Molar teeth of all 
the Mammalia. 
For Horse Molars. 
Huxley and Lydekker 
(1886) 
For Rhinoceros Mo- For Rhinoceros Mo- For Ungulate 
lars. Molars. 
a based up- Terminology used by peee, sane wt — a Russi. 
on evolution from a nglish authors, uvi an authors, Riitimeyer 
tritubercular, ances- Bo A akino (’67) De Blainville (1846), and Kowalevsky 
tral molar type. Busk(1870), Lydek- Ga (1878) Pav- (1893) 
(1882), low (1892). 
Foote (1882). 
Pilea Protocone Denticule interne du pr. lobe innenpfeiler des vorjochs........ Anterior pillar 
Molar | Paracone Second Costa Denticule externe, pr. lobe terior crescent 
m AS OOD Costae (in part) Denticule externe, sec. lobe Posterior crescent 
Denticule interne, sec. lobe Innenpfciler des nachjochs.....Posterior pillar 
Toas (pp 
Tetartocone 
Second { Parastyle First Costa = Buttress Pericones, Randgipfeln Anterior ridge | 
Pilar s or f Mesostyle ddle ridge 
1 Metastyle Posterior ridge 
t Hypostyle -caca Posterior collis (in part) Or 
Second Ectoloph ...... Exterior lamina = Dorsum j= == COPÈI externe.....s.ssssesececssseressssssor Aussenwand 
Greate E Protoloph.....-++++.0+++00+/ Anterior collis Colline secant es iki antérieure... eee orjoch 
Metaloph Median collis La troisiéme - a be postérieure.......... Nachjoch 
7 P Anterior Valley isese s Vallon oblique oes 
Valleys { Postsinus Posterior Valley......... te postérieure 
Sen Crochet Posterior combing plate Uncas T ; ee 
Folds” | Aiteroche pecan ee aceéeler S 
Crista Anterior combing plate { agan caes.. Amter(erochet) — 
Secondary { Prae, Medi, and Fossettes — } Cement Lakes 
Cavities Postfossettes Fossette postérieure a : | = 
Cingulum { Cingulum 7 Wulst 
Posterior collis (in part) — cingulum, Bourrelet 
guard 
