Observations on macroborings from the White Limestone Group of Jamaica

The Middle Eocene to Middle Miocene White Limestone Group contains uncommon, but relatively diverse, macroborings along with moderately diverse, poor to moderately preserved, soft-sediment ichnotaxa. The Troy, Somerset, Moneague and Montpelier formations have yielded macroborings. Nine ichnogenera represented by twenty-nine ichnospecies are identified. These are Caulostrepsis taeniola Clarke, Clionolithes irregularis Fenton & Fenton, Cl. radicans Clarke, Conchotrema canna Price, Co. tenuis Teichert, Conchotrema isp., Entobia cateniformis Bromley & d’Alessandro, E. gigantea Bromley & d’Alessandro, E. megastoma (Fischer), E. ovula Bromley & d’Alessandro, E. paradoxa (Fischer), Entobia ispp. AA, AB, AC, AD, Gastrochaenolites anauchen Wilson & Palmer, G. cluniformis Kelly & Bromley, G. dijugus Kelly & Bromley, G. lapidicus Kelly & Bromley, G. torpedo Kelly & Bromley, Gastrochaenolites isp., Maeandropolydora crassa Bromley & d’Alessandro, M. decipiens Voigt, M. elegans Bromley & d’Alessandro, M. sulcans Voigt, Oichnus simplex Bromley, O. paraboloides Bromley, Trypanites isp. and Uniglobites glomerata (Morris).