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* A new skull ascribed to ''[[Procolophon]] trigoniceps'', so far representing the most complete and best preserved specimen collected at the [[Lower Triassic]] Sanga do Cabral Supersequence ([[Brazil]]), will be described by Silva-Neves, Modesto & Dias-da-Silva (2019).<ref>{{cite journal |author1=Eduardo Silva-Neves |author2=Sean Patrick Modesto |author3=Sérgio Dias-da-Silva |year=2019 |title=A new, nearly complete skull of ''Procolophon trigoniceps'' Owen, 1876 from the Sanga do Cabral Supersequence, Lower Triassic of Southern Brazil, with phylogenetic remarks |journal=Historical Biology: An International Journal of Paleobiology |volume=in press |issue= |pages= 1–9|doi=10.1080/08912963.2018.1512106 }}</ref>
* Redescription of the [[pareiasaur]] species ''"[[Anthodon (reptile)|Anthodon]]" haughtoni'' from the [[Permian]] [[Usili Formation]] ([[Tanzania]]) is published by Maisch & Matzke (2019).<ref>{{Cite journal|author1=Michael W. Maisch |author2=Andreas T. Matzke |year=2019 |title=''Anthodon ? haughtoni'' (V. HUENE, 1944), a pareiasaurid (Parareptilia: Pareiasauria) from the Late Permian Usili Formation of Kingori, Ruhuhu Basin, Tanzania |journal=Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen |volume=291 |issue=2 |pages=197–204 |doi=10.1127/njgpa/2019/0796 }}</ref>
* [[X-ray diffraction]] study of bone fragments of ''[[Deltavjatia]] vjatkensis'' from the Kotelnich vertebrate fossil site ([[Russia]]) is published by Ryanskaya ''et al.'' (2019).<ref>{{Cite journal|author1=A. D. Ryanskaya |author2=D. V. Kiseleva |author3=O. P. Shilovsky |author4=E. S. Shagalov |year=2019 |title=XRD study of the Permian fossil bone tissue |journal=Powder Diffraction |volume=
* A study on the composition and structure of bone fragments of ''Deltavjatia vjatkensis'' from the Kotelnich vertebrate fossil site is published by Kiseleva ''et al.'' (2019), who report [[white blood cell]]-like structures, interpreted as possible leukocytes.<ref>{{Cite journal|author1=Daria Kiseleva |author2=Oleg Shilovsky |author3=Evgeny Shagalov |author4=Anastasia Ryanskaya |author5=Maria Chervyakovskaya |author6=Elizaveta Pankrushina |author7=Nadezhda Cherednichenko |year=2019 |title=Composition and structural features of two Permian parareptile (''Deltavjatia vjatkensis'', Kotelnich Site, Russia) bone fragments and their alteration during fossilisation |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=526 |pages=28–42 |doi=10.1016/j.palaeo.2019.04.015 }}</ref>
* A study on the [[Ontogeny|ontogenetic]] changes in long-bone and rib [[histology]] of ''Deltavjatia rossica'' and ''[[Scutosaurus]] karpinskii'' is published by Boitsova ''et al.'' (2019).<ref>{{Cite journal|author1=Elizaveta A. Boitsova |author2=Pavel P. Skutschas |author3=Andrey G. Sennikov |author4=Valeriy K. Golubev |author5=Vladimir V. Masuytin |author6=Olga A. Masuytina |year=2019 |title=Bone histology of two pareiasaurs from Russia (''Deltavjatia rossica'' and ''Scutosaurus karpinskii'') with implications for pareiasaurian palaeobiology |journal=Biological Journal of the Linnean Society |volume=128 |issue=2 |pages=289–310 |doi=10.1093/biolinnean/blz094 }}</ref>
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