Harpoceras (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Harpoceras" in English language version.

refsWebsite

Global rank English rank

7,382^nd place

7,261^st place

1,045^th place

746^th place

1sciencedirect.com

149^th place

178^th place

paleodb.org

Paleobiology Database - Harpoceras. 2017-10-16.

sciencedirect.com

Ogg, J.G.; Hinnov, L.A.; Huang, C. (2012). "Jurassic". In Gradstein, F.M.; Ogg, J.G.; Schmitz, M.D.; Ogg, G.M. (eds.). The Geologic Timescale 2012. Elsevier. p. 766. ISBN 978-0-44-459390-0.

wisc.edu

strata.geology.wisc.edu

Sepkoski, Jack Sepkoski's Online Genus Database – Cephalopoda