Archaeoscyphia annulata Rigby 1973 (demosponge)

Demospongea - Lithistida - Anthaspidellidae

Alternative combination: Calycocoelia annulata

Full reference: J. K. Rigby. 1973. A new anthaspidellid sponge from the Silurian of Lake Timiskaming, Quebec. Journal of Paleontology 47(4):801-804

Belongs to Archaeoscyphia according to J. K. Rigby and B. D. E. Chatterton 1999

See also Rigby 1973

Sister taxa: Archaeoscyphia alternata, Archaeoscyphia attenuata, Archaeoscyphia bassleri, Archaeoscyphia boltoni, Archaeoscyphia eganensis, Archaeoscyphia gislei, Archaeoscyphia mazourkaensis, Archaeoscyphia minganensis, Archaeoscyphia nana, Archaeoscyphia pannosa, Archaeoscyphia pulchra, Archaeoscyphia rectilinearis, Archaeoscyphia rossi, Archaeoscyphia scalaria, Archaeoscyphia tenuis, Archaeoscyphia undulata

Type specimen: Its type locality is Mann Island, Lake Timiskaming, which is in a Llandovery marine horizon in the Thornloe Formation of Canada

Ecology: stationary epifaunal suspension feeder

Distribution:

• Silurian of Canada (5: Northwest Territories, Quebec collections)

• Arenig of United States (7: Oklahoma, Texas)

• Jefferson of United States (3: Oklahoma)

• Jeffersonian of United States (2: Texas)

Total: 17 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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