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Azolla andreisii
Taxonomy
Azolla andreisii was named by De Benedetti et al. (2021). It is considered to be a form taxon. Its type specimen is MPEF-PA 207, a megaspore, and it is a 3D body fossil.
Sister species lacking formal opinion data
A. aspera, A. barbata, A. capricornica, A. circinata, A. conspicua, A. cretacea, A. cretacea, A. distincta, A. elegans, A. filiculoides, A. filosa, A. fistulosa, A. fragilis, A. geneseana, A. gigantea, A. interglacialica, A. japonica, A. lauta, A. montana, A. nikitinii, A. parapinnata, A. pinnata, A. pseudopinnata, A. rhizosperma, A. rosica, A. schopfi, A. sibirica, A. simplex, A. spinata, A. tegeliensis, A. telegiensis, A. teschiana, A. tomentosa, A. tuganensis
Synonymy list
| Year | Name and author |
|---|---|
| 2021 | Azolla andreisii De Benedetti et al. p. 6 |
| 2024 | Azolla andreisii De Benedetti et al. p. 7 |
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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.
†Azolla andreisii De Benedetti et al. 2021
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. De Benedetti et al. 2021 | Megaspore apparatus oval to elliptical,with a spherical to subspherical megaspore and a proximal float apparatus.Megaspore surface completely covered by a thickmat of intertwined hairs. Float apparatus composed of more than 20 pseudovacuolate floats arranged in three to five poorly defined tiers. Floats spherical, elliptical, quadrangular, rhombic, or irregular in shape andwith a rough orwrinkled surface. Vegetative remains and microspore massulae unknown. |
Measurements
No measurements are available
No ecological data are available
Age range: base of the Maastrichtian to the top of the Danian or 72.20000 to 61.66000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Maastrichtian | Argentina (Chubut) | Azolla andreisii (199410 239890 239891) | |
| Danian | Argentina (Chubut) | Azolla andreisii (239892) |