lOPCKia H nnatHEM'BJIOBHa cephalopoda CBBEPHOfi CHBHPir. 45 



qHHaa ci nepBaro SoKOBoro, n ab'£ JionacTH ivieaJAy hhmh. CiAJia BbicoKia h cpaBHHTejibno cjiaSo 

 pascfeqeHHbifl, jonacTn ysKifl h ji^mREhin. cb HecBMMexpHqHbiMH OKoeqaHiaMH. OSmiii xapaKTepi 

 3T0H lacTH jQnacTHOH jiHHin AOBOJibHO xopomo cooTBtTCTByeTT) xapaKxepy jonacTHOH jihhIh 

 Temnoptychites lioplitoides , H3o6pa>KeHHOH C. H. HnKHTEHbiMi) wh oCjifeAaxT) M'ljiOBoro 

 nepioAa» (laSji. II, <i>nr. 3). 



Poah: Cardioeeras, Amaltheus, Phylloeeras, Cadoeeras, 



Maeroeephalites. 



CARDIOCERAS rpynnw CORDATI. 



BiTAOBoe onpeA'feJieHie Cardioeeras rpynnw Cordati bi npoAOJiHteeie MHornx'b xfexi cnjibHO 

 saTpyAHflJiocb rfew'b oocToaTejibCTBOMi, mto nepBOBaiajibHO ycTaaoBJieHabie bhaw btoh rpynnbi 

 He MoryTT, CTHxaibCfl AOCTaTO^HO xcquo onpeA'feJieeHbiMR, h pncyuKH, nxi H3o6pa?KaK)iii,ic, Majio 

 noMorajH b^ yaceeHiE xapaniepHbixi npHSHaKOB^ 3thxt. bhaobt>, ocoSenBO, ecjin npnuaib bo 

 BHHMaHie CHjibuyK) BospaciHyio BSMfenqHBOCTb Cordati. dto saMtqaeie othochtca kt. TaKHiu-b 

 BHAaMx, mK^ Ammonites vertehralis Sow., Am. guadratus ^ow., Aa>Ke m, ciojib qacToonncbi- 

 BaBuieoca <vopu'h,vav,'hAm.cordaius. J\m aioro BHAaCoBepSa a^jitj oqenb KpaTKoe onncaaie h 

 ABa pncyHKa, CA'feJiaHHbie cb AByx^ aMMOHHioBT., Koxopwe, npo HamnxT) coBpeweHabixT) nona- 

 liaxi rpaenn.ax'b BHAa, aojim^hbi Sbixb oxaeceHbi Kt AByMx pasebiMi) BHAaM-b. bhaobomI) 

 pasjinqin aiHxi *opMTi AoraAbiBajica h CoBepSH, leaiXi owh h ynoMHeaex-b bt, onncaniH 

 Am. cordatus. OAHaKO, nocjitAywmie aBxopbi (A'0p5HHbn), bm'Scxo xoro qxoobi pasA'feJiHXb 

 3XH BHAW, uep'&AKO 6biJiH CKJiOHHbi oxHOCHXb Kh Am. cordtttus paA^ ein,e Apyrnxt ^opia-b, 

 oxA'feJieHHbix'bCoBepSH bt> oco5bie BHAbi, IIpaBAa, najieoHxojiorH iiocjiiAHen qexBepxn XIX Biwa 



B03CXaH0BHJIH CaMOCXOaxeJIbHOCXb noqXH BCfeX) BHAOBX,, yCXaUOBJGHHblX'bCOBepSH, HO OCUOBUOH 



bhatj Am. cordatus ao taxi, nopi. eiii,e noHHMaexca cnnrnKOM-b mnpoKO h hoat* 3xhmti HasBaaieMi. 

 AO camaro nocji'fiAHaro speMeHH onncbiBawxca ^opMbi, oqeHb pasaooSpasHbia no cbohwl npn- 

 SHaKaMt. HoBaa anoxa bX) nayqeHin bhaobtj axoH rpynnbi AOJUKna naqaxbca Cb 1905 roAa, 

 KorAa BT) «Palaeontologia universalis» noaBHjincb *OTorpa<i>HqecKia penpoAyKn,iH Am. cordatus, 

 Am. vertehralis n Am. excavatus ct opHrHHajioBX) CoBepSn. 3xh penpoAyKi^in Aaroxx. xenepb 

 acHoe nonaxie npnsHaK'fe nasBanHbixt bhaobX) CoBep60. Bx) qacxHocxe, no oxeomeniH) 

 Kh Am. cordatus, xenepb npaiiMO BpeMa npHAaxb axojiy BHAy neoSxoAnMyio onpeA'^JienHOCxb, 

 ycjiOBHBiuHCb nasbiBaxb 3xhmX) HMeneMX) xy <[>opMy, Koxopyw cawxCoBepSH cqHxajn> rjiasHbiMX) 

 xnnoMT) CBoero BHAa (<i>Hr. 2 na xa5ji. 17), a Apyryio 4>opMy (<pnr. 4), Koxopyio camTjCoBepSH 

 cqHxaexT) KaKi 6bi npHAaxKOMx. kt. CBoejiy BHAy'H saiuiqaexx, qxo h3t> nea coScxBenHO cjitAO- 

 Bajio 6bi CA^Jiaxb oco6biH bhaxj, 6biJ0 6bi Jiyqme oxA'fejHXb ex. ApyroS bhax-, nasBaBij ero, 

 uanp,, Cardioeeras subcordatum. TaKoe oxA'fejienie Jiyqme cooxBtxcxBOBajio 6hi HaniHMX. coBpe- 

 MennbiMXj nonaxiaMX) BHAaxi aMMOHHTOBX., a HasBanie (7. s«f6cor<ia^«)w HanoMHHajio 6bi Hcxopiio 

 npoHc^oatAeaia 3xoro BHAa. H OHHCbiBaio noA^ HMeneM'b C. cordatum oahh^ Hat 3K3eMnjia- 



