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Grammoceras penestriatulum
Taxonomy
Grammoceras penestriatulum was named by Buckman (1902).
Sister species lacking formal opinion data
Synonyms
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Synonymy list
Year | Name and author |
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1902 | Grammoceras penestriatulum Buckman p. 3 |
1926 | Costigrammoceras costigerum Buckman figs. Pl 686, figs 1,2 |
1976 | Grammoceras penestriatulum Gabilly p. 119 figs. Pl 18, figs 3,4; pl 19, figs 3,4; pl 20, figs 6,7; text-figs 83,103b |
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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.
†Grammoceras penestriatulum Buckman 1902
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Invalid names: Costigrammoceras costigerum Buckman 1926 [synonym]
Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 12 | 16.2 | 11.8 | 27.7 | 15.9 | 3.99 | |
shell diameter | 12 | 50.4 | 30.5 | 98.4 | 50.5 | 17.4 | |
shell inflation | 12 | 21.2 | 10.5 | 48.4 | 21.5 | 10.1 |
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Source: o = order, c = class | |||||
References: Kiessling 2003, Kiessling 2004 |
Age range: Late/Upper Toarcian or 180.10000 to 175.60000 Ma
Collections (17 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Late/Upper Toarcian | France | Grammoceras penestriatulum (161668) | |
Late/Upper Toarcian | United Kingdom (Yorkshire) | Grammoceras penestriatulum (220498) | |
Thouarsense | France (Deux-Sèvres) | Grammoceras penestriatulum (148979 148982 148983 148984) | |
Thouarsense | Spain | Grammoceras penestriatulum (146978 146979 146983) | |
Thouarsense | France (Deux-Sevrès) | Grammoceras penestriatulum (140872 140873 147169 147170) | |
Thouarsense | France (Vienne) | Grammoceras penestriatulum (148976) | |
Thouarsense | France (Vendée) | Grammoceras penestriatulum (148981) | |
Thouarsense | France | Grammoceras penestriatulum (148809 167410) |