@article {Vaughan1923,
	title = {Fauna of the Sooke formation, Vancouver Island},
	journal = {Bulletin of the Department of Geological Sciences, University of California},
	volume = {14},
	number = {5},
	year = {1923},
	pages = {123{\textendash}234},
	keywords = {RCBS, TIP},
	author = {Vaughan, Thomas Wayland}
}
@article {Stephenson1923,
	title = {The Cretaceous formations of North Carolina. Part I: Invertebrate fossils of the Upper Cretaceous formations},
	journal = {North Carolina Geological and Economic Survey},
	volume = {5},
	year = {1923},
	pages = {1{\textendash}604, pl. 1{\textendash}102},
	keywords = {RCBS, TIP},
	url = {http://archive.org/details/cretaceousformat1923step},
	author = {Stephenson, Lloyd William}
}
@article {Cottreau1923,
	title = {Types du prodrome de pal{\'e}ontologie stratigraphique universelle},
	journal = {Annales de Pal{\'e}ontologie (Invert{\'e}br{\'e}s)},
	volume = {12},
	year = {1923},
	pages = {177{\textendash}180},
	keywords = {BL, TIP},
	author = {Cottreau, J}
}
