|
Becker & House |
1994 |
International Devonian goniatite zonation, Emsian to Givetian, with new records from Morocco.
Courier Forschungsinstitut Senckenberg 169: 79-135, 10 text-figs., 7 pls., Frankfurt am Main.
|
|
|
Korn & Klug |
2002 |
Ammoneae Devonicae.
In: Fossilium Catalogus, I: Animalia (edit. Riegraf,W.), Pars 138:
375 p., 238 fig., 4 tab., Leiden (Backhuys Publ.).
|