1856.] 



WRIGHT — UPPER LIAS SANDS. 



317 



valent of the Jurensis-marl of Dr. Fraas, so well developed in Suabia, 

 and described in his admirable memoir " On the comparison of the 

 German Jura-formation with those of France and England*/' This 

 bed was hitherto supposed both by English and continental geologists 

 to be wanting in England, but I have shown that it is probably as 

 well developed in our island as on the continent. 



A Table showing the Stratigraphical Distribution of the Fossils contained 



in the foregoing lists. 



Names of Species. 



Ammonites opalinus. Rein. 



insignis, Schubl 



variabihs, c?'0r6 



discoides, Ziet 



Thouarsensis, d'Orb. 



radians. Rein 



Raquinianus, d'Orb... 



hircinus, Schloth 



Jurensis, Ziet 



Dorsetensis, Wright 



concavus. Sow 



striatulus. Sow 



heterophyllus. Sow. 



England. 



• serpentinus, Schloth 



bifrons, BrM^.=Walcottii, Sow 



communis. Sow , 



margaritatus, Mft. =amaltlieus, 



Schl , 



spinatus, Brug 



Truelli, d'Orb 



• eorrugatus=Murchison8e, Sow 



Humphriesianus, Sow 



Brongniarti, Sow 



Gervillii, Sow 



Brocchii, Sow 



Sowerbyii, Miller.. 



Blagdeni, Sow 



■ dimorphus, d'Orb. 



Parkinsoni, Sow. .. 



Martinsii, d'Orb. .. 



• subradiatus. Sow.,. 



J8 



.a 

 -I 



S-, O 



France. 



Belgium. 



Germany 



I 

 1 

 ... * 



jias n 

 jiasn 



loyen 

 loyen 



• 



... * 









... * 









... * 









... * 









... * 









... * 









... * 









... * 









... * 



... 



... 



.. 



... * 









... * 









* Quart. Joum. Geol. Soc. vol. vii. Part 2, Miscell. p. 42, &c. 



z2 



