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Acernaspis elliptifrons
Taxonomy
Trilobites elliptifrons was named by Esmark (1833).
It was recombined as Phacops elliptifrons by Størmer (1939); it was recombined as Acernaspis elliptifrons by Campbell (1967).
It was recombined as Phacops elliptifrons by Størmer (1939); it was recombined as Acernaspis elliptifrons by Campbell (1967).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1833 | Trilobites elliptifrons Esmark |
1939 | Phacops elliptifrons Størmer pp. 122 - 123 figs. Text- flg. 2, 6, 7. Pl. l, flg. 2-4 |
1967 | Acernaspis elliptifrons Campbell p. 32 |
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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.
†Acernaspis elliptifrons Esmark 1833
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Diagnosis
No diagnoses are available