†Isorthis pygmaea Dunbar 1919 (lamp shell)
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Rhynchonellata - Orthida - Dalmanellidae
Alternative combination: Dalmanella pygmaea
Belongs to Isorthis according to T. W. Amsden 1958
See also Dunbar 1919 and Schuchert and Cooper 1932
Sister taxa: Isorthis (Arcualla), Isorthis (Isorthis), Isorthis (Ovalella), Isorthis (Protocortezorthis), Isorthis alpha, Isorthis bailyi, Isorthis crassa, Isorthis estona, Isorthis festiva, Isorthis loveni, Isorthis mediocra, Isorthis parvulus, Isorthis slitensis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Devonian of United States (4: Oklahoma, Tennessee collections)
• Silurian to Devonian of United States (1: Oklahoma)
Total: 5 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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