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Pachyosteus
Taxonomy
Pachyosteus was named by Jaeckel (1903) [Sepkoski's age data: D Fras-u Sepkoski's reference number: 521]. It is not extant.
It was assigned to Dinichthyidae by Jordan (1963); to Arthrodira by Sepkoski (2002); and to Selenosteidae by Denison (1978) and Rücklin (2011).
It was assigned to Dinichthyidae by Jordan (1963); to Arthrodira by Sepkoski (2002); and to Selenosteidae by Denison (1978) and Rücklin (2011).
Species
Synonymy list
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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: o = order, subp = subphylum | |||||
| Reference: Carroll 1988 | |||||
Age range: Middle Frasnian or 382.40000 to 379.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Frasnian | Poland (Swietokrzyskie Voivodship) | P. bulla (226394) |