829 



Ptilo. 



Ptilophyton vanuxemi. Dawson. Quar. Jour. Geol. Soc. 

 London, Vol. 18, p. 314, Vol. 17, fig. 57. Lesquereux makes 

 the synonyms : Filicites, Hall. Geol. N. Y., 184, p. 275, fig. 

 125; Vanuxem, Geol. N. Y., 1843, p. 175, fig. 46; Plumalina 

 plumaria^ Hall. Chemung, Coal Flora, Vol. 3, 1884, p. 790. 

 See this Dictionary, page 246. — Reported by I. C. White as 

 found by him in Perry Co., Pa., Barnett's mills (specimen 5-9). 

 Hamilton upper slate. VIII c. Note. — S. A. Miller, in his 

 Appendix to Catalogue of American Pal. Foss. Cincinnati, 

 1877, 1883, says, "this name is proposed iov Lycopodites vanux- 

 emi,, which is Plumalina plumarialsmd Lycopodites plumula. 

 If the types are not Graptolites the genus may stand." 



Ptilopora striata, Hall. Quoted by I. C. White, as name 

 for his specimen 5-36 (000, 125, 11678), collected in Perry 

 Co., Pa., at Barnett's mills, from Hamilton upper shale, VIII c, 



Ptychaspis granulosa. {Dicellocephalus granulosus, 

 1 .^^^^^P^ 5 ..^^i^^s^? Owen. Geol. Wis., etc., 1852, 



pi. 1, f. 5, tail piece, and f. 7, 

 part of head and throat of a 

 trilobite from th^ Third 

 (Miniskah) Trilobite bed of 

 ^ the St, Croix sandstone 



formation. Tipper Cambrian, I, 



Ptychaspis miniscaensis. {Dicellocephalus miniscaen- 



p.m. 



