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Polyacrodus
Taxonomy
Polyacrodus was named by Jaekel (1889) [Sepkoski's age data: Tr Indu-u K Camp-l Sepkoski's reference number: 884]. Its type is Hybodus polycyphus.
It was reranked as Hybodus (Polyacrodus) by Dalinkevičius (1935).
It was assigned to Hybodus by Dalinkevičius (1935); to Heterodontidae by Jordan (1963); to Hybodontidae by Maisey (1987); to Ctenacanthida by Sepkoski (2002); and to Polyacrodontidae by Biddle (1993), Johns (1997), Duffin (1998), Chhabra and Mishra (2002), Underwood and Rees (2002), Delsate et al. (2002), Cicimurri (2003), Yamagishi (2004), Everhart (2004), Cahuzac et al. (2007), Ginter et al. (2010), Siversson and Machalski (2017) and Skinner et al. (2020).
It was reranked as Hybodus (Polyacrodus) by Dalinkevičius (1935).
It was assigned to Hybodus by Dalinkevičius (1935); to Heterodontidae by Jordan (1963); to Hybodontidae by Maisey (1987); to Ctenacanthida by Sepkoski (2002); and to Polyacrodontidae by Biddle (1993), Johns (1997), Duffin (1998), Chhabra and Mishra (2002), Underwood and Rees (2002), Delsate et al. (2002), Cicimurri (2003), Yamagishi (2004), Everhart (2004), Cahuzac et al. (2007), Ginter et al. (2010), Siversson and Machalski (2017) and Skinner et al. (2020).
Species
P. brevicostatus, P. claveringensis, P. cloacinus, P. heterodon, P. illingworthi, P. jiangxiensis, P. krafti, P. lapalomensis, P. maiseyi, P. minimus, P. parvidens, P. polycyphus (syn. Orodus triadeus), P. pyramidalis, P. ritchiei, P. tiandongensis, P. tregoi, P. tuberculatus, P. wichitaensis, P. zideki
Synonymy list
| Year | Name and author |
|---|---|
| 1889 | Polyacrodus Jaekel p. 321 |
| 1935 | Hybodus (Polyacrodus) Dalinkevičius p. 256 |
| 1963 | Polyacrodus Jordan p. 596 |
| 1987 | Polyacrodus Maisey p. 27 |
| 1993 | Polyacrodus Biddle p. 197 |
| 1997 | Polyacrodus Johns p. 31 |
| 1998 | Polyacrodus Duffin p. 244 |
| 2002 | Polyacrodus Chhabra and Mishra p. 152 figs. pl. 1, fig. 1 |
| 2002 | Polyacrodus Delsate et al. p. 12 |
| 2002 | Polyacrodus Sepkoski |
| 2002 | Polyacrodus Underwood and Rees p. 93 |
| 2003 | Polyacrodus Cicimurri p. 5 fig. N/A |
| 2004 | Polyacrodus Everhart |
| 2004 | Polyacrodus Yamagishi p. 570 |
| 2007 | Polyacrodus Cahuzac et al. p. 9 |
| 2010 | Polyacrodus Ginter et al. p. 91 |
| 2017 | Polyacrodus Siversson and Machalski p. 439 |
| 2020 | Polyacrodus Skinner et al. |
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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.
G. †Polyacrodus Jaekel 1889
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†Polyacrodus brevicostatus Patterson 1966
†Polyacrodus claveringensis Stensiö 1932
†Polyacrodus cloacinus Quenstedt 1858
†Polyacrodus heterodon Patterson 1966
†Polyacrodus illingworthi Dixon 1850
†Polyacrodus jiangxiensis Wang et al. 2007
†Polyacrodus krafti Seilacher 1943
†Polyacrodus lapalomensis Johnson 1981
†Polyacrodus maiseyi Landemaine 1991
†Polyacrodus minimus Agassiz 1939
†Polyacrodus parvidens Woodward 1916
†Polyacrodus pyramidalis Stensiö 1921
†Polyacrodus ritchiei Johnson 1981
†Polyacrodus tiandongensis Wang. et al. 2001
†Polyacrodus tregoi Rieppel et al. 1996
†Polyacrodus tuberculatus Rogovich 1861
†Polyacrodus wichitaensis Johnson 1981
†Polyacrodus zideki Johnson 1981
Diagnosis
No diagnoses are available