APPENDIX 547 



Fam. Corjrphodontidae. Coryphodonts. 



f Cort/pJiodon. L. Eoc, N. Amer. 

 Fam. 'Uintatheriidae' (= Eobasileidic). Eobasileids or Uiiitatheres. 



f Ji(ii/ii/o/>sis. L. Eoc, N. Amer. 



t ' Dinnceras,' ' Tinoceras' (= UinUitheriurn). M. Eoc, X. Amer. 



f ' Loxnlnphodnn ' (= Eobasileus). U. Eoc, N. Amer. 



XV. Ordku ARTIODACTYLA. Even-toed Ungulates.i 



(1) Section PRIMITIVE A RTIOD A CTYLS (iaxniViesoi more or hss 

 uncertain affinities). 



A. Bunodont families, with conic or incipiently cresceutic molar cusps. 

 Fa:m. Trigonolestidae. Trigonolestids. 



f Tri(/onolestes. L. Eoc, N. Amer. 



Fam. Leptochoeridae. Leptoclujeres. 



t Stibarus. L. to M. Olig., N. Amer. 



t Leptnchoernx. j\I. to U. Olig., N. Amer. 



Fam. Dichobunidae. Dichobunes of Europe, Homacodonts of North 

 America. 



f Dichohune. M. Eoc, Eur. 



f Mouillacitherium. M. Eoc, Eur. 



f Hnnuicodon. M. Eoc, N. Amer. 



t liiinoineri/x. U. Eoc, N. Amer. 



Inc. Sed. 



t Micros us. M. Eoc, N. Amer. 



f Ant'uicodon. M. Eoc,' N". Amer. 



•f- Sdrcolemur. I\l. Eoc, N. Amer. 



f Nditoiueri/x. M. Eoc, N. Amer. 



f He/oh i/KS. M. Eoc, N. Amer. 



B. Bunoselenodont families, with combined conic and crescentic nidlur 



cusps. 



Fam. Anthracotheriidae. Antliracotheres. 

 t Lophioliunodon. M. Eoc, Eur. 

 t Catodontherium. M. Eoc, Eur. 



1 For a general treatment of the Artiodactyla consult the tf^xtbooks of Flower and Lydekker, 

 Beddard, Weber, and Cope's article, The Artiodactyla (Adipv. Naturalist. Vol. XXII, 18.SH, pp. 

 107iM095). The fossil artiodactyls of Europe are treated in Von Zittel's Handbucii der Paliion- 

 tologie, Mammalia, and in Kowalevsky's Monojiraphit^ der Gattuiiii Anthracotherium Cuv. nnd 

 Versuch einer natiirlichen Classification der fossilen Hufthiere {Pala'.nnfof/raphica, Bd. XXII, 

 1873). For a modern view of the interrelationships of the artiodactyl families, consult: Mat- 

 thew, W. D., A Complete Skeleton of Meri/roihis, Ball. Amrr. Mas. Nat. Hist., Vol. XX, liM14, 

 pp 101-129. an<l Osteology of Bl((stoinpry.r, and Phylogeny of the American CcrvidiE, idem, Vol. 

 XXIV, 1908, pp. 535-5(i2. The present arrangement is by Osborn and Matthew. 



