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Sphyrna laevissima
Taxonomy
Galeocerdo laevissimus was named by Cope (1867). It is a 3D body fossil. Its type locality is James T. Thomas estate, which is in a Serravallian offshore shelf horizon in the Calvert Formation of Maryland.
It was recombined as Carcharias laevissimus by Eastman (1904); it was recombined as Sphyrna laevissima by Leriche (1942), Casier (1958), Casier (1966), Reinecke and Radwanski (2015), Carrillo-Briceño et al. (2016) and Kent (2018).
It was recombined as Carcharias laevissimus by Eastman (1904); it was recombined as Sphyrna laevissima by Leriche (1942), Casier (1958), Casier (1966), Reinecke and Radwanski (2015), Carrillo-Briceño et al. (2016) and Kent (2018).
Synonymy list
| Year | Name and author |
|---|---|
| 1867 | Galeocerdo laevissimus Cope p. 141 figs. Plate XXXI, Fig. 2 |
| 1868 | Galeocerdo laevissimus Cope p. 141 |
| 1902 | Galeocerdo laevissimus Hay p. 311 |
| 1904 | Carcharias laevissimus Eastman p. 84 figs. Plate XXXI, Fig. 2 |
| 1942 | Sphyrna laevissima Leriche p. 84 |
| 1958 | Sphyrna laevissima Casier p. 40 |
| 1966 | Sphyrna laevissima Casier p. 503 |
| 2015 | Sphyrna laevissima Reinecke and Radwanski p. 13 |
| 2016 | Sphyrna laevissima Carrillo-Briceño et al. p. 88 |
| 2018 | Sphyrna laevissima Kent p. 121 |
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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.
†Sphyrna laevissima Cope 1867
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Hendy et al. 2009, Wagner 2023, Carroll 1988 | |||||
Age range: base of the Late/Upper Eocene to the top of the Badenian or 37.20000 to 12.70000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Priabonian | Barbados | Sphyrna laevissima (205153) | |
| Late/Upper Eocene | Barbados | Sphyrna laevissima (220735) | |
| Aquitanian | Oman | Sphyrna laevissima (224898) | |
| Aquitanian | Colombia (La Guajira) | Sphyrna laevissima (182218) | |
| Burdigalian - Langhian | USA (Maryland) | Sphyrna laevissima (18518) | |
| Serravallian | USA (Maryland) | Carcharias laevissimus (57782) Galeocerdo laevissimus (type locality: 55396) | |
| Badenian | Belgium | Sphyrna laevissima (208831) | |
| Badenian | Poland | Sphyrna laevissima (162017) |