Pterobranchia - Graptoloidea - Abrograptidae
Alternative combination: Retiograptus geinitzianus
Full reference: J. Hall. 1859. Catalogue of the species of fossils described in volumes I., II., and III. of the Palaeontology of New York; with corrections in nomenclature, as far as determined to the present time. Annual Report of the Regents of the University of the State of New York, on the Condition of the State Cabinet of Natural History, and the Historical and Antiquarian Collection Connected therewith, State of New York in Assembly Document 12(186):63-87
Belongs to Retiograptus according to R. A. Cooper 1979
See also Hall 1859
Sister taxa: none
Ecology: passively mobile planktonic suspension feeder
Distribution:
• Ordovician of Canada (2: British Columbia, Yukon collections), New Zealand (5), the Russian Federation (2), United States (7: Alaska, Idaho)
Total: 16 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.