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Gaudryceras (Mesogaudryceras)
Taxonomy
Mesogaudryceras was named by Spath (1927) [Sepkoski's age data: K Ceno-m Sepkoski's reference number: 730]. Its type is Ammonites leptonema.
It was synonymized subjectively with Gaudryceras by Hoffmann (2010); it was reranked as Gaudryceras (Mesogaudryceras) by Wright and Kennedy (1984), Kennedy (1994), Wright et al. (1996), Kennedy et al. (2024).
It was assigned to Gaudryceratidae by Arkadiev et al. (2000); to Ammonoidea by Sepkoski (2002); and to Gaudryceras by Wright and Kennedy (1984), Kennedy (1994), Wright et al. (1996), Kennedy et al. (2024).
It was synonymized subjectively with Gaudryceras by Hoffmann (2010); it was reranked as Gaudryceras (Mesogaudryceras) by Wright and Kennedy (1984), Kennedy (1994), Wright et al. (1996), Kennedy et al. (2024).
It was assigned to Gaudryceratidae by Arkadiev et al. (2000); to Ammonoidea by Sepkoski (2002); and to Gaudryceras by Wright and Kennedy (1984), Kennedy (1994), Wright et al. (1996), Kennedy et al. (2024).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1927 | Mesogaudryceras Spath |
| 1984 | Gaudryceras (Mesogaudryceras) Wright and Kennedy p. 51 |
| 1994 | Gaudryceras (Mesogaudryceras) Kennedy p. 218 |
| 1996 | Gaudryceras (Mesogaudryceras) Wright et al. p. 3 |
| 2000 | Mesogaudryceras Arkadiev et al. p. 99 |
| 2002 | Mesogaudryceras Sepkoski |
| 2024 | Gaudryceras (Mesogaudryceras) Kennedy et al. p. 8 |
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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.
Subg. †Gaudryceras (Mesogaudryceras) Spath 1927
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†Gaudryceras (Mesogaudryceras) leptonema Sharpe 1855
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Early/Lower Cenomanian or 100.50000 to 93.90000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cenomanian | Ukraine | Mesogaudryceras leptonema (183309) | |
| Cenomanian | Germany | Gaudryceras leptonema (66734 66779) | |
| Early/Lower Cenomanian | Greenland | Gaudryceras leptonema (237446 237447) | |
| Early/Lower Cenomanian | United Kingdom (England) | Mesogaudryceras leptonema (230775) | |
| Middle Cenomanian | France | Gaudryceras leptonema (82843) | |
| Middle Cenomanian | Ukraine | Mesogaudryceras leptonema (183310) |