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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Tessarolax grahami
Taxonomy
Tessarolax grahami was named by Saul and Squires (2015). Its type specimen is RBCM.EH2011.007.0008 and is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2015 | Tessarolax grahami Saul and Squires pp. 49 - 52 figs. Figures 32, 42–49 |
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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.
†Tessarolax grahami Saul and Squires 2015
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. R. Saul and R. L. Squires 2015 | Mature last whorl bicarinate, anterior carina forming high crest of three short spines (middle spine largest) on elevated thin dorsal septum; callus covering shell; fictavarix narrow and somewhat knob-shaped, extending ventrally to form stabilizer. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: Middle Campanian or 83.60000 to 72.20000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Campanian | USA (California) | Tessarolax distorta (3885) | |
| Middle Campanian | USA (California) | Tessarolax distorta (220926) |