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Frenguelliella inexspectata
Taxonomy
Trigonia inexspectata was named by Jaworski (1916).
It was recombined as Trigonia (Frenguelliella) inexspectata by Cox (1952); it was recombined as Frenguelliella inexspectata by Pérez et al. (2008).
It was recombined as Trigonia (Frenguelliella) inexspectata by Cox (1952); it was recombined as Frenguelliella inexspectata by Pérez et al. (2008).
Synonymy list
Year | Name and author |
---|---|
1916 | Trigonia inexspectata Jaworski p. 377 figs. Pl 5, fig 2 |
1952 | Trigonia (Frenguelliella) inexspectata Cox |
2008 | Frenguelliella inexspectata Pérez et al. p. 74 figs. Pl 6, figs 1,3,4,7 |
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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.
†Frenguelliella inexspectata Jaworski 1916
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Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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valve height | 2 | 32.4 | 30.0 | 35.0 | 32.5 | 3.54 |
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Source: o = order, c = class | |||||
Reference: Aberhan et al. 2004 |
Age range: Margaritatus or 189.60000 to 183.00000 Ma
Collections (7 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Early/Lower Jurassic | Mexico (Sonora) | Trigonia inexspectata (39132) | |
Early/Lower Pliensbachian | Chile | Trigonia inexspectata (35452) | |
Early/Lower Pliensbachian - Late/Upper Pliensbachian | Argentina (Neuquen) | Frenguelliella inexspectata (10701) | |
Late/Upper Pliensbachian | Chile | Trigonia inexspectata (33882 33886) | |
Margaritatus | Chile | Frenguelliella inexspectata (95068) | |
Late/Upper Pliensbachian - Early/Lower Toarcian | Argentina (Chubut) | Frenguelliella inexspectata (204711) |