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Cretodus semiplicatus
Taxonomy
Otodus semiplicatus was named by Agassiz (1843).
It was recombined as Lamna semiplicata by Woodward (1889), Dalinkevičius (1935), Cappetta (1973); it was recombined as Cretodus semiplicatus by Müller and Diedrich (1991), Cappetta and Case (1999), Cicimurri (2001), Case (2001), Schwimmer et al. (2002), Shimada et al. (2006), Shimada and Martin (2008), Cook et al. (2008), Cook et al. (2013), Maisch et al. (2021), Juranek and Shimada (2025).
It was recombined as Lamna semiplicata by Woodward (1889), Dalinkevičius (1935), Cappetta (1973); it was recombined as Cretodus semiplicatus by Müller and Diedrich (1991), Cappetta and Case (1999), Cicimurri (2001), Case (2001), Schwimmer et al. (2002), Shimada et al. (2006), Shimada and Martin (2008), Cook et al. (2008), Cook et al. (2013), Maisch et al. (2021), Juranek and Shimada (2025).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1843 | Otodus semiplicatus Agassiz figs. Pl 36, figs 32,33 |
| 1843 | Otodus sulcatus Geinitz p. 5 |
| 1860 | Otodus michoni Coquand |
| 1872 | Otodus divaricatus Leidy |
| 1873 | Otodus divaricatus Leidy p. 305 |
| 1873 | Otodus semiplicatus Leidy p. 306 |
| 1888 | Otodus crassus Woodward p. 292 |
| 1889 | Lamna semiplicata Woodward p. 397 |
| 1889 | Lamna sulcata Woodward p. 398 |
| 1900 | Scyllium rugosus Williston |
| 1902 | Otodus divaricatus Hay p. 304 |
| 1902 | Scylliorhinus rugosus Hay p. 310 |
| 1903 | Otodus sulcatus Hay p. 397 figs. Pl 26, figs 3,4 |
| 1935 | Lamna semiplicata Dalinkevičius p. 271 figs. Pl 5, figs 110,111 |
| 1942 | Otodus sulcatus Woodward p. 562 |
| 1971 | Lamna sulcata Thurmond pp. 218-220 |
| 1973 | Lamna semiplicata Cappetta p. 506 figs. Pl 1, figs 7-7' |
| 1991 | Cretodus semiplicatus Müller and Diedrich p. 33 |
| 1999 | Cretodus semiplicatus Cappetta and Case p. 21 figs. Pl 14, figs 1-4; text-figs 3,4 |
| 2001 | Cretodus semiplicatus Case p. 108 figs. Pl 2, fig 8 |
| 2001 | Cretodus semiplicatus Cicimurri p. 187 fig. 5i |
| 2002 | Cretodus semiplicatus Schwimmer et al. p. 704 figs. Fig. 1 |
| 2006 | Cretodus semiplicatus Shimada et al. p. 14 figs. 10.3, 10.4 |
| 2007 | Cretodus michoni Cahuzac et al. p. 16 |
| 2008 | Cretodus semiplicatus Cook et al. p. 1190 fig. 4D |
| 2008 | Cretodus semiplicatus Shimada and Martin p. 94 fig. 6I |
| 2013 | Cretodus semiplicatus Cook et al. p. 574 fig. 12A |
| 2021 | Cretodus semiplicatus Maisch et al. pp. 10, 15 figs. 7L-M |
| 2025 | Cretodus semiplicatus Juranek and Shimada p. 12 fig. 4H |
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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.
†Cretodus semiplicatus Agassiz 1843
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Invalid names: Otodus crassus Woodward 1888 [synonym], Otodus divaricatus Leidy 1872 [synonym], Otodus michoni Coquand 1860 [synonym], Otodus sulcatus Geinitz 1843 [synonym], Scyllium rugosus Williston 1900 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009, Wagner 2023 | |||||
Age range: base of the Late/Upper Aptian to the top of the Santonian or 119.57000 to 83.60000 Ma
Collections (42 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aptian | USA (Texas) | Lamna sulcata (99154) | |
| Late/Upper Aptian - Early/Lower Albian | Tunisia (Tataouine) | Cretodus semiplicatus (125935) | |
| Early/Lower Albian | USA (Texas) | Lamna sulcata (99146) | |
| Albian | USA (Texas) | Lamna sulcata (99143 99147 99149 99152 99155 99157 99158) | |
| Albian | Tunisia (Tataouine) | Cretodus semiplicatus (116297) | |
| Late/Upper Albian | Lithuania | Lamna semiplicata (213709 213710) | |
| Late/Upper Albian | USA (Texas) | Cretodus semiplicatus (213307) | |
| Cenomanian | Germany (Westphalia) | Cretodus semiplicatus (210063) | |
| Early/Lower Cenomanian | France (Poitou-Charentes) | Cretodus semiplicatus (73862 77229 77230 77232) | |
| Late/Upper Cenomanian | Lebanon | Otodus sulcatus (221230 221233) | |
| Late/Upper Cenomanian | USA (Kansas) | Cretodus semiplicatus (213416 213419) | |
| Late/Upper Cenomanian | USA (Minnesota) | Cretodus semiplicatus (61819) | |
| Late/Upper Cenomanian | France (Poitou-Charentes) | Cretodus semiplicatus (88991 110466) | |
| Middle Cenomanian | USA (Colorado) | Cretodus semiplicatus (35429) | |
| Middle Cenomanian | USA (South Dakota) | Cretodus semiplicatus (241422 241423) | |
| Middle Cenomanian | Canada (Alberta) | Cretodus semiplicatus (213314 213318) | |
| Middle Cenomanian | USA (Nebraska) | Cretodus semiplicatus (213401 239336) | |
| Early/Lower Turonian | Canada (Alberta) | Cretodus semiplicatus (136242) | |
| Late/Upper Turonian | USA (South Dakota) | Lamna semiplicata (213291) | |
| Late/Upper Turonian | USA (Texas) | Cretodus semiplicatus (213299) | |
| Middle Turonian | USA (New Mexico) | Cretodus semiplicatus (179267) | |
| Turonian | France (Charente) | Cretodus semiplicatus (161748) | |
| Turonian - Coniacian | USA (New Mexico) | Cretodus semiplicatus (221290) | |
| Late/Upper Santonian | USA (Alabama) | Cretodus semiplicatus (78137) | |
| Santonian | USA (Georgia) | Cretodus semiplicatus (5159 152687) |