| Lee et al. (1991) |
1991 |
Conodonts from the lower Dumugol shale(Lower Ordovician) of the Cheungsan-Sabuk area, Jeongseon-gun, Kangweon-Do |
| Seo and Ethington (1993) |
1993 |
Conodonts from the Manitou Formation, Colorado, U.S.A. |
| Seo et al. (1994) |
1994 |
Early Ordovician conodonts from the Dumugol Formation in the Baegunsan Syncline, eastern Yongweol |
| Jin and Seo (2001) |
2001 |
A new species of Diplolophodon from Yunnan, China |
| Seo (2002) |
2002 |
Conodont biostratigraphy of the Mungog Formation (lower Ordovician), Yeongweol, Korea |
| Seo (2002) |
2002 |
Conodonts from the Dumugol Formation (lower Ordovician) Tanyang Area, Korea |