CHRONOLOGICAL 



45 



h. — Radstockiceras. 



Fastigiceras clausum, nov. G.-t 



Tutchericeras perfoliatum, nov. G.-t 



Victoriceras victoris, Dumortier sp. 1867. G.-t. 



g. — podophyllum. 

 Oxynoticeras buckii, Simpson sp. 1843 



polyophyllum, Simpson sp. 1843 . . 



/. — oxynotum. 

 Oxynoticeras arctum, Simpson sp. 1843 

 dennyi, Simpson sp. 1843 

 flavum, Simpson sp. 1843 

 limatum, Simpson sp. 1843 

 oxynotum, Quenstedt sp. 1843 . . 

 Parechioceras finitimum, Bean-Blake sp. 1876 

 neglectum, Simpson sp. 1855 . . 



e. — biferum. 

 Bifericeras biferum, Quenstedt sp. 1846 G.-t. 

 nudicosta, Quenstedt sp. 1856 

 parvum, S. Buckman sp. 1904 



d. — simps oni. 

 Agassiceras simpsoni, Bean-Simpson sp. 1843 

 Retenticeras retentum, Simpson sp. 1855. G.-t. . . 



c. — Gagaticeras. 

 Androgynoceras integricostatum, Simpson sp. 1855 . . 

 siphunculare, Simpson sp. 1843 



Gagaticeras funiculatum, nov 



gagateum, Young & Bird sp. 1828. G.-t. 



-lacunata. 



a. — subpolita. 

 Angulaticeras sulcatum, Simpson sp. 1843 



38 



7 . ASTEROCER ATA N 



g. — denotatus. 



Arietites denotatus, Simpson sp. 1855 67a, b. I. 



impendens, Young & Bird sp. 1828 . . . . 120 II 



x, 12. 

 iii, 19- 



/. — st ell are. 



Arietites radiatus, Simpson sp. 1843 35 I 



tenellus, Simpson sp. 1855 54 I 



e. — planicosta. 



Xipheroceras binodulatum, nov 706a, b. VI 



revertens, nov 77i a » b. VII 



scoresbyi, Simpson sp. 1843 . . . . 39a, b, c. I 



ziphus, Hehl-Zieten sp. 1830 . . . . 632 VI 



iv, 11. 

 v, 12. 



iv, 27. 



iv, 28. 



xi, 11. 



iv, 26. 



d. — sagittarium. 



c. — obtusum. 



b. — turgescens. 



