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Cadoceras (Pseudocadoceras)
Taxonomy
Pseudocadoceras was named by Buckman (1918) [Sepkoski's age data: J Call-l J Call-m]. It is not extant.
It was reranked as Cadoceras (Pseudocadoceras) by Arthur et al. (1993).
It was assigned to Cadoceratidae by Imlay (1953); to Cadoceratinae by Arkell et al. (1957) and Callomon and Wright (1989); to Cadoceras by Arthur et al. (1993); and to Ammonoidea by Sepkoski (2002).
It was reranked as Cadoceras (Pseudocadoceras) by Arthur et al. (1993).
It was assigned to Cadoceratidae by Imlay (1953); to Cadoceratinae by Arkell et al. (1957) and Callomon and Wright (1989); to Cadoceras by Arthur et al. (1993); and to Ammonoidea by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1918 | Pseudocadoceras Buckman |
| 1953 | Pseudocadoceras Imlay |
| 1957 | Pseudocadoceras Arkell et al. p. 302 |
| 1989 | Pseudocadoceras Callomon and Wright |
| 1993 | Cadoceras (Pseudocadoceras) Arthur et al. p. 40 |
| 2002 | Pseudocadoceras 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.
Subg. †Cadoceras (Pseudocadoceras) Buckman 1918
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†Cadoceras (Pseudocadoceras) catostoma Pompeckj 1900
†Cadoceras (Pseudocadoceras) grewingki Pompeckj 1900
†Pseudocadoceras boreale Buckman 1918
†Pseudocadoceras chinitnense Imlay 1953
†Pseudocadoceras crassicostatum Imlay 1953
†Pseudocadoceras petelini Pompeckj 1900
†Pseudocadoceras schmidti Pompeckj 1900
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 15 | 13.9 | 7.00 | 45.0 | 14.0 | 9.20 | |
| shell diameter | 15 | 32.2 | 15.6 | 103.0 | 32.0 | 21.4 | |
| shell inflation | 15 | 8.75 | 4.10 | 33.0 | 8.50 | 7.32 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Early/Lower Callovian to the top of the Early/Lower Kimmeridgian or 164.70000 to 150.80000 Ma
Collections (55 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Bathonian - Early/Lower Callovian | Russian Federation | Pseudocadoceras sp. (129751) | |
| Callovian | USA (California) | Pseudocadoceras sp. (192819) | |
| Callovian | USA (Alaska) | Cadoceras catostoma (158660 158666 158692 158882 158890 158892 158911 158940 158949 158959 158961) Cadoceras catostoma, Pseudocadoceras grewingki (158682 158908 158910 158916 158920) Pseudocadoceras chinitnense (158656 158671 158672 158675) Pseudocadoceras crassicostatum (158923) Pseudocadoceras grewingki (5226 158664 158667 158896 158897 158898 158899 158915 158921 158922 158951 158952 158958) Pseudocadoceras grewingki, Pseudocadoceras crassicostatum (158926) Pseudocadoceras petelini (158932) Pseudocadoceras petelini, Pseudocadoceras crassicostatum (158933) Pseudocadoceras petelini, Pseudocadoceras grewingki (158930 158935 158937) Pseudocadoceras schmidti (158929) | |
| Callovian | United Kingdom (Scotland) | Pseudocadoceras sp. (163707 163709) | |
| Callovian - Early/Lower Kimmeridgian | USA (California) | Pseudocadoceras grewingki (192816) Pseudocadoceras grewingki, Pseudocadoceras crassicostatum (192818) | |
| Early/Lower Callovian | Canada (British Columbia) | Cadoceras catostoma (185053) Cadoceras grewingki (185051 185056 185059) | |
| Early/Lower Callovian | United Kingdom (Yorkshire) | Pseudocadoceras boreale (222671) | |
| Early/Lower Callovian | Russian Federation | Pseudocadoceras tsytovichae, Pseudocadoceras sp., Pseudocadoceras boreale (38837) | |
| Late/Upper Jurassic | USA (California) | Pseudocadoceras grewingki (192831) | |
| Late/Upper Oxfordian - Early/Lower Kimmeridgian | USA (California) | Pseudocadoceras sp. (192858) |