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Phyllopachyceras umpquanum
Taxonomy
Phylloceras umpquanum was named by Anderson (1938).
It was recombined as Phyllopachyceras umpquanum by Murphy and Rodda (2006).
It was recombined as Phyllopachyceras umpquanum by Murphy and Rodda (2006).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1938 | Phylloceras umpquanum Anderson pp. 143 - 144 figs. Plate 30, figures 9, 10 |
| 2006 | Phyllopachyceras umpquanum Murphy and Rodda p. 65 figs. Plate 7, Figures 10, 11 |
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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.
†Phyllopachyceras umpquanum Anderson 1938
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. A. Murphy and P. U. Rodda 2006 | A small, inflated Phyllopachyceras with cross section wider than high, two ranks of fine ribbing of equal sizes, one extends across flanks and venter, the other restricted to upper flanks and venter. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009, Kiessling 2003 | |||||
Age range: Hauterivian or 132.90000 to 129.40000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hauterivian | USA (Oregon) | Phylloceras umpquanum (45688) Phyllopachyceras umpquanum (45673 83575 83577 83578 83582 157773 157774) |