@book {Smith1816,
	title = {Strata Identified by Organized Fossils},
	year = {1816},
	pages = {24},
	publisher = {W. Arding},
	organization = {W. Arding},
	address = {London},
	keywords = {BL, TIP},
	url = {http://books.google.com/books?id=ycMQAAAAIAAJ},
	author = {Smith, William}
}
@book {Lamarck1816,
	title = {Histoire naturelle des animaux sans vert{\`e}bres. Tome second},
	volume = {2},
	year = {1816},
	pages = {568},
	publisher = {Verdi{\`e}re},
	organization = {Verdi{\`e}re},
	address = {Paris},
	keywords = {BL, RCBS, TIP},
	url = {http://archive.org/details/histoirenaturell22lama},
	author = {Lamarck, Jean-Baptiste Pierre}
}
