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Lyrasperma
Taxonomy
Lyrasperma was named by Long (1960). It is not extant. Its type is Samaropsis scotica.
It was assigned to Pteridospermophyta by Andrews (1970); and to Calamopityaceae by Meyen (1984).
It was assigned to Pteridospermophyta by Andrews (1970); and to Calamopityaceae by Meyen (1984).
Species
Synonymy list
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Diagnosis
No diagnoses are available