. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. Peterson : Miocene Beds of Nebraska and Wyoming. 55 tal canal is on a line horizontal with the grinding surfaces of the teeth. The base of the coronoid process is heavy, the masseteric fossa is deep, and there are two mental foramina, one below P^ and the other below P^. The inferior incisors of the type are not preserved. The inferior canine is as heavy as the superior: it is strongly recurved, is somewhat grooved internally, has a light cingulum, and is covered with smooth enamel. There is
. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. Peterson : Miocene Beds of Nebraska and Wyoming. 55 tal canal is on a line horizontal with the grinding surfaces of the teeth. The base of the coronoid process is heavy, the masseteric fossa is deep, and there are two mental foramina, one below P^ and the other below P^. The inferior incisors of the type are not preserved. The inferior canine is as heavy as the superior: it is strongly recurved, is somewhat grooved internally, has a light cingulum, and is covered with smooth enamel. There is a short diastema between the canine and PT ; other- wise the teeth are set quite close together throughout. PT has a simple crown with the protoconid shifted well forward. P^ and P^ have slight posterior marginal lobes and very minute anterior basal tuber-. 2 Fig. 15. Dentition of Nothocyon annectens Peterson. I. Superior dentition. 2. Inferior dentition. Type, Nat. size. cles. PT is a larger tooth, and besides the posterior marginal lobe and anterior basal tubercle there is a well defined posterior accessory cusp. P^, P3-, and P¥ have rounded and small cingula. , The carnas- sial tooth is very robust ; its heel is broad and the external tubercle is somewhat larger than the internal. The anterio/ tubercles of MT are closely connected and the posterior tubercle/; are low and small; there is a heavy anterior cingulum. M^ is rar/ner small. Measurements. mm. Length of upper dentition 38 Length of upper premolar series 21 Length of the molar series 10 Antero-posterior diameter of upper carnassial io Transverse diameter of upper carnassial, anteriorly 5 Antero-posterior diameter of M1- 7 Transverse diameter of M^ Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Museum; Carnegie Museum of Natural Hist
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