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Harpoceras subplanatum
Taxonomy
Ammonites subplanatus was named by Oppel (1856).
It was recombined as Harpoceras (Harpoceras) subplanatum by Bécaud (2006) and Kovács (2011); it was recombined as Harpoceras subplanatum by Guex (1972), Howarth (1992), Stevens (2007) and Benzaggagh et al. (2022).
It was recombined as Harpoceras (Harpoceras) subplanatum by Bécaud (2006) and Kovács (2011); it was recombined as Harpoceras subplanatum by Guex (1972), Howarth (1992), Stevens (2007) and Benzaggagh et al. (2022).
Sister species lacking formal opinion data
Synonyms
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Synonymy list
Year | Name and author |
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1846 | Ammonites complanatus d'Orbigny p. 353 figs. Pl. 114, figs 1–2, 4 (non fig. 3). |
1856 | Ammonites subplanatus Oppel p. 244 |
1972 | Harpoceras subplanatum Guex figs. Pl 5, fig 8 |
1992 | Harpoceras subplanatum Howarth p. 136 figs. Pl 22, figs 4-7; pl 23, figs 1-3; text-figs 18H,29,35,36 |
2006 | Harpoceras (Harpoceras) subplanatum Bécaud p. 65 figs. Pl 25, fig 1; pl 31, fig 2 |
2007 | Harpoceras subplanatum Stevens p. 379 figs. 3-5 |
2011 | Harpoceras (Harpoceras) subplanatum Kovács p. 32 figs. Pl 8, figs 3,4; pl 11, fig 3 |
2022 | Harpoceras subplanatum Benzaggagh et al. p. 13 figs. 10F-H |
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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.
†Harpoceras subplanatum Oppel 1856
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Invalid names: Ammonites complanatus d'Orbigny 1846 [replaced]
Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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height | 2 | 80.0 | 80.0 | 80.0 | 80.0 | - | |
diameter | 2 | 170.0 | 170.0 | 170.0 | 170.0 | - | |
inflation | 2 | 33.5 | 33.0 | 34.0 | 33.5 | 0.707 | |
shell height | 3 | 53.2 | 36.5 | 98.0 | 42.0 | 34.0 | |
shell diameter | 3 | 102.9 | 71.0 | 210.0 | 73.0 | 79.7 | |
shell inflation | 3 | 18.5 | 10.0 | 44.0 | 14.5 | 18.5 |
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Source: o = order, c = class | |||||
References: Kiessling 2003, Kiessling 2004 |
Age range: base of the Toarcian to the top of the Late/Upper Toarcian or 182.70000 to 175.60000 Ma
Collections (45 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Early/Lower Jurassic | Italy (Trento) | Ammonites complanatus (232106) | |
Ururoan | New Zealand | Harpoceras subplanatum (134146 137844) | |
Early/Lower Toarcian | Canada (British Columbia) | Harpoceras subplanatum (55803) | |
Falciferum | Hungary | Harpoceras subplanatum (148233 148259) | |
Falciferum | Morocco | Harpoceras subplanatum (228342 228343) | |
Early/Lower Toarcian - Middle Toarcian | Canada (British Columbia) | Harpoceras subplanatum (53094 53095 53097 53621 55805 55806 55808) | |
Toarcian | France | Harpoceras subplanatum (210801 210834) | |
Toarcian | Chile (Coquimbo) | Harpoceras subplanatum (222004 222007) | |
Bifrons | Spain (Cantabria) | Harpoceras subplanatum (222291 222292 222297) | |
Bifrons | Spain | Harpoceras subplanatum (126481 126482 146934) | |
Bifrons | France (Deux-Sevrès) | Harpoceras subplanatum (140866 140867 140868 140869 147157 147158 147159 147160) | |
Bifrons | Morocco | Harpoceras subplanatum (228349) | |
Bifrons | France (Vendée) | Harpoceras subplanatum (140787) | |
Bifrons | Italy | Harpoceras subplanatum (147043) | |
Bifrons | France | Harpoceras subplanatum (148788 148789 161649 161653 161654 170473) | |
Middle Toarcian | Canada (British Columbia) | Harpoceras subplanatum (55804 55807) | |
Middle Toarcian - Late/Upper Toarcian | Morocco (Taza-Al Hoceima-Taounate) | Harpoceras subplanatum (234054) |