TY - JOUR T1 - Ultrastructure of Synorisporites downtonensis and Retusotriletes cf. coronadus in spore masses from the P艡铆doli of the Welsh Borderland JO - Palaeontology PY - 1996/09/01 AU - Edwards D AU - Davies KL AU - Richardson JB AU - Wellman CH AU - Axe L ED - VL - 39 IS - 3 SP - 783 EP - 800 Y2 - 2025/05/23 ER -