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Proteacidites baibianae
Discussion
The epithet baibianae honors the Baibin family for allowing access to some of the studied outcrops.
Taxonomy
Proteacidites baibianae was named by De Benedetti et al. (2023). Its type specimen is MPEF-PA 853, a microspore, and it is a 3D body fossil. Its type locality is Cerro Bosta (CBO) (Paleobotany), which is in a Maastrichtian marginal marine siltstone in the La Colonia Formation of Argentina.
Sister species lacking formal opinion data
P. adenanthoides, P. annularis, P. asperatus, P. callosus, P. crassus, P. differentipolus, P. fromensis, P. incurvatus, P. kopiensis, P. minimus, P. nitidus, P. ornatus, P. rectilatus, P. reflexus, P. reticuloscabratus, P. rugulatus, P. scitus, P. simplex, P. sinulatus, P. spiniferus, P. stratosus, P. terrazus, P. thalmanni, P. tuberculatus
Synonymy list
| Year | Name and author |
|---|---|
| 2023 | Proteacidites baibianae 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.
†Proteacidites baibianae De Benedetti et al. 2023
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. De Benedetti et al. 2023 | Pollen grain triporate, angulaperturate, isopolar, amb triangular, sides straight to slightly concave or convex, apices truncate. Pores subcircular, ca. 3–11 μm diameter. Exine ca. 1.2–3.0 μm thick, two layered, nexine equal or thicker than sexine. Nexine homogeneous. Sexine columellate, tectate perforate. Columellae short, mostly indistinct, relatively thick tectum composed of small, low, closely spaced rugulae and verrucae, with scattered puncta. |
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Kiessling 2009 | |||||
Age range: Maastrichtian or 72.20000 to 66.00000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Cretaceous - Early/Lower Paleocene | Argentina (Chubut) | Proteacidites baibianae (195707) | |
| Maastrichtian | Argentina (Chubut) | Proteacidites baibianae (31653 type locality: 199410) |