Proposed Early Cambrian cephalopods are chimaeras, the oldest known cephalopods are 30 m.y. younger

Affiliations

• ¹ New York State Museum, 222 Madison Ave., Albany, NY, USA. ed.landing@nysed.gov.
• ² Finnish Museum of Natural History, University of Helsinki, 00014, Helsinki, Finland.
• ³ Oklahoma Museum of Natural History and School of Geology and Geophysics, University of Oklahoma, Norman, OK, 73072, USA.
• ⁴ Lehrstuhl für Geodynamik und Geomaterialforschung, Institut für Geographie und Geologie, Bayerische Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.