Mobergella
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| Mobergella Temporal range: | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | incertae sedis |
| Family: | †Mobergellidae |
| Genus: | †Mobergella Moberg, 1892 |
| Species | |
| |
Mobergella is a millimetric Lower Cambrian shelly fossil of unknown affinity, usually preserved in phosphate and particularly well known from Swedish strata, where it is diagnostic of lowermost Cambrian rocks.[1] Originally interpreted as a monoplacophoran,[1] the circular, cap-shaped shell resembles a hyolith operculum, with concentric rings on its upper surface, and seven pairs of internal muscle scars. It is never found in association with a conch, and its affinity therefore remains undetermined.[2] Nevertheless, its heavy musculature does seem to indicate that it functioned as an operculum.[3]
Some specimens bear evidence of healed injuries.[1]
It's also been compared to the Kirengellids, which are probably brachiopods.[4]
