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Birgeria acuminata
Taxonomy
Saurichthys acuminatus was named by Agassiz (1843). Its type specimen is BRSUG 7976 and is a 3D body fossil. Its type locality is Rhaetic Bone Bed, Aust Cliff, which is in a Rhaetian coastal conglomerate in the Westbury Formation of the United Kingdom.
It was recombined as Severnichthys acuminatus by Storrs (1994); it was recombined as Birgeria acuminata by Stensiö (1921), Duffin and Gazdzicki (1977), Bürgin and Furrer (1992), Diependaal and Reumer (2021) and de Lange et al. (2023).
It was recombined as Severnichthys acuminatus by Storrs (1994); it was recombined as Birgeria acuminata by Stensiö (1921), Duffin and Gazdzicki (1977), Bürgin and Furrer (1992), Diependaal and Reumer (2021) and de Lange et al. (2023).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1843 | Saurichthys acuminatus Agassiz figs. Pl 55a, figs 1-5 |
| 1844 | Saurichthys longiconus Plieninger p. 119 figs. pl. xii; figs. 90, 91 |
| 1844 | Saurichthys listroconus Plieninger p. 120 figs. pl. xii; fig. 81 |
| 1876 | Saurichthys acuminatus Henry p. 414 |
| 1895 | Saurichthys acuminatus Woodward p. 21 |
| 1908 | Saurichthys acuminatus Amthor p. 95 figs. Pl 2, figs 8-14 |
| 1921 | Birgeria acuminata Stensiö |
| 1977 | Birgeria acuminata Duffin and Gazdzicki p. 338 figs. Pl 1, fig 8 |
| 1992 | Birgeria acuminata Bürgin and Furrer p. 934 figs. 1-7 |
| 1994 | Severnichthys acuminatus Storrs pp. 234-235 figs. 5B-F, 6 |
| 2002 | Saurichthys acuminatus Chhabra and Mishra p. 153 figs. pl. 1, figs. 5-6 |
| 2021 | Birgeria acuminata Diependaal and Reumer p. 3 figs. 2e-f |
| 2023 | Birgeria acuminata de Lange et al. p. 7 figs. 5E-G |
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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.
†Birgeria acuminata Agassiz 1843
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Invalid names: Saurichthys listroconus Plieninger 1844 [synonym], Saurichthys longiconus Plieninger 1844 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, o = order, subp = subphylum | |||||
| References: Devyatov et al. 2005, Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Anisian to the top of the Pliensbachian or 247.20000 to 182.70000 Ma
Collections (35 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Anisian | India (Uttaranchal) | Saurichthys acuminatus (153318) | |
| Carnian | Germany | Saurichthys acuminatus (47402 47407) | |
| Norian - Rhaetian | Belgium | Birgeria acuminata (131520) | |
| Rhaetian | Germany | Saurichthys acuminatus (122369 122370 149329) | |
| Rhaetian | United Kingdom (Northern Ireland) | Saurichthys acuminatus (122368) | |
| Rhaetian | France (Franche-Comté) | Saurichthys acuminatus (149408) | |
| Rhaetian | Poland | Birgeria acuminata (124679) | |
| Rhaetian | France (Bourgogne) | Saurichthys acuminatus (109711) | |
| Rhaetian | United Kingdom (England) | Birgeria acuminata (34760 53829 163305 163310 163317 163318 163319) Saurichthys acuminatus (type locality: 57958 120898 122364 122365 122366 122367) | |
| Rhaetian | Slovakia | Birgeria acuminata (149495) | |
| Rhaetian | Switzerland | Birgeria acuminata (138750 195672) | |
| Rhaetian | Netherlands | Birgeria acuminata (137658 137660) | |
| Rhaetian | Belgium (Gaume) | Birgeria acuminata (139198 139199 139202 139204) | |
| Rhaetian | Germany (Vienna) | Birgeria acuminata (189823) | |
| Pliensbachian | United Kingdom (England) | Saurichthys acuminatus (105605) |