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Ectogrammysia hannibalensis
Taxonomy
Allorisma hannibalensis was named by Shumard and Swallow (1858) [Shumard in]. It is not a trace fossil.
It was recombined as Grammysia hannibalensis by Walcott (1884) and Williams (1943); it was recombined as Ectogrammysia hannibalensis by Hoare et al. (1989).
It was recombined as Grammysia hannibalensis by Walcott (1884) and Williams (1943); it was recombined as Ectogrammysia hannibalensis by Hoare et al. (1989).
Synonymy list
| Year | Name and author |
|---|---|
| 1858 | Allorisma hannibalensis Shumard and Swallow |
| 1884 | Grammysia hannibalensis Walcott p. 244 figs. Plate xx, fig. 4 |
| 1943 | Grammysia hannibalensis Williams |
| 1989 | Ectogrammysia hannibalensis Hoare et al. p. 598 |
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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.
†Ectogrammysia hannibalensis Shumard and Swallow 1858
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Hendy 2009, Aberhan et al. 2004 | |||||
Age range: base of the Late/Upper Famennian to the top of the Kinderhookian or 364.70000 to 352.00000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Famennian | Canada (Alberta) | Grammysia hannibalensis (35545) | |
| Late/Upper Famennian | USA (Missouri) | Grammysia hannibalensis (6027 6055) | |
| Kinderhookian | USA (Iowa) | Grammysia hannibalensis (5933) |