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Balkoceratidae
Taxonomy
Balkoceratidae was named by Flower (1964). It is not extant.
It was assigned to Plectronoceratina by Flower (1964); and to Ellesmerocerida by Crick (1981).
It was assigned to Plectronoceratina by Flower (1964); and to Ellesmerocerida by Crick (1981).
Subtaxa
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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. †Balkoceratidae Flower 1964
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Aberhan et al. 2004, Kiessling 2004 | |||||
Age range: Trempealeauan or 492.50000 to 485.40000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Trempealeauan | USA (Texas) | Balkoceras gracile (88784) |