PALAOZOIC, 
CAMBRIAN. LOWER SIL. 
PLANT, 
UPPER SILURIAN, 
= 
SPECIES. ls 
MN) 
ule 
o 
=| 
Kingdom, PLANT 45, 
Sub-Kingdom, CRYPTOGAMIA. 
ConIFER ? 
Berwynia 
— Carruthersi 
Hall, 1847 
Kidst. 
Bythotrephis 
— divaricata......... 
— flexuosa ......... 
| Lingula Flags. 
ALGE, 
Nematophycus.,. Carruthers, 1872 
Palsochorda 
— tardifurcata...... 
CoNIFER®. 
Prototaxites ..,,.. Dawson, 1859 
sogercn Re: 88 Gonooadonced)| ical fase] (050 
— Hicksii........... RHA TE ceoconcoa| bod ees we 
ies 
| Tremadoe. 
| Arenig. 
Llandeilo. 
Caradoe or Bala. 
Ss 
| Low. Llandovery, 
Up. Llandovery. 
Woolhope Lmst. 
Wenlock Lmst. 
Lower Ludlow. 
Wenlock Shale. 
Upper Ludlow. 
Aymestry List. 
CAMBRIAN AND SILURIAN, 
Tilest. & Passage] J 
up. 
Pass 
REFERENCES. 
Q. J. Geol. Soe. vol. xxxviii, p.97, f. 1; p. 98, t. 3, £. 1-4. 
Cat. Pal. Plants Dept. Geol. Brit. Mus. (Nat. Hist.) p. 243. 
Cat. Pal. Plants Dept. Geol. Brit. Mus. (Nat. Hist.) p. 243. 
vol. vi, p. 495, t. 18, f. A. 
Geol. Mag. 
Geol. Mag. Dec. II, vol. ix, p. 487, t. 11, f. 1, 2. 
Geol. Mag. Dee. II, vol. ix, p. 487, t. 11, f. 3. 
Geol. Mag. vol. vi, p. 496, t. 18 B. 
Var. of divaricata. 
An unknown or undescribed form. 
Geol. Mag. vol. vi, p. 497, t. 18, f. C. 
Geol. Mag. vol. vi, p. 497. 
Vide W. Keeping, Geol. Mag. Dee. II, vol. ix, p. 489. 
Geol. Mag. Dec. II, vol. ix, t. 11, f. 12; Q. J. Geol. Soe. 
vol. xxxvii, p. 146. 
Geol. Mag. Dee. II, vol. ix, t. 11, f. 8-11; Q. J. Geol. Soc. 
vol. xxxvii, p. 156. 
Q. J. Geol. Soc. vol. xxxvii, p. 156. 
Q. J. Geol. Soc. vol. xxxvii, p. 482, t. 25, f. 1-6. 
Geol. Mag. Dee. II, vol. ix, p. 488, t.11, f.5. Vide Q. J. 
Geol. Soc. vol. xxxvii, p. 152, 170 (table). 
Q. J. Geol. Soe. vol. xxxviii, p. 103-107. 
Geol. Mag. Dee. II, vol. ix, p. 488, t.11, f.6,7. VideQ. J. 
Geol. Soc. vol. xxxvii, p. 152. 
