Trilobita - Proetida - Bathyuridae
Alternative combination: Jeffersonia mediacrista
Full reference: J. S. Cullison. 1944. The stratigraphy of some Lower Ordovician formations of the Ozark uplift. University of Missouri School of Mines and Metallurgy Technical Series Bulletin 15(2):1-112
Belongs to Benthamaspis according to J. D. Loch 2007
See also Cullison 1944
Sister taxa: Benthamaspis canadensis, Benthamaspis conica, Benthamaspis diminutiva, Benthamaspis gibberula, Benthamaspis onomeris, Benthamaspis problematica, Benthamaspis rhochmotis, Benthamaspis sera, Benthamaspis striata
Ecology: fast-moving low-level epifaunal deposit feeder
Distribution:
• Ordovician of Canada (1: Newfoundland collection), United States (3: Missouri, Oklahoma)
Total: 4 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.