Orthis callactis Dalman 1827 (lamp shell)

Rhynchonellata - Orthida - Orthidae

Belongs to Orthis according to Dalman 1828

Sister taxa: Orthis (Finkelnburgia), Orthis acuminata, Orthis australis, Orthis berthoisi, Orthis biforata, Orthis bilobata, Orthis christianae, Orthis christianiae, Orthis expansa, Orthis intercostata, Orthis laurentina, Orthis piger, Orthis reversa, Orthis spinigera

Ecology: stationary epifaunal suspension feeder


• Silurian of Brazil (1 collection)

• Ordovician of Estonia (9), the Russian Federation (26), Sweden (4)

• Arenig of the United Kingdom (3)

Total: 43 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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