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Gemmula crenulata
Taxonomy
Pleurotoma crenulata was named by Lamarck (1804) [DISTRIBUTION: Eocene; western Europe.]. It is a 3D body fossil. Its type locality is Grignon (Defrance collection), which is in a Lutetian open shallow subtidal sandstone/sandstone in France.
It was recombined as Epalxis crenulata by Bone et al (1991); it was recombined as Gemmula crenulata by Pacaud and Le Renard (1995).
It was recombined as Epalxis crenulata by Bone et al (1991); it was recombined as Gemmula crenulata by Pacaud and Le Renard (1995).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1804 | Pleurotoma crenulata Lamarck p. 168 |
1991 | Epalxis crenulata Bone et al. |
1995 | Gemmula crenulata Pacaud and Le Renard |
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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.
†Gemmula crenulata Lamarck 1804
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: f = family, c = class | |||||
References: Kiessling 2004, Hendy et al. 2009 |
Age range: Lutetian or 47.80000 to 41.30000 Ma
Collections (2 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Early/Lower Eocene - Middle Eocene | United Kingdom (England) | Epalxis crenulata (3257) | |
Lutetian | France | Pleurotoma crenulata (184110) |