TY - JOUR T1 - The Cosheston Group (Lower Old Red Sandstone) in southwest Wales: age, correlation and palaeobotanical significance JO - GEOL MAG PY - 1998/05/01 AU - Wellman CH AU - Thomas RG AU - Edwards D AU - Kenrick P ED - VL - 135 IS - 3 SP - 397 EP - 412 Y2 - 2025/05/22 ER -