A new fossil specimen of the Suidae (Mammalia, Artiodactyla) from the upper Miocene Oiso Formation and a brief review of Neogene suids from Japan_Supplementary

File A1. 3D turntable movie of an epoxy cast of KPM-NNV 964 (Fig. 1A; left m3 lacking the hypoconulid; cf. Propotamochoerus hyotherioides from the Miocene Oiso Formation of Japan) scanned using a contact stylus measurement method employing a 3D scanner (Roland MODELA MDX-15), with a scan pitch of 0.05 mm. The scanned STL file was prepared using Meshmixer (Autodesk, Inc.) and was transformed into a D movie using Blender (Blender Foundation).

Fig. A1. High resolution photographs of the two suid molar specimens from the Miocene Oiso Formation of Japan. A, cf. Propotamochoerus hyotherioides (Schlosser), KPMNNV 964, left m3 lacking the hypoconulid: A1, occlusal view (stereo pair); A2, schematic drawing of occlusal view; A3, lingual view; A4, buccal view; A5, mesial view; A6, distal view. B, Suinae gen. et sp. indet., KPM-NNV 1,   a distal part of right M1 or M2 (Oshima, 2007): B1, buccal view; B2, distal view; B3, disto-occlusal view; B4, occlusal view; B5, mesial view; B6, dorsal view; B7, lingual view.

Fig. A2. Photo of KPM-NNV 964 (left m3 lacking the hypoconulid of cf. Propotamochoerus hyotherioides) with matrix in occlusal view.

Table A1. Data for Fig. 2, showing the measurements (in mm) of m3 widths for KPM-NNV 964 and some comparative suid specimens.

Table A2. List of Neogene suid fossil specimens from Japan.

文件A1：日本更新统御鹿群KPM-NNV 964（图1A；左侧m3缺失下原尖，参见日本上新统御鹿群Oiso组的Propotamochoerus hyotherioides）的环氧树脂铸型，采用接触式触笔测量法，利用3D扫描仪（Roland MODELA MDX-15）进行扫描，扫描间距为0.05毫米。扫描得到的STL文件经Meshmixer（Autodesk, Inc.）处理，并使用Blender（Blender Foundation）转换为D电影格式。

图A1：日本上新统御鹿群两颗猪科动物磨牙标本的高分辨率照片。A，参见Propotamochoerus hyotherioides（Schlosser），KPMNNV 964，左侧m3缺失下原尖：A1，咬合面视图（立体对）；A2，咬合面视图的示意图；A3，舌侧视图；A4，颊侧视图；A5，近中侧视图；A6，远中侧视图。B，苏猪科属种未定，KPM-NNV 1，右侧M1或M2的远端部分（Oshima，2007）：B1，颊侧视图；B2，远端视图；B3，近远中侧视图；B4，咬合面视图；B5，近中侧视图；B6，背侧视图；B7，舌侧视图。

图A2：KPM-NNV 964（左侧m3缺失下原尖的cf. Propotamochoerus hyotherioides）的咬合面视图照片。

表A1：图2数据，展示了KPM-NNV 964及一些比较猪科动物标本的m3宽度测量值（单位：毫米）。

表A2：日本新生代猪科动物化石标本清单。