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Amalda arenaria
Taxonomy
Ancilla (Sparella) arenaria was named by Cossmann (1889). It is a 3D body fossil. Its type locality is Aizy-Jouy (Cossmann collection), which is in a Ypresian marine sandstone in the Sables d'Aizy Formation of France.
It was recombined as Amalda arenaria by Jeffery and Tracey (1997) and Pacaud et al. (2013).
It was recombined as Amalda arenaria by Jeffery and Tracey (1997) and Pacaud et al. (2013).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1889 | Ancilla (Sparella) arenaria Cossmann |
1997 | Amalda arenaria Jeffery and Tracey p. 96 figs. Pl 10, fig 25 |
2013 | Amalda arenaria Pacaud et al. p. 31 figs. Pl 1, figs 1-6 |
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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.
†Amalda arenaria Cossmann 1889
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: o = order, c = class | |||||
Reference: Kiessling 2004 |
Age range: Ypresian or 56.00000 to 47.80000 Ma
Collections (12 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Ypresian | France | Amalda arenaria (171521 183724 183725 183726 183783 183791 183793 183794) Ancilla arenaria (183723) | |
Ypresian | France (Aisne) | Amalda arenaria (183781 183789) Ancilla arenaria (type locality: 183788) |