Gastropoda - Sorbeoconcha - Rissoidae
Full reference: D. B. K. Palmer. 1923. A fauna from the Middle Eocene shales near Vacaville, California. University of California Publications, Bulletin of the Department of Geological Sciences 14(8):289-318
Belongs to Turbella according to D. B. K. Palmer 1923
Sister taxa: Rissoa (Turbella), Rissoa alienocurta, Rissoa canariensis, Rissoa cooperi, Rissoa costulata, Rissoa dolium, Rissoa epulata, Rissoa federicoi, Rissoa kelseyi, Rissoa multicostata, Rissoa pakistanica, Rissoa parva, Rissoa poustagnacensis, Rissoa reticulata, Rissoa similis, Rissoa ventricosa, Turboella crebricostata, Turbella cowlitzensis, Rissoa (Turboella) obsoleta, Turboella costata, Rissoa (Turboella) curticostata, Turboella turbinata
Type specimen: UCMP 30605, a shell. Its type locality is UCMP 3573 - NW of Vacaville, which is in a Ypresian offshore shale in California.
Ecology: epifaunal grazer
Distribution:
• Eocene of United States (2: California collections)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.