Rhynchonellata - Orthida - Orthidae
Alternative combination: Orthis (Dalmanella) testudinaria
Full reference: J. W. Dalman. 1828. Uppställning och Beskrifning af de i Sverige funne Terebratuliter. Kongliga Svenska Vetenskapsakademien Handlingar for År 1827:85-155
Belongs to Orthis according to C. D. Walcott 1884
See also Alikhova 1953, Bergström 1968, Cocks 1982, Cocks 2014, Dalman 1828, Havlícek 1977, Hints and Harper 2015, Jin and Chatterton 1997, Jin and Zhan 2008, Reed 1917, Rubel 2011, Temple 1965 and Walker 1982
Sister taxa: Orthis (Finkelnburgia), Orthis (Orusia), Orthis acuminata, Orthis australis, Orthis berthoisi, Orthis biforata, Orthis biloba, Orthis bilobata, Orthis callactis, Orthis christianae, Orthis cypha, Orthis davidsoni, Orthis expansa, Orthis intercostata, Orthis kreklingensis, Orthis laticostata, Orthis perveta, Orthis piger, Orthis reversa, Orthis ribeiroi, Orthis spinigera, Orthis subalata, Orthis tulliensis
Ecology: stationary epifaunal suspension feeder
Distribution: found only at Brannon Mbr., Lexington Ls., Franklin County, Kentucky (Ordovician of Kentucky)
Specimen images are retrieved through the ePANDDA API.
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