15 
some cause protected the more ancient remains from 
destruction by the atmosphere, and prevented the carbon 
fixed in them from being lost. Now, with respect to 
Families. Species, 
f Equisetaceae, Filices, Gramineae, Restiaceae, 
Variegated Sandstone ... 8 | LiliacC8Bf Cycadeae, Cupressineae, Abietine*, 32 
Shell Limestone 2 Algae, Filices, 2 
Neuropteris Gaillardotii, Brongn.; Cauler- 
pites Brandowskranus, Goepp. 
c Algae, Equisetaceae, Filices, Restiaceae, As- 
^ | parageae, Cycadeae, Cupressineae, Abietineae, 
5-2 
Lias 
.12 
Jurassic Formation 9 
Wealden Formation 
8 
Green Sand 15- 
Chalk 1 
Monte Bolca 4 
Eocene 10 
Keuper 
r Fungi, Algae, Lichenes ? Equisetaceae, Filices, 
Hydropterides, Lycopodiaceae, Cyperaceae, 
Gramineae, Cycadeae, Abietineae, Cupres- 
sineae, 75 
Algae, Equisetaceae, Filices, Hydropterides, 
Lycopodiaceae, Najadeae, Pandaneae, Cyca- 
deae, Abietineae 159 
Algae, Equisetaceae, Filices, Palmae, Lilliaceae, 
Cycadeae, Abietineae, Cupressineae 16 
Algae, Filices, Lycopodiaceae, Gramineae, Na- 
jadeae, Palmae, Asparageae, Cannaceae, Cy- 
cadeae, Abietineae, Salicineae, Myriceae, Acer- 
ineae, Juglandeae, Crassulaceae 59 
Algae 3 
Alga?, Najadeae, Gentianeae, Nymphaeceae 7 
Algae, Najadeae, Pandaneae, Cupressineae, Pro- 
teaceae, Cucurbitaceae, Leguminosae, Sapin- 
daceae, Malvaceae, Aurantiaceae 120 
Fungi, Lichenes, Algae, Characeae, Musci hep- 
atici et Musci frondosi, Filices, Hydropter- 
ides, Lycopodiaceae, Gramineae, Liliaceae, 
Najadeae, Typhaceae, Ceratophylleae, Pan- 
daneae, Palmae, Cannaceae, Asparageae, Cy- 
cadeae, Abietineae, Cupressineae, Taxineae, 
Gnetaceae, Acerineae, Cupuliferae, Plataneae, 
Salicineae, Betulineae, Myriceae, Ulmaceae, 
Primulaceae ? Apocyneae, Ebenaceae, Olei- 
neae, Ericaceae, Loranthaceae, Caprifoliaceae, 
Umbelliferae, Halorageae, Leguminosae, Te- 
rebinth aceae, Juglandeae, Zanthoxyleae, 
Rhamneae, Coriarieae, Acerineae, Elatineae. . 327 
Geological position 
unknown 4 | Algae, Palmae, Cycadeae, Abietineae 11 
*1792 
* Comples Rendus, 1845. 
DO 
Miocene, Molasse, 
et Pliocene 52 
