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Chrysocetus healyorum
Taxonomy
Chrysocetus healyorum was named by Uhen and Gingerich (2001) [South Carolina State Museum]. Its type specimen is SCSM 87.195, a partial skeleton, and it is a 3D body fossil. Its type locality is Santee Portland Cement Co. quarry, which is in a Priabonian marine wackestone/grainstone in the Tupelo Bay Formation of South Carolina.
Synonymy list
| Year | Name and author |
|---|---|
| 2001 | Chrysocetus healyorum Uhen and Gingerich pp. 1-34 figs. 1-10 |
| 2002 | Chrysocetus healyorum Uhen p. 79 |
| 2004 | Chrysocetus healyorum Uhen p. 12 |
| 2004 | Chrysocetus healyorum van Vliet p. 143 |
| 2008 | Chrysocetus healyorum McLeod and Barnes p. 93 |
| 2008 | Chrysocetus healyorum Uhen p. 561 |
| 2011 | Chrysocetus healyorum Schouten p. 18 |
| 2013 | Chrysocetus healyorum Uhen p. 8 figs. Figure 5 |
| 2015 | Chrysocetus healyorum Gingerich and Zouhri p. 278 |
| 2018 | Chrysocetus healyorum Uhen |
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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.
†Chrysocetus healyorum Uhen and Gingerich 2001
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. D. Uhen and P. D. Gingerich 2001 | Chrysocetus healyorum has features of Dorudontinae (particularly vertebral bodies that lack elongation seen in members of the Basilosauridae) but differs from other Dorudontines in having smooth enamel and lacking vertically ori- ented ornamentation on the upper premolars. In addition, the premolars are more gracile than those of Dorudon, and the upper premolars lack crenulations on the mesial and distal cingula like those of Zygorhiza (Kellogg 1936; see Fig. 1). Based on comparable skeletal elements, C. healyorum was larger than Saghacetus osiris and smaller than Pontogeneus bracbyspondylus. | |
| M. D. Uhen 2004 | Chrysocetus healyorum has features of Dorudontinae (particularly vertebral bodies that lack elongation seen in members of the Basilosauridae) but differs from other Dorudontines in having smooth enamel and lacking vertically-oriented ornamentation on the upper premolars. In addition, the premolars are more gracile than those of Dorudon, and the upper premolars lack crenulations on the mesial and distal cingula like those of Zygorhiza (Kellogg 1936; see Fig. 1). Based on comparable skeletal elements, C. healyorum is larger than Saghacetus osiris and smaller than Pontogeneus brachyspondylus. | |
| M. D. Uhen 2013 | Chrysocetus healyorum has vertebral bodies that lack elongation seen in members of the genus Basi- losaurus. C. healyorum also has very smooth enamel and lacks vertically oriented ornamentation on the upper pre- molars. In addition, the premolars are more gracile than those of Dorudon, and the upper premolars lack crenula- tions on the mesial and distal cingula like those of Zygorhi- za. Based on comparable skeletal elements, C. healyorum was larger than Saghacetus osiris and smaller than mem- bers of the genera Dorudon, Cynthiacetus, and Basilosaurus (after Uhen and Gingerich, 2001). |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Uhen 2004 | |||||
Age range: Priabonian or 37.71000 to 33.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Priabonian | USA (South Carolina) | Chrysocetus healyorum (type locality: 122725) |