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Megadesmus borealis
Taxonomy
Megadesmus borealis was named by Muromtseva (1984). Its type specimen is PIN 457/11570, a shell (Articulated steinkern), and it is a cast. Its type locality is Dyby River Basin, Middle Imtachan, Southern Verkhoyan, which is in a Wuchiapingian marine siliciclastic in the Imtachan Formation of the Russian Federation.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1984 | Megadesmus borealis Muromtseva p. 92 figs. Pl 45, fig 6; pl 49, fig 6 |
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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.
†Megadesmus borealis Muromtseva 1984
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range: base of the Kungurian to the top of the Wuchiapingian or 283.30000 to 254.14000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kungurian | Russian Federation | Megadesmus borealis (114424) | |
| Wuchiapingian | Russian Federation | Megadesmus borealis (type locality: 97378) |