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Echioceras microdiscus
Taxonomy
Ammonites raricostatus microdiscus was named by Quenstedt (1884).
It was recombined as Echioceras microdiscus by Trueman and Williams (1925) and Bremer (1965).
It was recombined as Echioceras microdiscus by Trueman and Williams (1925) and Bremer (1965).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1884 | Ammonites raricostatus microdiscus Quenstedt |
1925 | Echioceras microdiscus Trueman and Williams |
1965 | Echioceras microdiscus Bremer |
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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.
†Echioceras microdiscus Quenstedt 1884
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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, Kiessling 2003 |
Age range: Pliensbachian or 190.80000 to 182.70000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Pliensbachian | Turkey | Echioceras microdiscus (218658) |