A virtual museum of crinoids from all over the world
Map © Laporte (1968)
© Miller et al. (1957)
© Laporte (1968)
Niobrara Formation, Chalk bluffs south of Castle Rock
Hess (1999): Uintacrinus Beds of the Upper Cretaceous Niobrara Formation, Kansas, USA (download)
Notes on Uintacrinus socialis by Mike Everhart
Map © Elgin & Frey (2011)
Haqel Quarry
Map
Stratigraphy
Section Chalk cliffs at Ballard Point © Rowe (1902)
Chalk cliffs at Ballard Point © West (2009)
Jäger (1980): Die Seelilie Marsupites testudinarius (download)
Kühndahl (2010): Über Bourgueticrinus in der Lägersdorfer Schreibkreide (download)
Rasmussen (1961): A monograph on the Cretaceous Crinoidea
British Chalk Crinoids by Robert Randell