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Asterosoma
Taxonomy
Asterosoma was named by von Otto (1854). It is considered to be a form taxon. Its type is Asterosoma radiciforme.
It was assigned to Ichnofossils by Hantzschel (1975).
It was assigned to Ichnofossils by Hantzschel (1975).
Species
A. radiciforme (type species)
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1854 | Asterosoma von Otto p. 15 |
| 1975 | Asterosoma Hantzschel |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. Hantzschel 1975 | Big stars diameter about 20 cm with elevated center; about 3 to 9 rays, bulbous, tapering toward ends, longitudinally wrinkled, of different length, 2 of them mostly lying in the same direction and commonly longer than other ones; rays sometimes do not radiate in all directions but form only acute-angled sector; longitudinally wrinkled. |
Measurements
No measurements are available
No ecological data are available
Age range: base of the Llandovery to the top of the Burdigalian or 443.10000 to 15.98000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Llandovery - Pridoli | USA (Alabama) | A. ludwigae (210745) | |
| Late/Upper Cenomanian | Uzbekistan | A. sp. (74023) | |
| Burdigalian | Chile | A. sp. (78525) |