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Polyplectus
Taxonomy
Polyplectus was named as a genus. It is not extant.
It was reranked as Harpoceras (Polyplectus) by Haas (1913).
It was assigned to Harpoceras by Haas (1913); to Ammonoidea by Sepkoski (2002); and to Harpoceratinae by Pallini et al. (2004), Howarth (2013) and Benzaggagh et al. (2022).
It was reranked as Harpoceras (Polyplectus) by Haas (1913).
It was assigned to Harpoceras by Haas (1913); to Ammonoidea by Sepkoski (2002); and to Harpoceratinae by Pallini et al. (2004), Howarth (2013) and Benzaggagh et al. (2022).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
Year | Name and author |
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1913 | Harpoceras (Polyplectus) Haas |
1973 | Micropolyplectus Guex |
2002 | Polyplectus Sepkoski |
2004 | Polyplectus Pallini et al. p. 7 |
2013 | Polyplectus Howarth p. 76 |
2022 | Polyplectus Benzaggagh et al. p. 10 |
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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. †Polyplectus
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†Polyplectus appenninicus Haas 1913
†Polyplectus discoides Zittel 1831
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Invalid names: Oxynoticeras meunieri Monestier 1921 [synonym]
†Polyplectus pluricostatum Haas 1913
†Polyplectus pluricostatus Haas 1913
Invalid names: Micropolyplectus Guex 1973 [synonym]
Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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height | 5 | 28.9 | 17.0 | 50.0 | 25.0 | 14.9 | |
diameter | 5 | 58.4 | 38.3 | 93.0 | 48.0 | 26.6 | |
inflation | 5 | 8.25 | 4.00 | 19.0 | 9.00 | 6.31 | |
shell height | 2 | 41.0 | 39.8 | 42.2 | 41.0 | 1.70 | |
shell diameter | 2 | 73.0 | 71.2 | 74.8 | 73.0 | 2.55 | |
shell inflation | 2 | 7.21 | 6.50 | 8.00 | 7.25 | 1.06 |
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Source: o = order, c = class | |||||
References: Kiessling 2004, Kiessling 2003 |
Age range: base of the Toarcian to the top of the Hauterivian or 182.70000 to 129.40000 Ma
Collections (115 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Early/Lower Toarcian | Spain (Murcia) | P. discoides (201421) | |
Early/Lower Toarcian | Spain (Granda) | P. discoides (201064 201076 201079 201080 201081 201082) | |
Falciferum | Italy | P. pluricostatus (145310 147074) P. sp. (145318) | |
Falciferum | Spain | P. pluricostatus (114367 114369 146889) | |
Falciferum | France (Deux-Sevrès) | P. pluricostatus (140862) | |
Falciferum | Hungary | P. pluricostatus (148248 148259 148268) | |
Falciferum | Morocco | P. pluricostatum (228344) P. sp., P. pluricostatum (228345) | |
Early/Lower Toarcian - Middle Toarcian | Canada (Yukon) | P. sp. (197430) | |
Toarcian | Canada (British Columbia) | P. sp. (37557) | |
Toarcian | France | P. discoides (210796 210798 210820 210861 210864 210877 210878 210880 210881) | |
Bifrons | Hungary | P. pluricostatus (108046 108053 108068 108084 108087 108101 108102 108201 108205 108459 108460 108461 108462 108465 147243 147256 148242) | |
Bifrons | Italy (Sicily) | P. pluricostatus, P. appenninicus (151230) | |
Bifrons | Italy | P. discoides (147041 147043) P. pluricostatus (145312 147028 147029 147030 147034 147036 147039) | |
Levesquei | France (Deux-Sevrès) | P. discoides (140875) | |
Levesquei | Spain | P. discoides (147091 147095 147096 147097 147100) | |
Levesquei | Germany | P. discoides (59423) | |
Levesquei | Hungary | P. pluricostatus (146436) | |
Levesquei | France | P. discoides (148812) | |
Middle Toarcian | Tunisia | P. pluricostatus (170601) | |
Middle Toarcian | Canada (British Columbia) | P. discoides (55779 55780 56339 56340 56343 56344) P. sp. (55795 56348) | |
Middle Toarcian | United Kingdom (Gloucestershire) | P. subplanatus (204111) | |
Middle Toarcian - Late/Upper Toarcian | Morocco (Taza-Al Hoceima-Taounate) | P. discoides, P. appenninicus (234054) | |
Middle Toarcian - Late/Upper Toarcian | Canada (British Columbia) | P. discoides (56345) P. sp. (55792 56350) | |
Variabilis | France | P. pluricostatus (161665) | |
Variabilis | Spain | P. discoides (126520 126521 131824) | |
Variabilis | Luxembourg | P. discoides (141384) | |
Variabilis | Hungary | P. pluricostatus (108469 108471) | |
Late/Upper Toarcian | France | P. discoides (161668 161670 161671) | |
Late/Upper Toarcian | Hungary | P. discoides (108574 108575) | |
Late/Upper Toarcian | Canada (British Columbia) | P. discoides (56341 56342 56347) P. sp. (56349) | |
Late/Upper Toarcian | Spain | P. discoides (73289 147129) | |
Late/Upper Toarcian | Spain (Granada) | P. discoides (201294 201298 201300 201335 201338) | |
Thouarsense | Bulgaria | P. discoides (151010) | |
Thouarsense | Spain | P. discoides (146976 146977 146979 146980 146981 147086 147088 147089) | |
Thouarsense | Hungary | P. discoides (108568 108678) | |
Hauterivian | France | P. quadrifidus (96668) |