Fig. 5. LF 7064, holotype of Batillodus beaveri gen. et sp. nov. from the Cherryvale Shale Formation (Kasimovian, Upper Pennsylvanian, Late Carboniferous) of Overland Park, Kansas, USA in A, lingual view; B, labial view; C, lateral view.
Bruce and Rene Lauer have been very busy. They are listed as co-authors of a new paper about shark teeth from the Late Carboniferous of Kansas - "New Janassid Petalodontiform (Chondrichthyes) teeth from the Late Carboniferous of Kansas, USA". The paper was published in the jounal Neues Jahrbuch für Geologie und Paläontologie.
Abstract
An associated but not articulated group of 15 isolated janassid petalodontiform teeth, sampling the lower left and upper right parts of the dentition, is described from the marine Kasimovian (Upper Pennsylvanian, Late Carboniferous) Block Limestone Member (Cherryvale Shale Formation, Linn Subgroup, Kansas City Group) of Overland Park, Kansas City Metropolitan area, Johnson County, Kansas, USA. The teeth are described and allocated to Batillodus beaveri gen. et sp. nov. The teeth of this taxon are the largest of any known janassid, measuring up to 70 mm high. The dentition exhibits strong dignathic heterodonty. Lower teeth possess relatively long roots and crowns which are longer than wide with smooth, non-cuspidate cutting edges. Upper teeth have relatively short roots, crowns which are wider than they are high and a relatively large central trough. Upper symphyseal teeth possess multicuspidate cutting edges to the crown. Zoobank paper registration: urn:lsid:zoobank.org:pub:DA17921D-E46B-491E-99AD-35769A146DAC
