| "Gallici nautae de Galliarum provinciis" - a sixth/ seventh-century trade with Gaul, reconsidered | Thomas, Charles | Article in Journal | | 1990 |
| A provisional list of imported pottery in post-Roman western Britain and Ireland | Thomas, Charles | Monograph or Collective Volume | Institute of Cornish Studies | 1981 |
| And shall these mute stones speak? Post-Roman inscriptions in western Britain | Thomas, Charles | Monograph or Collective Volume | University of Wales Press | 1994 |
| Britain and Ireland in early Christian times, A.D. 400-800 | Thomas, Charles | Monograph or Collective Volume | Thames & Hudson | 1971 |
| Cellular meanings, monastic beginnings | Thomas, Charles | Article in Journal | | 1995 |
| Christianity in Roman Britain to AD 500 | Thomas, Charles | Monograph or Collective Volume | NA | 1981 |
| Early medieval Munster : thoughts upon its primary Christian phase | Thomas, Charles | Article in Book | | 1998 |
| Imported late-Roman Mediterranean pottery in Ireland and western Britain : chronologies and implications | Thomas, Charles | Article in Journal | | 1976 |
| Irish colonists in south-west Britain | Thomas, Charles | Article in Journal | | 1973 |
| Palladius and Patrick | Thomas, Charles | Article in Book | | 2004 |
| People and pottery in Dark-Age Cornwall | Thomas, Charles | Article in Journal | | 1960 |
| Recognising Christian origins : an archaeological and historical dilemma | Thomas, Charles | Article in Book | | 1986 |
| Saint Patrick and fifth century Britain : an historical model explored | Thomas, Charles | Article in Book | | 1979 |
| The artist and the people, a foray into uncertain semiotics | Thomas, Charles | Article in Book | | 1995 |
| The context of Tintagel : a new model for the diffusion of post-Roman Mediterranean imports | Thomas, Charles | Article in Journal | | 1988 |
| The earliest Christian art in Ireland and Britain | Thomas, Charles | Article in Book | | 1987 |
| The Eastern Mediterranean and the Western provinces : a British perspective | Thomas, Charles | Article in Book | | 1994 |
| The Irish settlements in post-Roman western Britain : A survey of the evidence | Thomas, Charles | Article in Journal | | 1972 |
| Topographical notes : 3, Rosnat, Rostat and the early Irish church | Thomas, Charles | Article in Journal | | 1971 |