6o 



TYPE AMMONITES— VI 



June 



Pages &■ Plates 

 Shotover gap 38 



— Grit Sands . . . . 27, 28 



— Sands 25-29 



— sequence 28 



Shotoverites . . . . 15, 25, dlxii 



pringlei 



— pringlei . . . . 9. 15. 24. 25 



— reductus 9, 15 



— suture-lines 9 



Sigaloceras, development . . . . 21 



simile DCix 



simplicicosta 43 



Simplidactylites 43 



simplicicosta 



— simplicicosta 43 



Simpson, M 12 



simulans Dcxxxi 



skipping 21 



Sonninia dccix 



— adicra dclxix 



— mammillate . . . . dcxi 

 Sonninian 23, 24 



— strata 47 



Sonninites dcxxxi 



alsaticus, simulans 

 Sonninites (Sonnites) . . Dxxviii a 



South American 48 



Spath, Dr. L. F lo, 13, 21 



Spha;roceras brocchi 48 



— multiforme 47 



— perexpansum . . . . cxxxv 



— polyscliides 47 



Sphaeroraorphites 50 



sphenoidea dclxxii 



Sphinctoceras crassum 9 



— distans 9, dcxxxviii 



— — to Allovirgatites . . 10 



spicatum 42 



Spinicoeloceras 42 



spicatum 



Stanton St. John 49 



Stenechioceras . . . . Dcxcvii 



angustilobatum 

 Stephanoceras annulatum . . . . 41 



— clausiprocerura . . . . Dxcv 



— commune . . 43, 44, dchv 



— crassum 42 



— fibulatum andreae . . . . 44 



— pseudoprocerum. . .. Dcxxiii 

 • — raquinianum . . . . 42, 44 



— subarmatum 42 



— subprocerum . . . . Dcxxiv 

 Stepheoceratan 22 



— strata 47 



Strata 34 



— , absences of 40 



Stratal names 35, 36 



— — , (I. of Purbeck) . . 35 



— thicknesses 35. 36 



Strigoceras dlxxxv 



gracile 



Stroud 47 



Subbigotitean venter . . . . Dccxiii 



subcadiconica Dccxi 



subcarinatum bed 45 



subprocerum dcxxiv 



subrotundata . , dcvii 



Pages &■ Plates 



Suspensive lobe 8 



Suture-line 7 



— — degenerate . . . . dccix 



— — , recording . . . . 8 



— — uncompleted . . dlxxx b 



Swindon Clay 27 



Swindon, chronology 35 



Swindon, gap 37 



Synopsis 52 



Synthetograph 12 



Syntopite 48 



Systematic 7 



Tate, R. 47 



Teloceras dclx 



banksii 

 Teloceras-Stepheoceras stage . . 23 



tenuicostatus clvii 



Tenuidactylites . . . . 14, clvii 



tenuicostatus 

 Test with puncta; . . . . Dxciii 

 Thame Sands. . . . .. . . 27, 28 



— — thickness of . . . . 63 



Thomford Beds 49, 50 



Toricelliceras 20 



Toxodactylites 42 



toxophorus 



— toxophorus 42 



toxophorus 42 



Tragophylloceras . . . . dclxxix 



nanus 



Transition Bed 46 



trifurcatus Dcxxii 



trigonalis dclxxiv 



Trill 49 



Troll 49, 51 



Trophonites pseudogigas . . . . 26 



truculentum dcciv 



Trull 49 



tuberculate stages 23 



Tulophoritcs 50 



— afi. praeclarus 51 



tumulosus Dccxiv 



tutcheri Dcxcii 



Type-species 6 



typicum dcxcv 



typus Dcxciv 



umbilicata dclxxi 



uncoiled forms 22 



Upper Lias 45 



— — , Barrington . . . . 41 

 Upper White Ironshot . . . . 47 

 Upper Witchett . . . . dccxvii 



variabilis bed 45 



Venter 21 



— bigotitean dcxxii 



— characters 16 



— (ornament) 18 



— • (shape) 17 



— subbigotitean . . dccxiii 

 Vermidactylites . . . . 42, lxviii 



vermis 



vermis 42, lxviii 



Vertebriceras . . Dcxix, Dcxxxvi, 



DCXLVIII 



costulosum, quadratum, rachis 



— quadratum dcxix 



— rachis . , . , . , ocjfLviij 



