@article {7432,
	title = {Ammonite shells as habitats in the Pasidonia Shales of Holzmaden - floats or benthic islands?},
	journal = {Neues Jahrbuch f{\"u}r Geologie und Pal{\"a}ontologie. Monatshefte},
	number = {2},
	year = {1982},
	note = {Heft 2},
	pages = {98-114},
	keywords = {ammonites, ecology, fossils, Gervilla, paleoecology, paleontology, Pteria, pterioidea},
	author = {Seilacher, Adolf}
}
