. 
PALZOZOIC. GASTEROPODA. CAMBRIAN AND SILURIAN. 
CAMBRIAN. LOWER SIL. UPPER SILURIAN. 
— - — 
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SPECIES. sy | ei ees m\olS]8| SSIS IAI BIAls| 6 REFERENCES. 
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ale|@)8/8lslelel_/Slele|ela|alele 
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PYRAMIDELLID®. 
Macrocheilus...... Phillips, 1841.. LOMO ON ESE: 
— elongatus ...... Portl.... * Polyphemopsis, Geol. Rept. p. 416, t. 31, f. 2. 
— fusiformis ...... SOW.” cesescucciens sesfereleos|oeefees serfecsfeerP ae [ees]aee|erfere]oeefees]eeelee| Buceinum, Sil, Syst. p. 642, t. 20, £.19. Macrocheilus, 
Siluria, 4ed. t. 10, f. 13. 
HALIOTID=. 
Murchisonia ... D’Archiac et 
De Verneuil,1841 
Pleurotomaria (part) Authors HOLOSTOMATA 
Hormotomia ... Hall ............ : 
| — angulata....... GIS: -BCURGORCOGOS 500) edo {A80) lone! fone secf ae |e fece[ece|oc]oss[eee[ace[eee]aefeee| Plewnotomaria, Sil. Syst. t.21, f.10. Murchisonia, Siluria, 
4ed. t. 10, f.12. 
— angulocincta ... Salé. ............ Bac aes le0o| see fo08 al eealtonel Hie seslecelees|eeelece]eeeleoe|---] Q. J. Geol. Soc. vol. xv, p. 380, t.13, £. 9, 10. 
— angustata lee) joe il ecs eee lees eee ben | eae cee seal eee coal nee | eas eNews vorksevolods) p- nis: talOs tee 
——Santiculata, cars SOs | cs.ccearevelievel ecs|(ces| sectors sfx |ecc[eeefece| x [eee] ae [eee]e.-| Plewrotoma, Sil. Syst. p. 612, t.5, £. 25. Murchisonia, 
Siluria, 4ed. t. 24, f. 2. 
— balteata ......... me laesLane weal ye] ae [ecelecelece|eee{eee| Plewrotomaria, Mem. Geol. Surv. vol. ii, pt.1, p. 358, t. 15, 
Peres 
— bellicincta ...... TTY cecscenssivss Ecol lraq| hed leer bsoc geil aer| ee [ewe wal see[ese[eee[eeefeeefeeefeee] Pal. New York, vol. i, p. 179, t. 39, £.1; ib. Billings, Geol. 
Canada, p.183, f.177; Q. J. Geol. Soc. vol. xv, p. 380, 
t.135.4. Dr. 
— bicineta ......... Mi Coy) redeecss Rotecalises| see eee mele orl lace seslesefeeefece[eeefeee[eee]eee] Synop. Sil. Foss. Irel. p.16, t.1, f.17 (non bicincta, Hall, 
Pal. New York). ? M. bicincta, Salt. Geol. Surv. Canada, 
Dec. I, p. 19, t. 4, f. 5-7: 
— cancellatula ... M‘Coy ......... pee esc ton tee erie ral el bee ised eee eealteelecel eaeloealeee hen | BritbalesMosssepe2oan trlelu,aten20. 
= cingulata......... LASTS eee saute S06) lace cad lscdl [ood Bsa Spal bed oo veelecsleee] P| ge |eeefeecleee] Zuadtella, Leth. Suec. t.12, f.6; ib. M‘Coy, Synop. Sil. 
j Foss. Irel. p. 16, t.1, £.185 ib. Brit. Pal. Foss. p. 293. 
— corallii............ ISOs oese ace ve tee sell oaall rere ree Hes BA lac eee ee slusefeccleeel ae [ae [eecfee.| Plewrotoma, Sil. Syst. t. 5, £. 26. Murchisonia, Siluria, 
. ged. t. 24, £. 7: 
— gracilis ......... QU. eccseetee ss Bae [aos] lope face [eae Seilecallesc|eas see[one|eceecelees|eos{eee]eee| Pal. New York, vol.i, p.181, t. 39, £. 4, and t.83, f.1; ib. 
Salt. Geol. Canada, Dec. I, p.22, t.5, £.13 ib. Salt. Q. J. 
Geol. Soc. vol. xv, p. 379, t-13, f. 7-8. ? M. angustata, 
Hall, Op. cit. t.10, f. 2. Hormotoma, Hall. 
noe} Iba x | x Brit. Pal. Foss. p. 293, t.1 K, £.43; ib. Siluria, 4ed. p. 197, 
Foss. 40, f. 6. 
Bd ised ect avet Inara Wana we lece[oee[ecc]ece{ecs[eee{eee]ees| Plewrotomaria, Synop. Sil. Foss. Irel. p.15, t. 1, ie 15. 
Pleurotomaria, Sil. Syst. t. 8, f.14. Murchisonia, Siluria, 
4.ed, t. 24, £.5. 
poyfodd) |so8 bea |F°3!| [od boc vacleccleccfecclece{eee{eeefeee] Lowonema, Geol. Rept. p. 415, t. 31, f. 3. Murchisonia, 
Siluria, 4 ed. p. 197, Foss. 40, f. 3. 
— polyglypha...... PHA. aves senses 4d [bea lob feed Iaae Ba Kon ocd Hoc sialsce[oes[oee{ece{eeefeee]ee-| 272de Holopella cancellata. 
— Pryce@ oe... SOW: arse serene ool eee lara eed es vecfece| ge [eee|ece{eos|ece[eos]eesfeoo|ooe]oe-| Zeerbo, Sil. Syst. p. 642-706, t. 21, f. 19. Murchisonia, 
Siluria, 4 ed. t.10, f.11. Cyclonema. 
Synop. Sil. Foss. Irel. p. 16, t.1, f.19; ib. Brit. Pal. Foss. 
* 
p. 294, t.1 K, f. 42. 
EI SCAIATIS. sceecen- Salts wcccccsneees ed loca lene ceed eos Ns Nleed| boa vecfecelsce{ece{eee{ece{eee{eee] Q. Js Geol. Soc. vol. v, p.14, t.1, f£.2. ? M. simplex, M‘Coy, 
Brit. Pal. Foss. p. 294. 
— simplex ......... MS Coy. sesaysees cat focal hecal aos ao * | |---| sealecelese{eceface{eeefaee/ee| Brite Pal. Foss. p. 294, t.1 K, f. 44. ? M. scalaris, Salt. 
Q. J. Geol. Soe. vol. v, p. 14, t.1, f. 2. 
— subrotundata ... Portl............. bod jase ioe ised lsat poe (| loot (eo Lleccleccleccleee{ece{eeel...| Plewrotomaria, Geol. Rept. p. 414, t. 30, £.8. Murchisonia, 
Siluria, 4 ed. p.197, Foss. 40, f. 7. 
Synop. Sil. Foss. Trel. p. 17, t.1, f. 20. 
Q 113 
