TY  - JOUR
A1  - Hyatt A.
JO  - Zittel K. (ed.) Text-book of Palaeontology
C1  - London: C. R. Eastman, pp. 502-592
TI  - Cephalopoda
UR  - https://molluscabase.org/aphia.php?p=sourcedetails&id=488543
PY  - 1900
Y2  - 2026-07-12
ER  -