Stramentum elegans from the Late Cretaceous Carlile Shale Fm. of Osborne County, Kansas (FHSMIP 788). Stramentum elegans from the Late Cretaceous Carlile Shale Fm. of Osborne County, Kansas (FHSMIP 789). Stramentum elegans from the Turonian Carlile Shale Fm. of Osborne County, Kansas (FHSMIP 111527).