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Gasterocoma
Taxonomy
Gasterocoma was named by Goldfuss (1839) [Sepkoski's age data: D Sieg D Give]. It is not extant. It is the type genus of Gasterocomacea, Gasterocomidae.
It was assigned to Gasterocomidae by Johnson and Lane (1969), Ubaghs et al. (1978); and to Cladida by Sepkoski (2002).
It was assigned to Gasterocomidae by Johnson and Lane (1969), Ubaghs et al. (1978); and to Cladida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1839 | Gasterocoma Goldfuss |
| 1969 | Gasterocoma Johnson and Lane |
| 1978 | Gasterocoma Ubaghs et al. p. T587 |
| 2002 | Gasterocoma Sepkoski |
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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: subc = subclass, c = class, p = phylum | |||||
| References: Kiessling 2004, Aberhan 1992, Hendy et al. 2009 | |||||
Age range: base of the Pragian to the top of the Late/Upper Emsian or 413.02000 to 393.47000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Devonian | USA (Nevada) | G. bicaula (123279) | |
| Early/Lower Devonian | Canada (Ontario) | G. sp. (40058) | |
| Lochkovian - Zlichovian | Canada (Yukon) | G. sp. (603) | |
| Pragian | France (Bretagne) | G. armoricana (81603) | |
| Zlichovian | Canada (Yukon) | G. bicaula (81646 81647 81648) | |
| Emsian - Eifelian | Canada (Ontario) | G. bicaula (40039) | |
| Late/Upper Emsian | USA (Alaska) | G. bicauli (3948) |