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Retitricolporites irupensis
Discussion
The epithet irupensis refers to the Caadn del Irup locality.
Taxonomy
Retitricolporites irupensis was named by De Benedetti et al. (2023). Its type specimen is MPEF-PA 82, 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 irupensis 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 irupensis De Benedetti et al. 2023
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. De Benedetti et al. 2023 | Pollen grain tricolporate, suboblate to subprolate, amb subcircular to semilobate. Colpi extended nearly to the poles. Pores usually indistinct. Exine 3.0–4.5 μmthick, two layered, reduced towards the colpi margins. Nexine up to 2 μm thick. Sexine up to 3 μm thick, columellate, semitectate, reticulate. Lumina polygonal, rounded to irregular, up to 4.5 μm diameter in the mesocolpia, slightly smaller at the apocolpia, and strongly reduced in the colpi margins. Muri up to 1 μmwide. |