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Allocryptaspis
Taxonomy
Allocryptaspis was named by Bryant and Ruedemann (1934) [Sepkoski's age data: D Sieg-l Sepkoski's reference number: 2]. It is not extant.
It was assigned to Pteraspidomorphes by Sepkoski (2002).
It was assigned to Pteraspidomorphes by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1934 | Allocryptaspis Bryant and Ruedemann |
| 2002 | Allocryptaspis Sepkoski |
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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. †Allocryptaspis Bryant and Ruedemann 1934
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†Allocryptaspis elliptica Bryant and Ruedemann 1934
†Allocryptaspis laticostatus Denison 1960
†Allocryptaspis sandbergi Elliot et al. 2004
†Allocryptaspis utahensis Denison 1953
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| References: Carroll 1988, Kiessling 2004 | |||||
Age range: base of the Lochkovian to the top of the Emsian or 419.62000 to 393.47000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lochkovian - Pragian | USA (Ohio) | A. laticostatus (26874) | |
| Emsian | USA (Wyoming) | A. flabelliformis, A. elliptica (26176) | |
| Emsian | USA (Utah) | A. sandbergi (239073) A. utahensis (233171) |