Rhynchonellata - Orthida - Hesperorthidae
Full reference: H. R. Pestana. 1960. Fossils from the Johnson Spring Formation, Middle Ordovician, Independence Quadrangle, California. Journal of Paleontology 34(5):862-873
Belongs to Ptychopleurella according to H. R. Pestana 1960
Sister taxa: Ptychopleurella aleksandrovae, Ptychopleurella angulaticostata, Ptychopleurella bouchardi, Ptychopleurella decretoria, Ptychopleurella emarginata, Ptychopleurella erecta, Ptychopleurella kleinhamplei, Ptychopleurella lamellosa, Ptychopleurella lapworthi, Ptychopleurella lenzi, Ptychopleurella mediocostata, Ptychopleurella multicostata, Ptychopleurella oklahomensis, Ptychopleurella pirguensis, Ptychopleurella porcia, Ptychopleurella rectangulata, Ptychopleurella separata, Ptychopleurella sulcata, Ptychopleurella transversa, Ptychopleurella twenhofeli, Ptychopleurella uniplicata
Type specimen: UCMP 37712. Its type locality is UCMP loc. B963, First South Section, Mazourka Canyon, which is in a Caradoc marine limestone in the Johnson Spring Formation of California.
Ecology: stationary epifaunal suspension feeder
Distribution:
• Ordovician of United States (3: California collections)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.