1. The conifers Frenelopsis and Manica in the Cretaceous of Portugal;Alvin;Palaeontology,1977
2. Cheirolepidiaceae: biology, structure and paleoecology;Alvin;Review of Palaeobotany and Palynology,1982
3. A Frenelopsis with opposite decussate leaves from the Lower Cretaceous of Portugal;Alvin;Palaeontology,1978
4. A Classopollis-containing male cone associated with Pseudofrenelopsis;Alvin;Palaeontology,1978
5. Anatomy and palaeoecology of Pseudofrenelopsis and associated conifers in the English Wealden;Alvin;Palaeontology,1981