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Zugokosmoceras
Taxonomy
Zugokosmoceras was named as a genus. It is not extant.
It was reranked as Kosmoceras (Zugokosmoceras) by Arkell (1939).
It was assigned to Kosmoceras by Arkell (1939); to Kosmoceratidae by Arkell et al. (1957); and to Ammonoidea by Sepkoski (2002).
It was reranked as Kosmoceras (Zugokosmoceras) by Arkell (1939).
It was assigned to Kosmoceras by Arkell (1939); to Kosmoceratidae by Arkell et al. (1957); and to Ammonoidea by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1939 | Kosmoceras (Zugokosmoceras) Arkell |
| 1957 | Zugokosmoceras Arkell et al. p. 300 |
| 2002 | Zugokosmoceras Sepkoski |
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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. †Zugokosmoceras
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†Zugokosmoceras jason Reinecke 1818
†Zugokosmoceras obductum Buckman 1925
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 20.1 | 14.0 | 29.0 | 21.5 | 10.6 | |
| shell diameter | 2 | 49.5 | 35.0 | 70.0 | 52.5 | 24.7 | |
| shell inflation | 2 | 13.1 | 9.50 | 18.0 | 13.8 | 6.01 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Early/Lower Callovian or 165.30000 to 161.50000 Ma
Collections (22 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Callovian | Switzerland | Z. jason (171556 171758) | |
| Late/Upper Callovian | Switzerland | Z. jason (171574 171589 171606 171759) Z. obductum (171565) | |
| Middle Callovian | Switzerland | Z. jason (171554 171757) Z. obductum (171592 171595) | |
| Middle Callovian | France | Kosmoceras jason (169932) Z. enodatum (60554 60613) Z. enodatum, Z. medea, Z. jason (60616) Z. jason (60542 60562) Z. medea (60540 60556) Z. obductum (60564 60617) | |
| Middle Callovian - Late/Upper Callovian | Switzerland | Z. jason (171568) |