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Llanoceras
Taxonomy
Llanoceras was named by Flower (1964) [Sepkoski's age data: O Trem Sepkoski's reference number: 298]. It is not extant. Its type is Llanoceras gracile.
It was assigned to Ellesmeroceratidae by Flower (1964) and Crick (1981); and to Ellesmerocerida by Sepkoski (2002).
It was assigned to Ellesmeroceratidae by Flower (1964) and Crick (1981); and to Ellesmerocerida by Sepkoski (2002).
Species
L. gracile (type species)
Synonymy list
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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
No measurements are available
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| Source: o = order, c = class | |||||
| References: Aberhan et al. 2004, Kiessling 2004 | |||||
Age range: Gasconadian or 485.40000 to 477.70000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Gasconadian | USA (Texas) | L. gracile (88805) |