pp. 465 and 467] Do. 



Walcott [1908e, PL XI, and pp. 142 and 147] Do. 



Philhedra? columbiana von Huene [1899b, pp. 216 and 298] Philhedra columbiana. 



Philhedra columbiana Walcott [1908c, PI. I, figs. 5 and 5a] Do. 



phillipsi [Kutorgina cingulata], Matley [1902, pp. 145-147] Micromitra (Paterina) phillipsi. 



phillipsi [Obolella?], Davidson [1866, pp. 62-63] Do. 



phillipsi [Obolella], Holl [1865, p. 102] Do. 



Phillips [1871, p. 68] - Do. 



phillipsi [Obolellus?], Roemer [1876, PI. XI, figs. 6a-d] Do. 



phillipsia [Obolella], Dall [1877, p. 41] Do. 



pileolus [Discina], Davidson [1868, pp. 312-313] Orbiculoidea pileolus. 



Davidson [1871, p. 344] Do. 



(Hicks MS.) Salter [lS66a, p. 285] Do. 



pileolus? [Discina], Hicks [1871, PI. XV, figs. 12 and 12a] Stenotheca pileolus, a gastropod. 



pileolus [Orbiculoidea], Hall and Clarke [1892c, p. 137] Orbiculoidea pileolus. 



pinnaformis [Lingula], Owen [1852, p. 583] Lingulella (Lingulepis) acuminata. 



pinnaformis [Lingulems], Hall [1863, pp. 129-130, PL VI, figs. 12 and 13]. Obolus matinalis. 



Hall [1863, pp. 129-130, PL VI, figs. 14-16] Lingulella (Lingulepis) acuminata. 



Hall [1867, p. 107, PL I, figs. 12 and 13] Obolus matinalis. 



Hall [1867, p. 107, PL I, figs. 14-16] Lingulella (Lingulepis) acuminata. 



Whitfield [1880, p. 335] Do. 



Whitfield [1882, pp. 169-170] . Do. 



pinnaformis [Lingula], Hall [1862, p. 435, and fig. 3, p. 21] Do. 



pinniformis [Lingulepis], Dwight [1886, p. 208] Do. 



Grabau and Shimer [1907, p. 193] Do. 



Hall and Clarke [1892a, p. 232] Do. 



Hall and Clarke [1892b, p. 548] Do. 



Hall and Clarke [lS92c, p. 60] Do. 



Meek and Hayden [1865, pp. 2-3] Do. 



Schuchert [1897, p. 260] Do. 



plana [Ungula], Pander [1830, pp. 59 and 163] Obolus apollinis. 



plana or convexa [Ungula], Pander [1830, p. 163] Do. 



plana retroflexa [Clitambonites (Gonambonites)], Matthew [1895b, p. 267] . . Billingsella retroflexa. 



planus retroflexus [Clitambonites], Schuchert [1897, p. 184] Do. 



Platyceras etheridgei Tate [1892, p. 184] Micromitra (Paterina) etheridgei. 



Plectorthis Grabau and Shimer [1907, pp. 250 and 251] Eoorthis (in part) and Plectorthis (in part), 



Hall and Clarke [1892c, pp. 194-195] Plectorthis, not Eoorthis. 



(Plectorthis) [Orthis], Walcott [1905a, pp. 257-259] Eoorthis. 



(Plectorthis) agreste [Orthis], Walcott [1906, p. 570] Eoorthis agreste. 



(Plectorthis?) atava [Orthis], Walcott [1905a, pp. 259-260] Eoorthis atava. 



(Plectorthis) christianise [Orthis], Moberg and • Segerberg [1906, p. 69] Eoorthis christianiae (in part only). The 



reference includes also E. daunus and 

 E. tuUbergi. 



Walcott [1905a, pp. 260-261] Eoorthis christiania;. 



(Plectorthis) daunus [Orthis], Moberg and Segerberg [1906, p. 69] Eoorthis daunus. 



Walcott [1905a, p. 261] Do. 



(Plectorthis) desmopleura [Orthis], Walcott [1905a, p. 261] Eoorthis desmopleura. 



(Plectorthis) desmopleura nympha [Orthis], Walcott [1905a, p. 262] Eoorthis desmopleura nympha. 



(Plectorthis) diablo [Orthis], Walcott [1905a, p. 262] Eoorthis? diablo. 



(Plectorthis) doris [Orthis], Walcott [1905a, pp. 262-263] Eoorthis doris. 



(Plectorthis) hastingsensis [Orthis], Walcott [1905a, p. 263] Eoorthis hastingsensis. 



(Plectorthis) iddingsi [Orthis], Walcott [1905a, p. 264] Eoorthis iddingsi. 



