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New Triassic sphenodontids from south-west England and a review of their classification
N. C. Fraser
1986
Article
Palaeontology
29:165-186
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Taxa discussed in this work:
Pelecymala
Pelecymala robustus
Sigmala
Sigmala sigmala
Taxonomy:
Sigmala sigmala
belongs to
Sigmala
- Fraser (1986)
Sigmala
belongs to
Sphenodontidae
- Fraser (1986)
Pelecymala robustus
belongs to
Pelecymala
- Fraser (1986)
Pelecymala
belongs to
Sphenodontidae
- Fraser (1986)