Volume 13: 2020-2022

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New records of cricetid rodents from the medial Clarendonian (middle Miocene) Esmeralda Formation, Fish Lake Valley, Nevada,  Thomas S. Kelly, Robert A. Martin, and Christophe Ronez  p. 1-32.   Kelly et al 2020   

Mammals from the Blue Ash local fauna (Whitneyan, Oligocene), South Dakota. Insectivorans (Leptictida, Apatotheria, Lipotyphla),  William W. Korth  p. 33-47.   Korth 2020a

Third occurrence of the problematical rodent Epeiromys from late Whitneyan
(Oligocene) of South Dakota,  William W. Korth  p. 48-51.   Korth 2020b

First occurrence of a partial dentition of Rhombodus binkhorsti (Batomorphi:
Rhombodontidae) in the Americas, with comments on the North American
distribution of the species, David J. Cicimurri and Jun A. Ebersole  p. 52-66.   Cicimurri and Ebersole 2020

Erratum: Corrections to Martin et al. 2020 (Vol. 12, No. 4)  p. 67.  Erratum Martin et al 2020

Marsupials from the Blue Ash local fauna (Whitneyan, Oligocene), South Dakota. Carnivora, Artiodactyla, and additional Rodentia,
William W. Korth and Joseph S. Sullivan  p. 69-84.    Korth and Sullivan 2021

Insectivorans from the Medicine Pole Hills local fauna (Chadronian) of Bowman County, North Dakota,  William W. Korth, Allen J. Kihm, and Karew K. Schumaker  p. 85-105.    Korth et al 2021

Osteichthyans from the Shark River Formation (middle Eocene) and Kirkwood Formation (early Miocene) contact, Monmouth County, New Jersey, USA with comments on habitat shifts along the Western Atlantic Coastal Plain,  Harry M. Maisch IV and Martin A. Becker  p. 106-127.    Maisch and Becker 2021

Narial structures in Ichthyosaurus and other early Jurassic ichthyosaurs as precursors to a completely subdivided naris,  Judy A. Massare, William R. Wahl and Dean R. Lomax  p. 128-139.   Massare et al 2021

SPECIAL ISSUE

Mammals of the early Uintan (Middle Eocene) Rancho Mission Viejo Local Fauna, Santiago Formation, Orange County, California,    Thomas S. Kelly   p.  141-189.   Kelly 2021

SPECIAL ISSUE

Fossil Mammals from ant mounds situated on exposures of the Big Cottonwood Creek Member of the Chadron Formation (latest Eocene-early Oligocene), Sioux County, Nebraska,   William W. Korth, Clint A. Boyd, Jeff J. Person and Deborah Anderson   p. 191-344.   Korth et al 2022

Author Index to Volume 13   p. 345-346.