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Gibbirhynchia thorncombiensis
Taxonomy
Tetrarhynchia thorncombiensis was named by Buckman (1922). Its type specimen is BMNH B.65718 and is a 3D body fossil. Its type locality is Thorncombe Beacon, near Eype (Buckman thorncombiensis bed coll.), which is in a Margaritatus marine sandstone in the Thorncombe Formation of the United Kingdom.
It was recombined as Gibbirhynchia thorncombiensis by Ager (1954) and Ager (1962).
It was recombined as Gibbirhynchia thorncombiensis by Ager (1954) and Ager (1962).
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.
†Gibbirhynchia thorncombiensis Buckman 1922
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Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 2 | 12.3 | 12.0 | 12.7 | 12.3 | 0.495 |
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Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
References: Aberhan et al. 2004, Nesnidal et al. 2013 |
Age range: Margaritatus or 189.60000 to 183.00000 Ma
Collections (4 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Margaritatus | United Kingdom (England) | Gibbirhynchia thorncombiensis (138202 138203) Tetrarhynchia thorncombiensis (138201) | |
Margaritatus | United Kingdom (Gloucestershire) | Gibbirhynchia thorncombiensis (138204) |