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Taxonomy
Nucula (Acila) isthmica was named by Brown and Pilsbry (1911) [DISTRIBUTION: Late Oligocene-Late Miocene; Caribbean. TYPE: Holotype lost.]. Its type specimen is ANSP 1742, a shell, and it is a 3D body fossil.
It was recombined as Acila isthmica by Olsson (1942); it was recombined as Acila (Acila) isthmica by Schenck (1936), Woodring (1973).
It was recombined as Acila isthmica by Olsson (1942); it was recombined as Acila (Acila) isthmica by Schenck (1936), Woodring (1973).
Subspecies
Sister species lacking formal opinion data
A. asachiensis, A. ashiyaensis, A. cobboldiae, A. elongata, A. gettisburgensis, A. insignis, A. kusiroensis, A. minima, A. mirabilis, A. parva, A. picturata, A. piura, A. pusilla, A. schumardi, A. tosaensis, A. trilineata, A. elongata, A. antefultoni, A. elongata, A. kovatschensis, A. submariabilis, A. vengeriana, A. demessa, A. nakazimai, A. chausiensis, A. chicotana, A. enpirensis, A. ermani, A. eximia, A. gottschei, A. granulata, A. himenourensis, A. ilpinensis, A. incignis, A. insignis, A. isignis, A. longa, A. marujamensis, A. munda, A. nakazimai, A. nehalemensis, A. nehalemensis, A. oyamadensis, A. pecticostata, A. picturata, A. plana, A. pleschakovi, A. praevigilia, A. schomburgki, A. triangula, A. vereshagini
Synonymy list
| Year | Name and author |
|---|---|
| 1911 | Nucula (Acila) isthmica Brown and Pilsbry p. 361 figs. pl. 27, figs. 11, 12 |
| 1936 | Acila (Acila) isthmica Schenck p. 87 |
| 1942 | Acila isthmica Olsson p. 25 |
| 1973 | Acila (Acila) isthmica Woodring p. 489 |
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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 (Acila) isthmica Brown and Pilsbry 1911
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†Acila (Acila) isthmica burica Olsson 1942
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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 Aquitanian to the top of the Late/Upper Pliocene or 23.04000 to 2.58000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aquitanian | Panama | Acila isthmica (93040) | |
| Early/Lower Miocene | Colombia | Acila isthmica (96503 131222) | |
| Tortonian | Panama (Darien) | Acila isthmica (136993) | |
| Tortonian | Panama | Acila isthmica (93052 93055 93057 93059) | |
| Late/Upper Miocene | Colombia | Acila isthmica (131220) | |
| Pliocene | Costa Rica | Acila isthmica (66796) | |
| Late/Upper Pliocene | Costa Rica | Acila isthmica (66794) |