TY  - RPRT
TI  - The brachiopod genera Hebertella, Dalmanella, and Heterorthina from the Ordovician of Kentucky
AU  - L.G. Walker
PY  - 1982
DO  - 10.3133/pp1066m
UR  - https://pubs.usgs.gov/publication/pp1066M
ID  - pp1066M
ER  -