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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Retitricolporites ganganensis
Discussion
The epithet ganganensis refers to GanGan, a small town near the La Colonia Fm. outcrops.
Taxonomy
Retitricolporites ganganensis was named by De Benedetti et al. (2023). Its type specimen is MPEF-PA 620, a microspore, and it is a 3D body fossil. Its type locality is Paleoazolla type locality, Cerro Buitre, which is in a Maastrichtian terrestrial horizon in the La Colonia Formation of Argentina.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2023 | Retitricolporites ganganensis De Benedetti et al. p. 3 |
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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.
†Retitricolporites ganganensis De Benedetti et al. 2023
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. De Benedetti et al. 2023 | Pollen grain tricolporate, subspheroidal to prolate. Colpi extended nearly to the poles. Pores lalongate, usually indistinct. Exine 1.0–1.5 μm thick, two layered, sexine thicker than nexine. Sexine simplicolumellate, semitectate, reticulate. Lumina polygonal, rounded to irregular, up to 1.8 μm diameter in the mesocolpia, smaller lumina in the apocolpia and colpi margins. Muri up to 0.6 μmwide. |
Measurements
No measurements are available
No ecological data are available
Age range: base of the Maastrichtian to the top of the Early/Lower Paleocene or 72.20000 to 61.66000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Cretaceous - Early/Lower Paleocene | Argentina (Chubut) | Retitricolporites ganganensis (195707) | |
| Maastrichtian | Argentina (Chubut) | Retitricolporites ganganensis (type locality: 31653 199410) | |
| Danian | Argentina (Chubut) | Retitricolporites ganganensis (239892) |