Ammonites excavatus sowervy, 1818. 
one Ammonites excavatus 
Sowerby, 1818. 
1818. — SoweRrBy (James). The Mineral Conchology of Great Britain, 
I ME Es SAAENE 
Type specimen (holotype). 
[Sowerby Collection, British Museum, Nat. Hist. Geol. Dept. No 43.976]. 
H. — Ammonites excavatus, side view, nat. size. 
H.2 — The same, front view. 
H.b — Suture line of the same. 
PALAEONTOLOGIA UNIVERSALIS. 
— 92° 
