Template:Gray, 1821b

• Gray, J.E. 1821. On the Natural Arrangement of Vertebrose Animals. London Medical Repository 15: 296–310. HathiTrust.  
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• Date of publication: 1821

(List may be incomplete)

• Orycteropidae (fam. nov.) [p. 305]
• Manidae (fam. nov.) [p. 305]
• Rhynocerotidae (fam. nov.) [p. 306]
• Taperidae (fam. nov.) [p. 306]
• Dugongidae (fam. nov.) [p. 309]