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Arcthoplites birkenmajeri
Taxonomy
Arcthoplites birkenmajeri was named by Nagy (1970). Its type specimen is PMO A32860, a shell, and it is a 3D body fossil. Its type locality is Locality 17, Havkollen, Tromsöbreen, which is in an Albian marine shale in the Carolinefjellet Formation of Svalbard and Jan Mayen.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1970 | Arcthoplites birkenmajeri Nagy p. 51 figs. Pl 8, figs 2-6; pl 9, fig 1; text-fig 12a-e |
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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.
†Arcthoplites birkenmajeri Nagy 1970
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 16.8 | 12.0 | 22.0 | 17.0 | 3.96 | |
| shell diameter | 5 | 44.7 | 30.0 | 59.0 | 48.0 | 12.0 | |
| shell inflation | 5 | 15.9 | 10.0 | 22.0 | 18.0 | 4.98 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Early/Lower Albian or 113.20000 to 110.10000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Albian | Svalbard and Jan Mayen | Arcthoplites birkenmajeri (174862 174869 174870 type locality: 174872 174892) |