On the British Species of Didymograpsus. From the Annals and Magazine of Natural History, etc |
Common terms and phrases
Abereiddy anceps angle of divergence axis Baily bifidus breadth British species caduceus Caradoc Carruthers cell-apertures cell-mouths celluliferous margins characters Cladograpsus Coniston curved denticles Dicranograpsus Didymo Didymograpsus flaccidus Didymograpsus nitidus Didymograpsus patulus Didymograpsus serratulus Didymograpsus sextans divaricatus Dobbs's Linn Dumfriesshire Eggbeck Ellergill examples extensus fasciculatus figs figured fragment Frond composed Frond consisting Geinitz geminus genus Didymograpsus Geol grapsus Graptolites Graptolithus Hall Grapt Hall Pal Hall's hirundo identity inch initial point Journ Keswick lateral spines Lower Llandeilo Moffat Moffatensis mucronate base Mudstones Murchisoni narrow Nicholson obtuse radicle occupy the sides opposite side outer margins paleontologist Pooley Quart Quebec Group radicular angle rocks of Dobbs's Salter Shap show the cellules Skiddaw Slates Skiddaw-Slate Slates of Outerside slender radicle slightly enlarged space species of Didymograpsus stipes diverging stipes springing stipes vary submucronate Tetragrapsus bryonoides Thornship Beck twenty-fourth upper beds Upper Llandeilo rocks whilst width