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Tragolytoceras
Taxonomy
Tragolytoceras was named by Spath (1924) [Sepkoski's age data: J Sine-l]. It is not extant. Its type is Tragolytoceras bonarellii.
It was assigned to Lytoceratidae by Wiedmann (1970); to Ammonoidea by Sepkoski (2002); and to Ectocentritinae by Geczy and Meister (2007).
It was assigned to Lytoceratidae by Wiedmann (1970); to Ammonoidea by Sepkoski (2002); and to Ectocentritinae by Geczy and Meister (2007).
Species
T. bonarellii (type species)
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1924 | Tragolytoceras Spath p. 194 |
| 1970 | Tragolytoceras Wiedmann p. 996 |
| 2002 | Tragolytoceras Sepkoski |
| 2007 | Tragolytoceras Geczy and Meister |
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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.
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell diameter | 1 | 21.6 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Bucklandi or 196.50000 to 189.60000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Bucklandi | Hungary (Veszprém Megye) | T. sp. (78206) | |
| Early/Lower Sinemurian | France (Bourgogne-Franche-Comté) | T. circumdatum (234373) | |
| Late/Upper Sinemurian | Italy | T. bonarellii (135353) |