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Girtyoceras
Taxonomy
Girtyoceras was named by Wedekind (1918) [Sepkoski's age data: C Vise-u C Serp-l Sepkoski's reference number: 302,304]. It is not extant. Its type is Adelphoceras meslerorum. It is the type genus of Girtyoceratinae.
It was assigned to Goniatitida by Sepkoski (2002); to Girtyoceratinae by Furnish et al. (2009); and to Girtyoceratidae by Korn (2006) and Korn and Titus (2015).
It was assigned to Goniatitida by Sepkoski (2002); to Girtyoceratinae by Furnish et al. (2009); and to Girtyoceratidae by Korn (2006) and Korn and Titus (2015).
Species
G. acutum, G. brueningianum, G. cowdalense, G. deani, G. discus, G. endicottense, G. glabrum, G. gordoni, G. hamiltonense, G. intracostatum (syn. Sagittoceras costulatum), G. kazakhorum, G. latum, G. meslerianum (syn. G. postmeslerianum, Dryochoceras brainerdi), G. meslerorum, G. modestum, G. multicameratum, G. premeslerianum, G. primum, G. shorrocksi, G. simplex, G. waitei, G. welleri, Sagittoceras hathawayanum
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Adelphoceras Girty |
| 1918 | Sagittoceras Hind |
| 1918 | Girtyoceras Wedekind |
| 1924 | Dryochoceras Morgan |
| 1937 | Sagittoceras Plummer and Scott p. 324 |
| 1952 | Cowdaleoceras Bisat |
| 1999 | Cowdaleoceras Korn et al. p. 348 |
| 2002 | Girtyoceras Sepkoski |
| 2006 | Cowdaleoceras Korn |
| 2006 | Girtyoceras Korn |
| 2009 | Girtyoceras Furnish et al. p. 44 |
| 2015 | Girtyoceras Korn and Titus p. 87 |
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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. †Girtyoceras Wedekind 1918
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†Girtyoceras acutum Hind 1918
†Girtyoceras brueningianum Schmidt 1925
†Girtyoceras cowdalense Moore 1946
†Girtyoceras deani Moore 1946
†Girtyoceras discus Roemer 1852
†Girtyoceras endicottense Gordon 1957
†Girtyoceras glabrum Ruzhentsev and Bogoslovskaya 1971
†Girtyoceras gordoni Korn and Titus 2011
†Girtyoceras hamiltonense Korn and Titus 2011
†Girtyoceras intracostatum Knopp 1931
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Invalid names: Sagittoceras costulatum Kobold 1933 [synonym]
†Girtyoceras kazakhorum Ruzhentsev 1966
†Girtyoceras latum Ruzhentsev and Bogoslovskaya 1971
†Girtyoceras meslerianum Girty 1909
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Invalid names: Dryochoceras brainerdi Morgan 1924 [synonym], Girtyoceras postmeslerianum Bruning 1923 [synonym]
†Girtyoceras meslerorum Girty 1909
†Girtyoceras modestum Ruzhentsev and Bogoslovskaya 1971
†Girtyoceras multicameratum Moore 1946
†Girtyoceras premeslerianum Moore 1946
†Girtyoceras primum Korn and Titus 2011
†Girtyoceras shorrocksi Moore 1946
†Girtyoceras simplex Moore 1946
†Girtyoceras waitei Moore 1946
†Girtyoceras welleri Gordon 1964
Invalid names: Adelphoceras Girty 1909 [replaced], Cowdaleoceras Bisat 1952 [synonym], Dryochoceras Morgan 1924 [synonym], Sagittoceras Hind 1918 [synonym]
Diagnosis
No diagnoses are available