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Placochlaenia
Taxonomy
Placochlaenia is a genus. It is not extant.
It was assigned to Hexactinosa by Sepkoski (2002); and to Staurodermatidae by Reid (2004).
It was assigned to Hexactinosa by Sepkoski (2002); and to Staurodermatidae by Reid (2004).
Entered
by J. Sepkoski on 2003-01-23
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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.
G. †Placochlaenia
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Bambach et al. 2007 | |||||
Age range: Early/Lower Kimmeridgian or 154.80000 to 152.21000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Kimmeridgian | Portugal | P. sp. (68244) |