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Spatangus pachecoensis
Taxonomy
Spatangus pachecoensis was named by Pack (1909) ["All specimens yet found are poorly preserved, being casts or impressions and are badly crushed."].
Sister species lacking formal opinion data
Entered
by J. Marcot on 2018-03-14
Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Spatangus pachecoensis Pack p. 276 figs. Pl. 23, figs. 4 and 5 |
| 1915 | Spatangus pachecoensis Clark and Twitchell p. 156 |
| 1920 | Spatangus pachecoensis Kew pp. 155 - 156 figs. Plate 42, figures 4a, 4b, 4c, 4d |
| 1938 | Spatangus pachecoensis Grant and Hertlein p. 132 |
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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.
†Spatangus pachecoensis Pack 1909
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Kiessling 2004, Aberhan 1992 | |||||
Age range: Late/Upper Eocene or 37.71000 to 33.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Eocene | USA (California) | Spatangus pachecoensis (203466) |