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Quintiniapollis striatulosa
Taxonomy
Quintiniapollis striatulosa was named by Barreda (1997). It is considered to be a form taxon. Its type specimen is CIRGEO Palin 901, coordinates: 35.2/93.9, a seed repro (Polycolporate pollen), and it is a 3D fossil preserving soft parts.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1997 | Quintiniapollis striatulosa Barreda p. 145 figs. Plate I. Figs. 1-6 |
| 2000 | Quintiniapollis striatulosa Barreda and Palamarczuk |
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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.
†Quintiniapollis striatulosa Barreda 1997
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| V. Barreda and S. Palamarczuk 2000 | Pollen grain free, isopolar, tetra- or pentacolporate, suboblate to subspherical. Amb circular to subcircular, sides convex, oval in equatorial view. Colpi long, extending for about 2/3 of the polar diameter, margins straight and slightly thickened. Ora small, circular, 1.5-1.7 µm in diameter, poorly defined, with difuse margins. Exine stratification distinct. Nexine thin, 0.5-0.6 µm thick, increasing in thickness to 1-1.2 µm along colpi. Sexine columellate, 0.7-1.1 µm thick in mesocolpia, thinning gradually towards apertures. Sexine inframicroreticulate and suprastriate. Lumina small, about 0.1 µm in diameter, not always discernible. Surface finely striate, striae 0.1 µm wide, generally parallel to each other. |
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| Polycolporate pollen diameter | 1 | 0.017 |
No ecological data are available
Age range: Late/Upper Oligocene or 28.40000 to 23.03000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Oligocene | Argentina (Santa Cruz) | Quintiniapollis striatulosa (151587) | |
| Late/Upper Oligocene - Early/Lower Miocene | Argentina (Santa Cruz) | Quintiniapollis striatulosa (142317 142318) | |
| Late/Upper Oligocene - Early/Lower Miocene | Argentina (Chubut) | Quintiniapollis striatulosa (143211 143212 143213) |