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Asteriacites
Taxonomy
Asteriacites was named by von Schlotheim (1820). It is considered to be a form taxon. Its type is Asteriacites lumbricalis. It was considered unknown by Knaust and Neumann (2016).
It was assigned to Ichnofossils by Hantzschel (1975); and to Asteriacitidae by Knaust and Neumann (2016).
It was assigned to Ichnofossils by Hantzschel (1975); and to Asteriacitidae by Knaust and Neumann (2016).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1820 | Asteriacites von Schlotheim |
| 1975 | Asteriacites Hantzschel |
| 2016 | Asteriacites Knaust and Neumann |
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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. †Asteriacites von Schlotheim 1820
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†Asteriacites lumbricalis Seilacher 1953
†Asteriacites quinquefolius Quenstedt 1876
†Asteriacites stelliformis Miller and Dyer 1878
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. Hantzschel 1975 | Impressions in form of asteroids or ophiuroids, with transversely sculptured arms; their striae produced by activity of digging tube feet; often intersected by traces of neighboring animals (“horizontal repetition”) or (as reaction to rapid sedimentation) “vertical repetition”; morphology dependent on preservation as convex hyporelief or concave epirelief. | |
| D. Knaust and C. Neumann 2016 | Star-shaped, commonly pentamerous imprints and shallowly excavated pits with arms grading from a central area and continuously tapering distally (emended after Seilacher, 1953). |