Sphenothallus Temporal range:
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Sphenothallus holdfast from the Kope Formation (Upper Ordovician), Gunpowder Creek, Kentucky. | |
Scientific classification
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Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Cnidaria |
Order: | † Conulatae |
Clade: | † Conulariida |
Genus: | †
Sphenothallus Hall, 1847 |
Sphenothallus is a problematic extinct genus lately attributed to the conulariids. It was widespread in shallow marine environments during the Paleozoic. [2] [4]
Sphenothallus is represented in the Cambrian period in the Kaili biota and the Mount Stephen trilobite beds, where it co-occurs with the similar organisms Cambrorhythium and Byronia. [1] It is known in younger strata in Canada and the US, surviving at least until the Mississippian. [3]
Sphenothallus lived in groups as an opportunist in environments from hardgrounds to soft mud, even if depleted in oxygen. [3] It probably dispersed via larvae. [3]
Sphenothallus Temporal range:
| |
---|---|
![]() | |
Sphenothallus holdfast from the Kope Formation (Upper Ordovician), Gunpowder Creek, Kentucky. | |
Scientific classification
![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Cnidaria |
Order: | † Conulatae |
Clade: | † Conulariida |
Genus: | †
Sphenothallus Hall, 1847 |
Sphenothallus is a problematic extinct genus lately attributed to the conulariids. It was widespread in shallow marine environments during the Paleozoic. [2] [4]
Sphenothallus is represented in the Cambrian period in the Kaili biota and the Mount Stephen trilobite beds, where it co-occurs with the similar organisms Cambrorhythium and Byronia. [1] It is known in younger strata in Canada and the US, surviving at least until the Mississippian. [3]
Sphenothallus lived in groups as an opportunist in environments from hardgrounds to soft mud, even if depleted in oxygen. [3] It probably dispersed via larvae. [3]