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Harpoceras (Harpoceras) lassum
Taxonomy
Maconiceras lassum was named by Buckman (1927).
It was synonymized subjectively with Harpoceras soloniacense by Howarth (1992); it was recombined as Harpoceras (Harpoceras) lassum by Bécaud (2006).
It was synonymized subjectively with Harpoceras soloniacense by Howarth (1992); it was recombined as Harpoceras (Harpoceras) lassum by Bécaud (2006).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1927 | Maconiceras lassum Buckman p. 722 |
| 2006 | Harpoceras (Harpoceras) lassum Bécaud p. 63 figs. Pl 23, figs 1,2; pl 24, figs 1,3 |
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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.
†Harpoceras (Harpoceras) lassum Buckman 1927
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 45.9 | 26.0 | 85.0 | 46.0 | 26.0 | |
| shell diameter | 4 | 99.9 | 56.5 | 193.0 | 97.0 | 59.6 | |
| shell inflation | 4 | 24.6 | 14.5 | 50.0 | 22.5 | 15.6 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||