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Marginifera (Marginifera) drastica
Taxonomy
Marginifera drastica was named by Grant (1976). Its type specimen is USNM 212282, a shell (Articulated shell), and it is not a trace fossil. Its type locality is USNM9270, Phangnga, which is in a Roadian marine limestone in the Rat Buri Formation of Thailand.
It was recombined as Marginifera (Marginifera) drastica by Chen and Shi (2006).
It was recombined as Marginifera (Marginifera) drastica by Chen and Shi (2006).
Synonymy list
Year | Name and author |
---|---|
1976 | Marginifera drastica Grant pp. 110-112 figs. Pl 26, figs 1-23 |
1999 | Marginifera drastica Yanagida and Nakornsri p. 129 figs. Pl 29, figs 2,3,5-9 |
2006 | Marginifera (Marginifera) drastica Chen and Shi p. 142 figs. Pl 6, figs 1-18; text-fig 13 |
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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.
†Marginifera (Marginifera) drastica Grant 1976
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Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 4 | 5.57 | 4.00 | 8.00 | 5.75 | 2.17 | |
valve height | 9 | 14.7 | 8.73 | 24.0 | 13.6 | 5.28 |
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Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
References: Nesnidal et al. 2013, Williams et al. 2000, Aberhan et al. 2004 |
Age range: base of the Artinskian to the top of the Capitanian or 290.10000 to 259.90000 Ma
Collections (11 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Artinskian | China (Xinjiang) | Marginifera drastica (62718 62815 62816 62819 62823 62825 62827) | |
Roadian | Thailand | Marginifera drastica (type locality: 40868) | |
Wordian | Thailand (Ratchaburi) | Marginifera elongata (40954) | |
Capitanian | Thailand | Marginifera drastica (120918 120920) |