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Holcophylloceras
Taxonomy
Holcophylloceras was named by Spath (1927) [Sepkoski's age data: J Toar-u K Apti].
It was assigned to Phylloceratidae by Khiami and Murphy (1988); to Phylloceratitida by Sepkoski (2002); to Phylloceratinae by Pallini et al. (2004) and Majidifard (2015); and to Calliphylloceratinae by Westermann (1969), Wright et al. (1996), Murphy and Rodda (2006), Szives (2007), Grigore (2011), Grigore (2013), Sato and Yamada (2014) and Matsukawa (2021).
It was assigned to Phylloceratidae by Khiami and Murphy (1988); to Phylloceratitida by Sepkoski (2002); to Phylloceratinae by Pallini et al. (2004) and Majidifard (2015); and to Calliphylloceratinae by Westermann (1969), Wright et al. (1996), Murphy and Rodda (2006), Szives (2007), Grigore (2011), Grigore (2013), Sato and Yamada (2014) and Matsukawa (2021).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1927 | Holcophylloceras Spath |
| 1969 | Holcophylloceras Westermann p. 40 |
| 1988 | Holcophylloceras Khiami and Murphy p. 592 |
| 1996 | Holcophylloceras Wright et al. p. 2 |
| 2002 | Holcophylloceras Sepkoski |
| 2004 | Holcophylloceras Pallini et al. p. 4 |
| 2006 | Holcophylloceras Murphy and Rodda p. 47 |
| 2007 | Holcophylloceras Szives p. 48 |
| 2011 | Holcophylloceras Grigore p. 195 |
| 2013 | Holcophylloceras Grigore p. 86 |
| 2014 | Holcophylloceras Sato and Yamada p. 30 |
| 2015 | Holcophylloceras Majidifard p. 27 |
| 2021 | Holcophylloceras Matsukawa p. 5 |
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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.
G. †Holcophylloceras Spath 1927
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†Holcophylloceras aldersoni Anderson 1938
†Holcophylloceras avrami Vasicek et al. 2014
†Holcophylloceras caucasicum Sayn 1920
†Holcophylloceras costisparsum Imlay 1964
†Holcophylloceras falcatum Murphy and Rodda 2006
†Holcophylloceras falciferum Crickmay 1933
†Holcophylloceras guettardi Raspail 1831
†Holcophylloceras indicum Lemoine 1910
†Holcophylloceras kawhiae Marshall 1909
†Holcophylloceras mediterraneum Neumayr 1871
†Holcophylloceras polyolcum Benecke 1865
†Holcophylloceras ultramontanum Zittel 1869
†Holcophylloceras zignodianum d'Orbigny 1848
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. N. Khiami and M. A. Murphy 1988 | Characterized by a relatively involute, moderately inflated shell with biconcave constrictions and diphyllic or triphyllic saddles. | |
| M. A. Murphy and P. U. Rodda 2006 | A calliphylloceratine genus characterized by diphyllic saddle terminations and persistent external or internal constrictions with or without intervening peripheral ribs (Table 13). |