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Kosmoceras spinosum
Taxonomy
Ammonites spinosus was named by Sowerby (1826). It is the type species of Kosmoceras.
It was recombined as Cosmoceras spinosum by Jeannet (1951) and Imlay (1953); it was recombined as Kosmoceras spinosum by Reyment (1971).
It was recombined as Cosmoceras spinosum by Jeannet (1951) and Imlay (1953); it was recombined as Kosmoceras spinosum by Reyment (1971).
Sister species lacking formal opinion data
Synonymy list
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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.
†Kosmoceras spinosum Sowerby 1826
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Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 4 | 13.1 | 10.0 | 23.0 | 11.5 | 6.16 | |
shell diameter | 4 | 31.9 | 23.0 | 55.0 | 28.8 | 14.5 | |
shell inflation | 4 | 10.3 | 7.00 | 16.5 | 10.0 | 4.19 |
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Source: o = order, c = class | |||||
References: Kiessling 2003, Kiessling 2004 |
Age range: base of the Late/Upper Callovian to the top of the Early/Lower Oxfordian or 164.70000 to 155.70000 Ma
Collections (15 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Callovian | United Kingdom (Scotland) | Kosmoceras spinosum (163711 163712 163713) | |
Callovian | USA (Alaska) | Cosmoceras spinosum (158918) | |
Late/Upper Callovian | Germany | Kosmoceras spinosum (62282 62285) | |
Late/Upper Callovian | Switzerland | Cosmoceras spinosum (171552 171572 171588 171589 171752) | |
Late/Upper Callovian | France | Kosmoceras spinosum (60440) | |
Late/Upper Callovian | Sweden | Kosmoceras spinosum (228427) | |
Early/Lower Oxfordian | Switzerland | Cosmoceras spinosum (171566 171602) |