Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Billingsariinae
Taxonomy
Subtaxa
Synonymy list
Year | Name and author |
---|---|
1936 | Billingsariinae Okulitch |
1981 | Billingsariinae Hill |
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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.
Subfm. †Billingsariinae Okulitch 1936
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G. †Billingsaria Okulitch 1936
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†Billingsaria parvituba Troedsson 1928
†Billingsaria spissa Percival et al. 2001
Diagnosis
No diagnoses are available