Szalay, Frederick S. (December 1969). "Origin and Evolution of Function of the Mesonychid Condylarth Feeding Mechanism". Evolution. 23 (4): 703–720. doi:10.2307/2406864. JSTOR2406864. PMID28562872.
Van Valen, Leigh (Jan 1980). "Ankalagon, New Name (Mammalia:Condylartha)". Journal of Paleontology. 54 (1): 266. JSTOR1304186.
Szalay, Frederick S. (December 1969). "Origin and Evolution of Function of the Mesonychid Condylarth Feeding Mechanism". Evolution. 23 (4): 703–720. doi:10.2307/2406864. JSTOR2406864. PMID28562872.
nih.gov
pubmed.ncbi.nlm.nih.gov
Szalay, Frederick S. (December 1969). "Origin and Evolution of Function of the Mesonychid Condylarth Feeding Mechanism". Evolution. 23 (4): 703–720. doi:10.2307/2406864. JSTOR2406864. PMID28562872.