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Tetragregnon japonicum
Taxonomy
Tetragregnon japonicum was named by Sashida and Tonishi (1985). It is not extant.
Synonymy list
Year | Name and author |
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1985 | Tetragregnon japonicum Sashida and Tonishi |
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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.
†Tetragregnon japonicum Sashida and Tonishi 1985
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: p = phylum | |||||
Reference: Kiessling 1999 |
Age range: Wuchiapingian or 259.90000 to 254.17000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Wuchiapingian | China (Guangxi) | Tetragregnon japonicum (95627) |