INDRICOTHERIUM N. GEN. 



77 



h Hyracodontidae (y Hyrachyus os lunatum tojii>ko HanojiOBHay CM-femeHa, TaKL qTo ea cyciaB- 

 Hbia noBepxeocTH ci, os magnum h os unciforme noqTH paBHbi; y Triplopus h Hyracodon OHa 

 yate noqTH BnojiuE noKonTca Ha unciforme), ohl >Ke HaCMOAaeTca h y HOCoporoBL (Trigonias — 

 Aceratherium) h y TamipoBL, — npra qeML Bcer/ia, ecTecTBeimo, cycraBuaa noBepxHOCTL 

 scaphoideum - magnum paBHaeTca cycraBHofi noBepxHocTn lunatum - unciforme. 



Ëfaaqe HAert npouecct y oflHonajibixL <i>opml: nepBOHaqajibHO ohl Bnojmf> HanoivinnaeTL 

 to, ito HaôJiioAaeTca y Hyracodontid\, ho 3aTfoiL, bl cbh3h cl qpe3BbiqaiïHbiML pa3BHTieML 

 (ymnpeHieMTj BepxHeS cycraBHOH noBepxHocTn) cpejiHHro najibna, yBejmqHBaiOTca pa.sM'fepbi 

 os magnum, Koropaa noAOABnraeTca bbobb nofTL os lunatum h TaKHML oôpa30ML KaKt 6bi 

 ocTaHaBJHBaeTL h oôpamaerL n&3a,a,L npoueccb ôoKOBoro CMkmeHia KapnajbHbixL KocTeii. 

 EcTecTBeHHO, hto bl stoml ciyqa'E cycTaBHbia noBepxHOCTii lunatum - unciforme (nocKOJibKy 

 OHa coxpaHaerca, nanp., y .TOmajiH; y ocjia — OTcyTCTByerb) h scaphoideum - magnum 

 HepaBHbi, h BTopaa bo ivmoro pa3L npeBocxoAHTt nepByio. 



Y HOcoporoBL Jinnib y KpaîiHiïXL *opML et Han6ojite cwbHO BbipaateHHbML HepaBen- 

 CTBOMTb naibneBt H'fecKOJibKO yBejuraiBaroTca pa3MT>pbi magnum h cooxBBTCTBeHHo cycraBHaq 

 noBepxHOCTb s.- m. ôojibme cycraBHOH noBepxHoern l.-u., ho oôpaxearo nepeM^uiema Ha 

 née lunatum ne Ha6jnoAaeTca BOBce, h TaKHML oôpa30ML HH,n,pHKOTepiH bl stoml OTHomeHin 

 aBJiaeTca ôoJi'Be bbicoko cneniaiH3npoBaHHbiML, qf>ML Kanaa ih6o Apyraa *opivia epe^u 

 Rhinoceroidea. HaoôoporL, bl stoml npH3HaKB ohl yaîe nfecKOJibKO npnôJiHacaeTCH kl erpoe- 

 aiEO carpus y iomaj,ii. KoHeqHo, sto cxoji,ctbo HCKJH0 i iHTejibH0 <ï>yHKH,ioHa.nbHoe, oôycjiOBjienHoe 

 qpesBbiqaHHbiM-b pa3BHTieML cpe^Haro najibna. 



TaKHML o6pa30Mt, Moatno 3aKJiioqHTb, qTO y HH^pnKOTepia khctb iiepe,a,Hen 

 KonequocTH MHHOBajia cTa,a,iio TpexnajioH KoneaHocTn h CAï>Jiajia 3HaqnTejibHbie 

 mars bl HanpaBJieHin OAHonajioiï. 



OTJinqHTejibHOK) ocoôeHaocTbio HHflpnKOTepia HBjiaeTca TaKace pacnpocTpaneme cycraBHon 

 noBepxHocTn radius'a bl 3KTa„ibH0ML HanpaBjeHiii Tanaîe h Ha noBepxnocTb os cunéiforme, 

 tskt> hto AJia ulna ocTaeTca TOJbKO Hapyaceaa qacrb ea BepxHen cyeraBBOH noBepxHocTn. 

 3totl npn3HaKT> TaKiKe oTJinqaerL HHipHKOTepia otl nocoporoBL. 



Hto KacaeTca oixfcjibHbix-b Koeren, to y os scaphoideum oô"mia oqepiaHia kocth hoco- 

 poatbaro xnna (cpe/uiee MeaîAy Hyracodon h nocoporoMt), TaKa<e BHyTpeHina cycTaBHbia 

 noBepxaocTH — W3 os lunatum, Tor^a Kant ancTajibHaH n npoKCHMajibHaa noBepxnocTii 

 HecyTt cycTaBHbis noBepxHOCTH, KOTopbia no CBoen ^opnit ropa3AO ôjuiate kocth Jiomajur. 

 HHTepecHw H-ÉKOTopbia qep™ cxo^cTBa ci TannpoMt. 



Os lunatum bt> cbohxt> ^ncTajibHbixt n npoKCHMajibHbix'b cycTaBHbixt noBepxHOCTaxt 

 OTJiHsaeTca oit Hocopora, ho euie ne Aocrarjia jroma^HHbixt npH3HaKOBi>. 



Os cunéiforme HiviteTt iviaio oGmaro no o6m,eH ^opivit ct> HoeoporoMt, Hyracodon, euie 

 MeHbme cl cooTB'ÊTCTByroni.eH KocTbio Tannpa, a Tanate y nea coBepmeHHO HHbia cycTaBHbia 

 iiOBepxHocTH. nocitAnia ôoji'Ée cxoACTBa hwbhdtl cl cycTaBHbBin noBepxHocraiMH y JiomaAH, 

 y KOTopoiï h camaa koctb, eenu He cbohmh oqepTauiaMH, to hjiockoh CBoen «topuiof ôjnaîe kl 



