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†Trochonema retrorsum Ulrich and Scofield 1897 (snail)

Gastropoda - Murchisoniina - Trochonematidae

Full reference: E. O. Ulrich and W. H. Scofield. 1897. The Lower Silurian Gastropoda of Minnesota. The Paleontology of Minnesota 39(2):813-1081

Belongs to Trochonema according to P. J. Wagner 2023

See also Rohr and Blodgett 1985, Ulrich and Scofield 1897, Wagner 1995 and Wagner 1999

Sister taxa: Trochonema altum, Trochonema attavum, Trochonema beachi, Trochonema bellulum, Trochonema beloitense, Trochonema biangulata, Trochonema cambodgensis, Trochonema canadensis, Trochonema coxi, Trochonema dispar, Trochonema eccentricum, Trochonema fragile, Trochonema galtensis, Trochonema liljevalli, Trochonema madisonense, Trochonema minnesotensis, Trochonema minus, Trochonema panderi, Trochonema peraltum, Trochonema puchangshaensis, Trochonema puchangshanensis, Trochonema rugosa, Trochonema schmidti, Trochonema shallochense, Trochonema subcrassum, Trochonema tricincta, Trochonema trochonemoides, Trochonema umbilicata, Trochonema vagrans, Trochonema valenticum, Trochonema vittatum, Trochonema wartheni, Trochonema wilsonae

Ecology: epifaunal detritivore

Distribution:

• Ordovician of United States (11: Alaska, Illinois, Iowa, Minnesota collections)

Total: 11 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


Click image to enlarge. Click to access iDigBio record.