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Trachydomia turbonitella
Taxonomy
Trachydomia turbonitella was named by Batten (1995). Its type specimen is AMNH 44950, a shell, and it is not a trace fossil. Its type locality is AMNH locality 2015, Powwow Canyon, which is in a Morrowan offshore shelf limestone in the Magdalena Limestone Formation of Texas.
Synonymy list
| Year | Name and author |
|---|---|
| 1995 | Trachydomia turbonitella Batten p. 28 figs. 39a-c |
| 2001 | Trachydomia turbonitella Kues and Batten pp. 64 - 65 figs. f. 12.29-12.30 |
| 2023 | Trachydomia turbonitella Wagner p. 5991 |
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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.
†Trachydomia turbonitella Batten 1995
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Batten 1995 | Relatively high-spired, naticiform shells with rows of coarse nodes.
Early whorls evenly rounded and unomamented. 3rd to 4th whorls may have a subsutural trough bounded by sharply defined suture and row of nodes rounded or elongated into asymmetric costae which may extend down to periphery. Whorls embrace just above midwhorl. Another row of nodes is present at base of outer whorl face. By 4th to 5th whorls, an additional, weaker row of nodes appears just above lower whorl face row. By 5th to 6th whorls (the adult whorls) additional midwhorl rows appear so that evenly developed rows of nodes are present across whorl face. Rows are arranged quincunxially. Base is evenly rounded with, in some cases, an additional row of nodes. Columellar lip is swollen with a callus that extends and thickens into parietal region. |
Measurements
No measurements are available
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| Source: c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Morrowan to the top of the Desmoinesian or 323.20000 to 306.00000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Morrowan | USA (Texas) | Trachydomia turbonitella (type locality: 79966) | |
| Desmoinesian | USA (New Mexico) | Trachydomia turbonitella (46536) |