| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Eotrigonia semiundulata
Taxonomy
Trigonia semiundulata was named by Jenkins (1865) [DISTRIBUTION: Cenozoic; southern Australia.]. It is not a trace fossil.
It was recombined as Eotrigonia semiundulata by Cossmann (1912), Cox (1952), Darragh (1970).
It was recombined as Eotrigonia semiundulata by Cossmann (1912), Cox (1952), Darragh (1970).
Sister species lacking formal opinion data
Synonyms
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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.
†Eotrigonia semiundulata Jenkins 1865
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†Trigonia semiundulata granosa Pritchard 1903
†Trigonia semiundulata lutosa Pritchard 1903
Invalid names: Trigonia subundulata Jenkins 1865 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family | |||||
| References: Aberhan et al. 2004, Ros-Franch et al. 2014 | |||||
Age range: base of the Chattian to the top of the Early/Lower Miocene or 27.30000 to 15.98000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chattian | Australia (Victoria) | Trigonia semiundulata (176279) | |
| Early/Lower Miocene | Australia (Victoria) | Trigonia semiundulata (72223) | |
| Early/Lower Miocene | Australia (Western Australia) | Eotrigonia semiundulata (70714) | |
| Early/Lower Miocene | Australia (Tasmania) | Trigonia semiundulata (72221) |