TY  - RPRT
TI  - Apatitic connecting rings in moulds of Baculites sp. from the middle part of the Smoky Hill Member, Niobrara Chalk (Santonian), of western Kansas
AU  - W.A. Hasenmueller
AU  - D.E. Hattin
PY  - 1985
DO  - 10.1016/0195-6671(85)90039-4
UR  - https://pubs.usgs.gov/publication/70013044
ID  - 70013044
ER  -