Janospira Temporal range:
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Scientific classification
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Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | incertae sedis |
Genus: | † Janospira |
Janospira is a microfossil known from Ordovician deposits, whose affinity is uncertain. It resembles a spiral shell mounted on a cylinder, probably calcareous, about 1 mm in length. There are compelling reasons to discount a foramaniferan or molluscan affinity, [1] [2] though, some researchers presume it to be an archaeogastropod. [3]
Species of Janospira are known from northern Spitsbergen, Norway, [1] and from Australia [4]
Janospira Temporal range:
| |
---|---|
Scientific classification
![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | incertae sedis |
Genus: | † Janospira |
Janospira is a microfossil known from Ordovician deposits, whose affinity is uncertain. It resembles a spiral shell mounted on a cylinder, probably calcareous, about 1 mm in length. There are compelling reasons to discount a foramaniferan or molluscan affinity, [1] [2] though, some researchers presume it to be an archaeogastropod. [3]
Species of Janospira are known from northern Spitsbergen, Norway, [1] and from Australia [4]