Information on latest early Olenekian (latest Smithian) ammonoids is available apparently from only seven regions of the world, including South Primorye. Latest Smithian evidences on this topic are recorded from the West SMID (abbreviation from the Russian name of the quarry: “Building Materials and Details”), East SMID and Golyj Cape areas in South Primorye. This provides additional information on systematic composition of latest Smithian ammonoid, as well as conodont and brachiopod assemblages from the recently identified Shimanskyites shimanskyi Zone, located between lower Olenekian Anasibirites nevolini Zone and upper Olenekian Tirolites subcassianus Zone. There are many common ammonoid species in the Shimanskyites shimanskyi Zone and the underlying Anasibirites nevolini Zone, e.g., Prosphingitoides sp., Arctoceras septentrionale (Diener), Churkites syskoi Zakharov et Shigeta, Submeekoceras? subhhydaspis (Kiparisova), Prionites markevichi Zakharov et Smyshlyaeva, ‘Anasibirites’ simanenkoi Zakharov et Smyshlyaeva, Xenoceltites? subvariocostatus Zakharov et Smyshlyaeva, and Mianwaliites zimini Zakharov et Smyshlyaeva. The base of the Shimanskyites shimanskyi Zone, marked by a negative δ¹³C_org excursion in the Kamenushka-2 Section by our previous study, coincides with the FO (first occurrence) of ammonoids Shimanskyites shimanskyi Zakharov et Smyshlyaeva and Glyptophiceras cf. sinuatum (Waagen) and conodont Hindeodella budurovi Buryi. This zone is characterized additionally by some fossils common for the overlying upper Olenekian Tirolites subcassianus Zone: ammonoids of the genus Kamenushkaites, brachiopods Bittnerihyris margaritovi (Bittner) and Lepismatina sp. and conodont ‘Neogondolella’ (=?Borinella) jubata Sweet. The latest Smithian ammonoids recorded from the Shimanskyites shimanskyi Zone totally consist of 30 taxa belonging to 11 families (Sageceratidae, Ussuiriidae, Aspenitidae, Paranannitidae, Arctoceratidae, Proptychitidae, ?Galfetitidae, Prionitidae, ?Kashmiritidae, Xenoceltitidae and Palaeophyllitidae). The problems of global correlation of uppermost Smithian strata are also discussed.

很明显，仅从世界上七个地区，包括南滨海边地区，就可以获得最新的早期Olenekian（最新的Smithian）铵盐的信息。有关该主题的最新史密斯证据来自西部SMID（采石场的俄语名称缩写：“ Building Materials and Details”），东部SMID和南滨海边地区的Golyj Cape地区。这提供了有关最新史密斯尼铵盐类的系统组成以及来自最近确定的Shimanskyites shimanskyi区的牙形石和腕足动物组合的更多信息，该区位于下Olenekian Anasibirites nevolini区和上层Olenekian Tirolites次生代亚松下带之间。Shimanskyites shimanskyi中有许多常见的氨化物物种地带和其下的Anasibirites nevolini地带，例如Prosphingitoides sp。，Arctoceras septentrionale（Diener），Churkites syskoi Zakharov et Shigeta，Submeekoceras？subhhydaspis（Kiparisova），Prionites markevichi Zakharov等Smyshlyaeva，“ Anasibirites” simanenkoi Zakharov等Smyshlyaeva，异种？Subvariocostatus Zakharov等人，以及Mianwaliites zimini Zakharov等人。所述的基Shimanskyites shimanskyi区，由一个负标记的δ ¹³ C ^_有机我们先前的研究表明，Kamenushka-2部分的偏移量与铵盐Shimanskyites shimanskyi shimanskyi Zakharov et Smyshlyaeva和Glyptophiceras cf的FO（首次出现）相吻合。sinuatum（Waagen）和牙形石Hindeodella budurovi Buryi。该区域的特征还在于上部上层Olenekian Tirolites subcassianus区域常见的一些化石：Kamenushkaites属的铵盐类，腕足类的Bittnerihyris margaritovi（Bittner）和Lepismatina sp.。和牙形' Neogondolella'（=？Borinella）jubata甜的。Shimanskyites shimanskyi区域记录的最新史密斯人的类铵盐总共包括11个科的30个分类群（Sageceratidae，Ussuiriidae，Aspenitidae，Paranannitidae，Arctoceratidae，Proptychitidae，？Galfetitidae，Prionitidae，？Kashmiritidae和Xenocel）。还讨论了最上层的史密斯地层的整体相关性问题。