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Diestoceras breviconum
Taxonomy
Orthoceras breviconum was named by Portlock (1843). It is not extant. Its type specimen is GSM 103467, a shell. Its type locality is Killey Bridge Fm. locality 1, NE of Pomeroy, which is in a Richmondian offshore mudstone/siltstone in the Killey Bridge Formation of the United Kingdom.
It was recombined as Diestoceras breviconum by Evans (1993).
It was recombined as Diestoceras breviconum by Evans (1993).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1843 | Orthoceras breviconum Portlock p. 372 figs. 8a, b Pl. 28 |
1993 | Diestoceras breviconum Evans p. 181 figs. 14, 15 |
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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.
†Diestoceras breviconum Portlock 1843
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: o = order, c = class | |||||
References: Aberhan et al. 2004, Kiessling 2004 |
Age range: Richmondian or 449.60000 to 445.50000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Richmondian | United Kingdom (Northern Ireland) | Orthoceras breviconum, Diestoceras breviconum (type locality: 89260) |