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Lystra richardsoni
Taxonomy
Lystra richardsoni was named by Scudder (1878). Its type specimen is 67, an exoskeleton (fragmentary), and it is a compression fossil. Its type locality is Petrified fish cut (Scudder collection), which is in a Bridgerian lacustrine - large diatomite/shale in the Green River Formation of Wyoming.
Synonymy list
| Year | Name and author |
|---|---|
| 1878 | Lystra richardsoni Scudder p. 772 |
| 1890 | Lystra richardsoni Scudder p. 283 figs. Pl 6 figs 24, 30, 31; Pl 7 figs 1, 3 |
| 2004 | Lystra richardsoni Szwedo et al. p. 54 |
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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.
†Lystra richardsoni Scudder 1878
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Kiessling 2004, Bush and Bambach 2015 | |||||
Age range: Bridgerian or 50.50000 to 46.20000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Bridgerian | USA (Wyoming) | Lystra richardsoni (121306 type locality: 121322 122090 122092) |