https://web.archive.org/web/20131212040529/http://www.deepfin.org/Classification_v2.htm

Keine Beschreibung vorhanden.

Classification of All Fishes

https://web.archive.org/web/20150924213112/http://www.deepfin.org/Classification_v2.htm

Keine Beschreibung vorhanden.

Classification of All Fishes v3

https://web.archive.org/web/20150814062251/http://www.deepfin.org/Classification_v3.htm

Keine Beschreibung vorhanden.

Classification of All Fishes v3

https://web.archive.org/web/20151004213357/http://www.deepfin.org/Classification_v3.htm

Keine Beschreibung vorhanden.

Google Scholar

http://scholar.google.de/scholar?q=%22British+Museum+of+Natural+History%22&hl=de&as_sdt=0&as_ylo=2000&as_yhi=

Keine Beschreibung vorhanden.

Fossil Coleoidea

https://web.archive.org/web/20060809191546/http://userpage.fu-berlin.de/~palaeont/fossilcoleoidea/introduction.html

Keine Beschreibung vorhanden.

Mammal Species of the World - Browse: Ursidae

http://www.departments.bucknell.edu/biology/resources/msw3/browse.asp?id=14000939

Mammal Species of the World: Information on Ursidae

Mammal Species of the World - Browse: Gerbillurus

http://www.departments.bucknell.edu/biology/resources/msw3/browse.asp?id=13001087

Mammal Species of the World: Information on Gerbillurus

Mammal Species of the World - Browse: Caryomys

http://www.departments.bucknell.edu/biology/resources/msw3/browse.asp?id=13000182

Mammal Species of the World: Information on Caryomys

Andreas Hertz - Google Scholar Citations

https://scholar.google.de/citations?user=apR2ZPYAAAAJ&hl=de

Keine Beschreibung vorhanden.