Authors: Orr, PJ Howe, MPA

Citation: Pj. Orr et Mpa. Howe, Macrofauna and ichnofauna of the Manx Group (early Ordovician), Isle of Man, GEOL SOC SP, (160), 1999, pp. 33-44

Authors: Howe, MPA

Citation: Mpa. Howe, The Silurian fauna (graptolite and nautiloid) of the Niarbyl Formation, Isle of Man, GEOL SOC SP, (160), 1999, pp. 177-187

Authors: Morris, JH Woodcock, NH Howe, MPA

Citation: Jh. Morris et al., The Silurian succession of the Isle of Man: the late Wenlock Niarbyl Formation, Dalby Group, GEOL SOC SP, (160), 1999, pp. 189-211