| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Orbitoproetus (Helmutia) was named by Feist and Orth (2000). Its type is Helmutia rissanensis.
It was reranked as Helmutia by Bault et al. (2021).
It was assigned to Orbitoproetus by Feist and Orth (2000); and to Proetinae by Bault et al. (2021).
It was reranked as Helmutia by Bault et al. (2021).
It was assigned to Orbitoproetus by Feist and Orth (2000); and to Proetinae by Bault et al. (2021).
Subtaxa
H. rissanensis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Orbitoproetus (Helmutia) Feist and Orth |
| 2021 | Helmutia Bault et al. pp. Appendix 7 |
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Fortey and Owens 1999, Aberhan et al. 2004, Hendy 2009 | |||||
Age range: base of the Late/Upper Eifelian to the top of the Early/Lower Givetian or 390.50000 to 385.90000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Eifelian | Morocco | Orbitoproetus rissanensis (234949) | |
| Early/Lower Givetian | Morocco | Orbitoproetus rissanensis (234948 234950) |