Archetypomys Erlianomys Pappaceras Mesonyx Forstercooperia Nanjemoy Formation 2010 in paleomammalogy Irdin Manha Formation Iren Dabasu Formation 2020 in paleomammalogy 2015 in paleomammalogy 2021 in paleomammalogy 2012 in paleomammalogy 2019 in paleomammalogy 2016 in paleomammalogy