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Cadoceras (Pseudocadoceras) grewingki
Taxonomy
Cadoceras grewingki was named by Pompeckj (1900).
It was recombined as Pseudocadoceras grewingki by Imlay (1953), Imlay (1961); it was recombined as Cadoceras (Pseudocadoceras) grewingki by Arthur et al. (1993).
It was recombined as Pseudocadoceras grewingki by Imlay (1953), Imlay (1961); it was recombined as Cadoceras (Pseudocadoceras) grewingki by Arthur et al. (1993).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1900 | Cadoceras grewingki Pompeckj p. 258 figs. Pl 6, fig 1 |
| 1953 | Pseudocadoceras grewingki Imlay p. 93 figs. Pl 49, figs 1-12 |
| 1961 | Pseudocadoceras grewingki Imlay pp. D-21 figs. Plate 2, figures 1-8, 11-13 |
| 1993 | Cadoceras (Pseudocadoceras) grewingki Arthur et al. p. 40 figs. Pl 6, figs 1-5 |
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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.
†Cadoceras (Pseudocadoceras) grewingki Pompeckj 1900
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 10.1 | 7.00 | 17.5 | 9.00 | 4.07 | |
| shell diameter | 6 | 23.5 | 15.6 | 43.0 | 20.9 | 10.4 | |
| shell inflation | 6 | 6.07 | 4.10 | 10.0 | 5.50 | 2.48 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Callovian to the top of the Early/Lower Kimmeridgian or 165.30000 to 152.21000 Ma
Collections (28 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Callovian | USA (Alaska) | Pseudocadoceras grewingki (5226 158664 158667 158682 158896 158897 158898 158899 158908 158910 158915 158916 158920 158921 158922 158926 158930 158935 158937 158951 158952 158958) | |
| Early/Lower Callovian | Canada (British Columbia) | Cadoceras grewingki (185051 185056 185059) | |
| Callovian - Early/Lower Kimmeridgian | USA (California) | Pseudocadoceras grewingki (192816 192818) | |
| Late/Upper Jurassic | USA (California) | Pseudocadoceras grewingki (192831) |