PALAEOZOIC. 



ANNELIDA. 



CAMBRIAN AND SILURIAN. 



CAMBRIAN. LOWEE SIL. UPPKE SILUBIAN. 



SPECIES. 



DOESIBEANCHIATA. 



Cruziana If Orb. 1842 .. 



(Coriaceous annelide tubes) 



Frcena Soualt 



— seniiplicata Salt 



DOESIBEANCHIATA. 



Dexolites Hopkinson,i9~]o 



— gracilis Hopk 



DOESIBEANCHIATA. 

 Haughtonia Kinahan, 1858 



— paecila Kin 



DOESIBEANCHIATA. 



Helromthites Salter, 1 866 . . . 



(Surface annelide markings) .. 



— Sp Salt 



DOESIBEANCHIATA. 



Histioderma Kinahan, 1858. 



(Curved burrows of annelida) ... 

 — Hibernica Kin 



DOESIBEANCHIATA. 



Lumbriearia Miinst. 1826 .. 



(Trails of annelida) 



— antiqna Portl 



— gregaria Portl 



x 

 DOESIBEANCHIATA. 



Myrianltes M"Leay, 1839 • 



— M c Leayi Murch 



— tennis M'Coy 



Abeanchia ? 



Nemertites M°Leay, 1 839 . . 



(Long involved narrow trails of 

 annelida) 



— Ollivanti Murch 



DOESIBEANCHIATA. 



Nereites M 'Leat/, 1 839 . 



(Impressions of annelida with 

 branchim) 



— C'ambrensis Murch 



multiformis 



Bark. 



LA 



REFERENCES. 



ERRANTIA. 



Brit. Assoc. Rcpt. 1852, vol. v, p. 58; ib. Mem. Geol. Surv. 

 (Geol. N. Wales), vol. iii, p. 291, t. 3, f. 1-3; ib. Siluria, 

 4 ed. p. 43, Foss. 5, £. 3 ; ib. Baily, Char. Foss. pt. I, t. 3, 

 f . 1 . ? Trilobite burrows, Dawson. 



ERRANTIA. 

 Geol. Mag. vol. vii, p. 77, woodcut; p. 78, I.I, 1 a, woodcut. 



ERRANTIA. 



Jour. Roy. Geol. Soc. Dub. vol. viii, 1858, p. 1 16-120, wood- 

 cuts ; ib. p. 1 1 8, f . 2. 



ERRANTIA. 



Q. J. Geol. Soc. vol. xv, p. 380, 1. 13, f. 28; ib. Mem. Geol. 

 Surv. (Geol. N. Wales), vol. iii, p. 247, f . 3, woodcut. 



ERRANTIA. 



Jour. Roy. Geol. Soc. Dub. vol. viii, p. 70, t. 6, f. 1,2; ib. 

 Baily, Geol. Mag. vol. ii, p. 398, f . 6, woodcut ; ib. Baily, 

 Figs, of Char. Brit. Foss. p. 3, t. 2, f. 4 a-c. 



ERRANTIA. 



Geol. Rept. Lond. p. 361, t. 24, f. 7. 

 Geol. Rept. Lond. p. 361. 



ERRANTIA. 



Sil. Syst. p. 700, t.27, f.3; ib. Siluria, 4ed. p. 201, Foss. 44, 

 f.l. 



Brit. Pal. Foss. p. 130, 1. 1 D, f. 13. 



Sil. Syst. p. 701, t.27, t. 4. 



ERRANTIA. 



Sil. Syst. p. 700, t. 27, f.i; ib. Siluria, 4ed. p. 201, Foss. 44, 

 f. 3 j ib. M'Coy, Brit. Pal. Foss. p. 129. 



Q. J. Geol. Soc. vol. xi, p. 476. 



3& 



