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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Martinia pentagonalis
Taxonomy
Martinia pentagonalis was named by Jin and Hu (1978).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Martinia pentagonalis Jin and Hu |
| 1982 | Martinia pentagonalis Wang et al. p. 246 figs. Pl 87, fig 16 |
| 2002 | Martinia pentagonalis Chen and Shi p. 313 figs. 12A-D |
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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.
†Martinia pentagonalis Jin and Hu 1978
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 13.1 | |||||
| valve height | 1 | 14.2 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Chadian to the top of the Griesbachian or 346.70000 to 250.50000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chadian - Holkerian | China (Xinjiang) | Martinia pentagonalis (50253) | |
| Artinskian | China (Xinjiang) | Martinia pentagonalis (62709 105097) | |
| Wordian | China (Anhui) | Martinia pentagonalis (109849 109852) | |
| Griesbachian | China (Zhejiang) | Martinia pentagonalis (105218 105219) |