|
Arionoceras
|
|
|
Kröger, Björn, 2004, Revision of Middle Ordovician orthoceratacean nautiloids from Baltoscandia, Acta Palaeontologica Polonica 49 (1), pp. 57-74
: 72
|
72 |
|
Arionoceratidae
|
|
|
Kröger, Björn, 2004, Revision of Middle Ordovician orthoceratacean nautiloids from Baltoscandia, Acta Palaeontologica Polonica 49 (1), pp. 57-74
: 72
|
72 |
|
Arionoceras lotskirkense
|
|
sp. nov.
|
Kröger, Björn, 2004, Revision of Middle Ordovician orthoceratacean nautiloids from Baltoscandia, Acta Palaeontologica Polonica 49 (1), pp. 57-74
: 72-73
|
72-73 |
