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Obrucheviidae
Taxonomy
Obrucheviidae was named by Halstead Tarlo (1964). It is not extant.
It was assigned to Psammosteiformes by Halstead Tarlo (1964); and to Psammosteoidei by van der Laan (2019).
It was assigned to Psammosteiformes by Halstead Tarlo (1964); and to Psammosteoidei by van der Laan (2019).
Subtaxa
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1955 | Aspidosteidae Berg p. 23 |
| 1964 | Obrucheviidae Halstead Tarlo |
| 2019 | Obrucheviidae van der Laan p. 18 |
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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.
Fm. †Obrucheviidae Halstead Tarlo 1964
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G. †Aspidosteus Obruchev 1941
Invalid names: Aspidosteidae Berg 1955 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| References: Carroll 1988, Kiessling 2004 | |||||
Age range: base of the Middle Frasnian to the top of the Late/Upper Frasnian or 379.00000 to 372.15000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Frasnian | Canada (Nunavut) | Perscheia pulla (236499) | |
| Late/Upper Frasnian | Russian Federation | Obruchevia heckeri (238745) |