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Pachydiscus (Pachydiscus) haldemsis
Taxonomy
Ammonites haldemsis was named by Schluter (1867).
It was recombined as Pachydiscus haldemsis by Arkadiev et al. (2000) and Courville and Odin (2001); it was recombined as Pachydiscus (Pachydiscus) haldemsis by Kennedy (1986) and Niebuhr et al. (2016).
It was recombined as Pachydiscus haldemsis by Arkadiev et al. (2000) and Courville and Odin (2001); it was recombined as Pachydiscus (Pachydiscus) haldemsis by Kennedy (1986) and Niebuhr et al. (2016).
Sister species lacking formal opinion data
Synonyms
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Synonymy list
Year | Name and author |
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1867 | Ammonites haldemsis Schluter p. 19 figs. Pl 3, fig 1 |
1872 | Ammonites auritocostatus Schlüter p. 70 figs. Pl 22, figs 6,7 |
1894 | Pachydiscus koeneni de Grossouvre p. 178 |
1913 | Pachydiscus kaliszanensis Nowak p. 359 figs. Pl 40, fig 8 |
1986 | Pachydiscus (Pachydiscus) haldemsis Kennedy p. 45 figs. Pl 4, figs 1-3; pl 5, figs 7-14; text-figs 11A-D,F,G, 17 |
2000 | Pachydiscus haldemsis Arkadiev et al. p. 111 figs. Pl 13, figs 1-3 |
2001 | Pachydiscus haldemsis Courville and Odin p. 534 figs. Pl 3, figs 25,28; pl 6, fig 44 |
2016 | Pachydiscus (Pachydiscus) haldemsis Niebuhr et al. p. 211 figs. 7, 8A |
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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.
†Pachydiscus (Pachydiscus) haldemsis Schluter 1867
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Invalid names: Ammonites auritocostatus Schlüter 1872 [synonym], Pachydiscus kaliszanensis Nowak 1913 [synonym], Pachydiscus koeneni de Grossouvre 1894 [synonym]
Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 2 | 73.0 | 72.0 | 74.0 | 73.0 | 1.41 | |
shell diameter | 2 | 226.2 | 215.0 | 238.0 | 226.5 | 16.3 | |
shell inflation | 2 | 51.6 | 43.0 | 62.0 | 52.5 | 13.4 |
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Source: o = order, c = class | |||||
References: Kiessling 2003, Kiessling 2004 |
Age range: base of the Late/Upper Campanian to the top of the Early/Lower Maastrichtian or 83.50000 to 66.00000 Ma
Collections (18 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Campanian | Turkey | Pachydiscus haldemsis (130883 130884) | |
Late/Upper Campanian | Austria | Pachydiscus haldemsis (48008) | |
Late/Upper Campanian | France (Landes) | Pachydiscus haldemsis (38808 38811 213818 213867 214028) | |
Late/Upper Campanian | Ukraine | Pachydiscus haldemsis (183317) | |
Late/Upper Campanian | Iran | Pachydiscus haldemsis (174522 174535) | |
Late/Upper Campanian | Germany | Pachydiscus koeneni (64128 64142 64143 64181) | |
Late/Upper Campanian | France | Pachydiscus haldemsis (165839 165840) | |
Early/Lower Maastrichtian | France (Landes) | Pachydiscus haldemsis (214180) |