Monographie der Pholadomyen. 9 
Jura, brauner (Dogger). 
Parkinsoni 
Horizont 
(Great-Ool.|Cornbrash.| Callovien. 
u. Haupt- 
rogenstein). 
Opalinus- | Murchis.- | Sowerbyi- | Humph.- 
Horizont. | Horizont. | Horizont. | Horizont. 
Pholadomya 
acuticosta, Sow. 
angustata, Sow. 
bucardium, Ag. 
carinata, Goldf. 
Clytia, Orb. 
crassa, Ag, 
deltoidea, Sow. sp. 
Escheri, Ag. 
fidicula, Sow. 
Frickensis, Moesch 
inornata, Sow. 
Murchisoni, Sow. 
nymphacea, Ag. 
ovulum, Ag. 
reticulata, Ag. 
socialis, Morr.u.Lye. 
transversa, Seeb. 
Voltzi, Ag. 
Wittlinger, Waag. 
Lias. 
Horizont. 
Raricost 
Horizont. 
Jamesoni- 
Horizont. 
Margarit.- 
Horizont. 
Posid.- 
Horizont. 
Jur ensis- 
Horizont. 
Planorbis 
Angulat.- 
Horizont 
Buckl.- 
Horizont. 
Obtusus 
Horizont. 
Pholadomya ambigua, Sow, sp. 
e corrugata, K. u. D. 
decorata, Hart. 
Idea, Orb. 
Voltzi, Ag. 
Woodwardi, Oppel 
