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Allorisma altirostrata
Taxonomy
Allorisma altirostrata was named by Meek and Hayden (1858). It is a 3D body fossil. Its type locality is East for of Grasshopper Creek (= Delaware River) at Osawkee village, which is in a Virgilian carbonate limestone/shale in the Foraker Limestone Formation of Kansas.
It was recombined as Sedgwickia altirostrata by Meek and Hayden (1864); it was recombined as Exochorhynchus altirostratus by Astaf'yeva-Urbaytis (1981).
It was recombined as Sedgwickia altirostrata by Meek and Hayden (1864); it was recombined as Exochorhynchus altirostratus by Astaf'yeva-Urbaytis (1981).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1858 | Allorisma altirostrata Meek and Hayden p. 263 |
| 1864 | Sedgwickia altirostrata Meek and Hayden p. 41 figs. pl. 1 f. 9 |
| 1981 | Exochorhynchus altirostratus Astaf'yeva-Urbaytis p. 31 |
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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.
†Allorisma altirostrata Meek and Hayden 1858
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||