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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Acila (Truncacila) demessa haidana was named by Packard in Schenck (1936).
It was recombined as Acila (Truncacila) haidana by Squires and Saul (2006).
It was recombined as Acila (Truncacila) haidana by Squires and Saul (2006).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1936 | Acila (Truncacila) demessa haidana Packard pp. 50-51 figs. pl. 2, figs. 3, 4, 6, 10 |
| 1936 | Acila (Truncacila) demessa haidana Packard in Schenck pp. 50-51 figs. pl. 2, figs. 3, 4, 6, 10 |
| 2006 | Acila (Truncacila) haidana Squires and Saul p. 92 |
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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.
†Acila (Truncacila) haidana Packard in Schenck 1936
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Mikkelsen and Bieler 2008, Aberhan et al. 2004 | |||||
Age range: base of the Cenomanian to the top of the Turonian or 100.50000 to 89.80000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cenomanian | USA (California) | Acila haidana (220386) | |
| Turonian | USA (California) | Acila haidana (69616 220357) |