A New Mammal Skull from the Late Cretaceous of Romania and Phylogenetic Affinities of Kogaionid Multituberculates Thierry SmithVlad A. CodreaAlexandru A. Solomon Original Paper 24 September 2021 Pages: 1 - 26
Distal Humeral Morphology Indicates Locomotory Divergence in Extinct Giant Kangaroos Billie JonesAlberto Martín-SerraChristine M. Janis Original Paper Open access 09 November 2021 Pages: 27 - 41
Megantereon adroveri from the Early Pleistocene of Taurida Cave, Crimea, and the European Lineage of Dirk-toothed Cats A. V. LavrovD. O. GimranovA. V. Lopatin Short Communication 12 October 2021 Pages: 43 - 49
Coat Polymorphism in Eurasian Lynx: Adaptation to Environment or Phylogeographic Legacy? Romane DarulAlexander GavashelishviliKrzysztof Schmidt Original Paper Open access 09 November 2021 Pages: 51 - 62
DNA Barcode is Efficient for Identifying Bat Species Thaís F. M. MotaThomaz M. C. FabrinSônia M. A. P. Prioli Original Paper 01 October 2021 Pages: 63 - 75
Sesamoids and Morphological Variation: a Hypothesis on the Origin of Rod-like Skeletal Elements in Aerial Mammals Lucila I. Amador Review 14 September 2021 Pages: 77 - 91
On the Unnecessary and Misleading Taxon “Cetartiodactyla” Donald R. ProtheroDaryl DomningMark Uhen Short Communication 15 September 2021 Pages: 93 - 97
Late Miocene Survival of a Hyper-Longirostrine Dolphin and the Neogene to Recent Evolution of Rostrum Proportions Among Odontocetes Olivier LambertStijn Goolaerts Original Paper 26 October 2021 Pages: 99 - 111
Tooth Size Variation in Assemblages of Tremacyllus (Hegetotheriidae, Notoungulata): Insights into Geographical Gradients, Systematics, and Sexual Dimorphism Matías A. Armella Original Paper 24 September 2021 Pages: 113 - 128
First Apatemyid Mammal from Central Asia Alexey V. LopatinAlexander O. Averianov Original Paper 01 October 2021 Pages: 129 - 135
Conservation Genetics of the Critically Endangered Riverine Rabbit, Bunolagus monticularis: Structured Populations and High mtDNA Genetic Diversity Conrad A. MattheeNatalie de WetTerence J. Robinson Original Paper 15 October 2021 Pages: 137 - 147
Cranial Anatomy of Csakvaromys bredai (Rodentia, Sciuridae, Xerinae) and Implications for Ground Squirrel Evolution and Systematics Maxim V. SinitsaStanislav ČermákLyudmila Yu. Kryuchkova Original Paper 16 September 2021 Pages: 149 - 189
Phylogeography of the capybara, Hydrochoerus hydrochaeris, in a large portion of its distribution area in South America María Soledad ByrneManuel Ruiz-GarcíaJuan Ignacio Túnez Original Paper 15 October 2021 Pages: 191 - 206
Postcranial Morphology of the Extinct Rodent Neoepiblema (Rodentia: Chinchilloidea): Insights Into the Paleobiology of Neoepiblemids Leonardo KerberAdriana M. CandelaFrancisco R. Negri Original Paper 19 October 2021 Pages: 207 - 235
A New Species of Ctenomys (Rodentia: Ctenomyidae) from Patagonia Related to C. sociabilis Federico BrookIvanna Haydée TomascoGabriel Mario Martin Original Paper 09 November 2021 Pages: 237 - 258
Correction to: A New Species of Ctenomys (Rodentia: Ctenomyidae) from Patagonia Related to C. sociabilis Federico BrookIvanna Haydée TomascoGabriel Mario Martin Correction 04 December 2021 Pages: 259 - 259
Correction to: New Specimens of Reigitherium bunodontum from the Late Cretaceous La Colonia Formation, Patagonia, Argentina and Meridiolestidan Diversity in South America Guillermo W. RougierGuillermo F. TurazziniLeandro A. Canessa Correction 27 December 2021 Pages: 261 - 261