| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Helicotoma robinsoni
Taxonomy
Helicotoma robinsoni was named by Rohr (1988). It is not extant. Its type locality is USNM 36394, Teller Quadrangle, Don River area, York Mountain, Seward Peninsula, which is in a Richmondian carbonate wackestone/packstone in the Port Clarence Limestone Formation of Alaska.
Synonymy list
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
†Helicotoma robinsoni Rohr 1988
show all | hide all
Diagnosis
No diagnoses are available
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
| Source: g = genus, c = class | |||||
| References: Wagner 2023, Kiessling 2004 | |||||
Age range: Richmondian or 449.60000 to 445.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Richmondian | USA (Alaska) | Helicotoma robinsoni (type locality: 49346) |