The algorithm for constructing of biochronological scales for small mammals of the Pleistocene is a step-by-step or parallel process of accumulation of informative data with subsequent implementation in the form of graphic schemes. Step 1. Description of ortho- and parastratigraphic taxa and the construction of phylogenetic trees based on the evolution of morphological features of individual species. Step 2., The faunistic complexes, therioassociations and the phases of development of associations based on the taxonomic composition of the microtheriofauna of the Pleistocene taphocenoses are described. Step 3. Determination of the characteristics of paleofaunal reference sections (PRS) and index-sections (IS). Step 4. Construction of macroevolutionary biochronological scales (BHS) of taxonomic rationale based on biochronozones only one (monozonal scales) or several (polyzonal scales) types. Step 5. Construction of microevolutionary biochronological scales of morphometric rationale based on phenochronozones. Step 6. The need to use any of the three variants of the BHS as a taxonomic and morphometric rationale, depending on the taphonomic conditions of the burial of the remains, their quantity, the variety of taxa, the research objectives, etc. These biochronological scales can be used for the dismemberment of quaternary deposits by isolating biostratigraphic units (biozones) in specific sections, columns of boreholes and correlating them at local and regional scales.

Full Text

1. Vangengejm E.A., Pevzner M.A., Tesakov A.S., 2008. Zonal dismemberment of Quaternary of Eastern Europe by small mammals. Stratigrafiya. Geologicheskaya korrelyatsiya, vol. 9, № 3, p. 76–88 (In Russian).
2. Vangengejm E.A., Tesakov A.S., 2008. Principles of construction of biochronological scale by Pliocene and Pleistocene mammals. State of the problem. Bull. komissii po izucheniyu chetvertichnogo perioda, № 68, p. 59–69 (In Russian).
3. Gromov V.I., 1948. Paleontological and archaeological basis of stratigraphy of Pleistocene continental sediments in the USSR territory (mammals, Paleolith), Trudy GIN AN SSSR. Moscow: Izdatelstvo AN SSSR, vol. 64, 521 p. (In Russian).
4. Krokhmal’ A.I., 2014. Reference biostratigraphic sections of the paleofaunistic subdivisions of the Eopleistocene in the South of Eastern Europe. Buletinul Institutului de Geologie si Seismologie al ASM, № 1, p. 94–104 (In Russian).
5. Krokhmal’ A.I., 2015. Reference sections of the historicalfaunistic subdivisions of the Middle Neopleistocene in the South of Eastern Europe. Geologichnyy zhurnal, No 3 (352), p. 77–86 (In Russian).
6. Krokhmal’ A.I., 2016a. Biochronological scale of taxonomic justification on the basis of Pleistocene microtheriofaune in the South of Eastern Europe. PALEOSTRAT-2016. Annual meeting (scientific conference) of MOIP paleontologic section and Moscow branch of Paleontological Society of RAS, Moscow, 26-28 Jan. 2016. Program and abstracts of papers. (Ed. A.S. Alexeev). Moscow: PIN RAS, p. 45–46 (In Russian).
7. Krokhmal’ A.I., 2016b. Biochronological scale of morphometric justification on the basis of Pleistocene microtheriofaune in the South of Eastern Europe. 100 anniversary of Paleontological Society of Russia. Problems and perspectives of paleotological researches. Materials of LXII session of Paleontological Society of RAS (4-8 Apr. 2016, St.- Peterburg). St.-Peterburg: Publ. house VSEGEI, p. 248–249 (In Russian).
8. Krokhmal’ A.I., 2016v. Odontometry and phylogenesis of voles of the subgenus Microtus at Pleistocene in the South of Eastern Europe. The new problems of geology. Materials of scientific-practical conference by memory of the V.P. Makrydyn (Kharkiv, 27-28 May 2016). Kharkiv: Publ. house Ivanchenko I.S, р. 19–21 (In Russian).
9. Krokhmal’ A.I., 2016g. The using of representatives of the phylogenetic line Villanyia (Borsodia)-Prolagurus-Lagurus for rationale of regional stratons of Ukrainian Pleistocene. Problems of rationale of regional stratons of Ukrainian Phanerozoic: Materials of ХХХVII session of Paleontological Society of NAS of Ukraine (Kyiv, 7-9 Sept. 2016). Kyiv, p. 103–105 (In Russian).
10. Krokhmal’ O., 2016d. Odontometry and phylogenesis of voles of the subgenus Stenocranius, Pallasiinus, Terricola and genus Lagurodon at Pleistocene in the South of Eastern Europe. Problems of Phanerozoic geology of Ukraine. Materials of VIІ All-Ukrainian scientific conference (6-8 Oct. 2016, Lviv). Lviv, p. 48–51. (In Ukrainian).
11. Nadachowski A., Motuzko A.N., Svanov D.L., 2003. Stratigraphic divisions of the Quaternary of Belarus, Poland and the adjacent territories from studying small mammals. Stratigraphy and palaeontology of geological formations of Belarus. Proceeding of the International Conference dedicated to the 100-th anniversary of Alexandr Vasilievich Fursenko, noted palaeontologist and stratigrapher, associate member of the Academy of Sciences of Belarus, Minsk, 30-31 Jan. 2003. Minsk, р. 217–223 (In Russian).
12. Stratigraphic Code of Ukraine. 2nd ed. 2012. (Resp. editor P.F. Gozhyk). Kyiv, 66 p. (In Ukrainian).
13. Kordos L., 1994. Revised Biostratigraphy of the Early Man Site at Vertesszölös, Hungary. Cour. Forsch.-Inst. Senckenberg, vol. 171, p. 225–236 (In English).
14. Krokhmal A., 2010. Morphogenesis of Allophaiomys teeth – the basis of European Early Pleistocene biostratigraphy. Abstracts of the International INQUA-SEQS Conference (Rostov-on-Don, June 21–26, 2010). Rostov-on-Don, p. 85–87 (In English).
15. Krokhmal’ A.I., 2014. Reference sections of the paleofaunal subdivisions of the final Eopleistocene and Early Neopleistocene in the south of Eastern Europe. Geologichnyy Zhurnal, № 4 (349), p. 57–66 (In English).
16. Krokhmal’ A., 2015. Geological events of Pleistocene and fossil small mammals: unity the time and place – indexsections, 2nd International Congress on Stratigraphy STRATI 2015, 19-23. July 2015, Graz, Austria. Abstracts: Ber. Inst. Erdwiss. K.-F.-Univ. Graz., Bd 21, p. 211 (In English).