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Astrovidictya
Taxonomy
Astrovidictya is a genus. It is not extant.
It was assigned to Cryptostomata by Sepkoski (2002); to Ptilodictyina by Jiménez-Sánchez et al. (2010); and to Stictoporellidae by Ernst and Nakrem (2011), Ma et al. (2015).
It was assigned to Cryptostomata by Sepkoski (2002); to Ptilodictyina by Jiménez-Sánchez et al. (2010); and to Stictoporellidae by Ernst and Nakrem (2011), Ma et al. (2015).
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Astrovidictya Sepkoski |
| 2010 | Astrovidictya Jiménez-Sánchez et al. p. 707 |
| 2011 | Astrovidictya Ernst and Nakrem p. 178 |
| 2015 | Astrovidictya Ma et al. p. 927 |
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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.
G. †Astrovidictya
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Ernst and H. A. Nakrem 2011 | Branching bifoliate colonies, branches oval or lens-shaped in cross-section. Mesotheca straight or crenulated, containing hyaline rods. Autozooecial diaphragms rare. Both superior and inferior hemisepta present, straight or hook-shaped, long. Apertures oval or elliptical. Single or doubled metazooecia between autozooecial apertures, becoming abundant at branch edges. Flat maculae lacking autozooecia may occur. |
Measurements
No measurements are available
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| Source: c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Kiessling 2004, Smith et al. 2006 | |||||
Age range: Kralodvorian or 450.10000 to 445.20000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kralodvorian | France | A. sparsa (143879) |