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Kraeuselisporites alexii
Taxonomy
Kraeuselisporites alexii was named by Raine (2008). Its type specimen is L9380/1, an other, and it is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2008 | Kraeuselisporites alexii Raine p. 112 |
| 2024 | Kraeuselisporites alexii De Benedetti et al. |
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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.
†Kraeuselisporites alexii Raine 2008
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. I. Raine 2008 | Large zonate trilete spores; outline of spore body in polar view rounded triangular, outline including zona subcircular; laesurae extend fully to spore radius and have membraneous elevated labra up to ca 13 µm high, which extend to the radial extremities of the zona; homogeneous nexine ca 1–2 µm thick, clearly differentiated
from spongeous sexine, which is slightly thinner; in zona only, sexine intrastructure with radially directed elements; sexine surface scabrate overall, and distally bearing sparse ornament of narrow echinae or setae up to 4 µm in height, ca 1 µm in basal diameter; zona up to 25 µm wide in interradial regions, slightly narrower in radial regions, thinner in a narrow band 2 – 3 µm wide paralleling the margin and ca 1.5 µm inside it, and minutely apiculate at its margin. |
Measurements
No measurements are available
No ecological data are available
Age range: Maastrichtian or 72.20000 to 66.00000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Maastrichtian | Argentina (Chubut) | Kraeuselisporites alexii (199410 239891) |