540 



FOSSIL VERTEBRATA OF NORTH AMERICA. 



[BULL. 179. 



ANTIPUS E. Hitch. Type A . flexiloquus E. Hitch. 



Hitchcock, E. 1858 A, p. 115. 



Antipus bifidus E. Hitch. 



Hitchcock, E. 1858 A, p. 116, pi. xxxvi, fig. 8; pi. 



xlviii, fig. 10. 



Hitchcock, C. H. 1889 B, p. 119. 

 Triassic; Massachusetts. 



Antipus flexiloquus E. Hitch. 



Hitchcock, E. 1858 A, p. 115, pi. xx, fig. 10. 

 Hitchcock, C. H. 1889 B, p. 119. 

 Triassic; Massachusetts. 



APATICHNUS E. Hitch. Type A. drcumagens E. Hitch. 



Hitchcock, E. 1858 A, p. 99. 

 1861 A, p. 150. 



Apatichnus bellus E. Hitch. 



Hitchcock, E. 1858 A, p. 101, pi. xvii, fig. 6; pi. xxxv, 



fig. 8; pi. xlv, fig. 6. 

 Dana, J. D. 18% A, p. 752, fig. 1174. 

 Hitchcock, C. H. 1889 B, p. 118. 

 Triassic; Massachusetts. 



Apaticlinus circumagens E. Hitch. 



Hitchcock, E. 1858 A, p. 100, pi. xvii, fig. 6; pi. 



Deane, J. 1861 A, p. 37, pi. vi, fig. 1; pi. xix; pi. 



xxxiv, fig. 1,2. 



Hitchcock C. H. 1889 B, p. 118. 

 Triassic; Massachusetts. 



Apatichnus crassus C. H. Hitch. 



Hitchcock, C. II. 1889 B, pp, 118.122,124. 

 Triassic; New Jersey. 



Apatichnus holyokensis C. H. Hitch. 

 Hitchcock, C. H. 1889 B, pp. 118, 123, 124. 

 Triassic; Ma&sachusetts. 



ARACHNICHNUS E. Hitch. Type A. dehiscent E. Hitch. 



Hitchcock, C. H. 1889 B, p. 119. 

 Triassic; Massachusetts. 



Hitclicock, E. 1858 A, p. 117. 

 Arachnichnus dehiscens E. Hitch. 

 Hitchcock, E. 1858 A, p. 117, pi. xx, figs. 12,13; pi. 

 xxxvii, fig. 2. 



ARGOIDES E. Hitch. No type; A. isodactylatus may be taken. 



Hitchcoek, E. 1845 B, p. 24. 



1848 A, p. 184. (Argozoum.) 

 1858 A, p. 81. (Argozoum.) 



Argoides isodactylatus E. Hitch. 



Hitchcock, E. 1845 B, p. 24. 



Adams, C. B. 1846 A, p. 215. (Argoides minimus?) 



Hitchcock, C. H. 1889 B, p. 118. (Argozoum pari- 



digitatum.) 



Hitchcock, E. 1836 A, p. 325, fig. 9. (Ornithichnites 

 minimus.) 



1837 A, p. 175. (Ornithichnites minimus.) 

 1841 A, p. 4%, pi. xlv, figs. 38, 39. (Ornith- 



oidichnites isodactylus.) 

 1848 A, p. 187, pi. vi, figs. 4, 5. (Argozoum 



paridigitatum.) 



1858 A, p. 82, pi. xiv, fig. 3; pi. xxxv, fig. 4; 

 pi. xxxix, fig.l. (Argozoum paridigita- 

 tum. 



Warren, J. C. 1854 A, p. 29. (Argozoum paridigi- 

 tatum.) 

 Triassic; Massachusetts, Connecticut. 



Argoides macrodactylatus(E. Hitch.) . 

 Hitchcock, E. 1845 B, p. 25. (Platypterna.) 

 Hitchcock, C. H. 1889 B, p. 118. (Argozoum dis- 



paridigitatum.) 

 Hitchcock, E. 1841 A, p. 494, pi. xliii, fig. 35. (Or- 



nithoidichnites.) 



Hitchcock, E. 1848 A, p. 186, pi. vi, fig. 3. (Argo- 

 zoum disparidigitatum.) 



1858 A, p. 82, pi. xiv, fig. 2. ( Argozoum- dis- 

 paridigitatum. ) 



arren, J. C. 1854 A, p. 29. (Argozoum disparidi- 

 gitatum. ) 



Triassic; Massachusetts, Connecticut, New 

 Jersey. 



Argoides redfieldianus E. Hitch. 

 Hitchcock, E. 1845 B, p. 24. 

 Hitchcock, C. H. 1889 B, p. 118. (Argozoum.) 

 Hitchcock, E. 1844 A, p. 304, pi. iii, fig. 1. (Or- 

 nithoidichnites redfieldii.) 



1848 A, p. 185. (Argozoum.) 



1858 A, p. 81, pi. xiv, fig. 1. (Argozoum.) 



1863 B, p. 85. (Argozoum redfieldianum, 



doubtful species.) 

 1865 A, p. 2. (Argozoum.) 

 Triassic; Massachusetts. 



Argoides robustus E. Hitch. 

 Hitchcock, E. 1845 B, p. 24. 



Giebel, C. G. 1847 B, p. 36. (Ornithichnites robus- 

 tus.) 



Hitchcock, E, 1836 A, p. 319, fig. 3. (Ornithich- 

 nites ingens minor.) 



1837 B, p. 175. (O. robustus.) 

 Triassic: Massachusetts. 



