Details Details PDF BIBTEX RIS Title Orthacanthus platypternus (Cope, 1883) (Chondrichthyes: Xenacanthiformes) teeth andother isolated vertebrate remains from a single horizon in the early Permian (Artinskian) Craddock Bonebed, lower Clear Fork Group, Baylor County, Texas, USA. Journal title Acta Geologica Polonica Yearbook 2018 Volume vol. 68 Issue No 3 Authors Johnson, Gary D. Keywords Orthacanthus platypternus ; Early Permian ; Craddock Bonebed ; Texas Divisions of PAS Nauki o Ziemi Coverage 421–436 Publisher Komitet Nauk Geologicznych PAN ; Wydział Geologii UW Date 2018.10.01 Type Artykuły / Articles Identifier ISSN 0001-5709 Source Acta Geologica Polonica; 2018; vol. 68; No 3; 421–436