Bulletin of the New York State MuseumThe University, 1907 - 387 Seiten |
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angles basal base beak beds bibrachials brachioles broad calcite cephalon Chapman Plantation character Chonetes Coblentzian Cobleskill concave concentric lines convex crystals curved Dalhousie Dalmanites deltoid deposition depressed developed dorsal valve edge Edmunds Hill elevated elongate Eurypterus extended fauna feet figure fold formation fossil furrows Gaspé genus Geol Geology gneiss Grève grit grooves growth Hall hight hinge line Hudson River Hughmilleria hydrospires indicate interradial lateral leaf cushion length Lepidodendron limestone Lower Devonic Lyon Mountain margin marked median Medina Museum narrow oblique Oneida conglomerate Oriskany outer outline Percé rock pinnules plications portion postglacial faults Presque Isle stream Pterinea pygidium quartzite radial region Rensselaeria Rep't Report rhombohedron ribs rock sandstone segments shale Shawangunk shell side Siluric sinus slates slightly slope species specimen spines striae structure surface suture syncline thickness transverse trunk Upper Siluric ventral valve vertical whorl width wing plates York
Beliebte Passagen
Seite 348 - Catalogue of the Cabinet of Natural History of the State of New York and of the Historical and Antiquarian Collection annexed thereto.
Seite 40 - Monroe in several publications of 1891, 1892 [1893], and 1895, as the name of a group of rocks distinguished in southern Michigan, as against the standing of the name published in 1894 for a shale formation in southeastern New York. "The Committee recommended that the Monroe group of southern Michigan should retain the name, and this action has been approved for official publications of the Geological Survey. "The conclusion was reached on the ground that priority and prescription, or established...
Seite 308 - Pa. 1858. vn, pt 2. p. 828. fit?. 675. of leaf cushion characters and arrangement, by the form and details of its leaf scars, and by its persistent small leaves which are more or less distinctly conical at their bases. Comparison of the fossil with other and less imposing fragments of Devonic Lycopods shows it to be one of the more highly developed representatives of a fairly distinct archaic group foreshadowing the later genera Bothrodendron (Cyclostigma), Sigillaria, Lepidodendron, and Lepidophloios.
Seite 135 - The underside of the cephalic doublure x2 and three pygidia natural size oped as to overhang the sulcus, while each segment of the axis bears a single row of 5, 6 or 7 pustules. The length of these shields will average 23 mm with an anterior width of 29 mm. The cephala belonging to these pygidia are not completely preserved but indicate a type of simple glabellar lobation as in D. micrurus, with closely pustulose surface. The border is smooth laterally but in front is extended into a short crenulated...
Seite 134 - Dalmanites veiti nov. Associated with specimens of D. phacoptyx from the limestone hills behind Peninsula. Gaspe Bay, are abundant pygidia and cephala of uniform size, unlike the species with which they are associated as well as with any others of our acquaintance. These pygidia are relatively small, subequally triangular, flattened above and rather abruptly sloping at the margins ; apparently without tail spine. There are 11-12 lateral ribs, 6 or 7 of which are grooved medially. The axis bears 13-14...
Seite 49 - ... shales, and the intergrading is exposed at a number of points along the west slope of Green Pond mountain and in New York. On the northwestern slope of Pine hill, beds of passage are finely exposed, and the red shale and red quartzite are interlaminated for a thickness of several feet." Also [p. 391] : " The Longwood shales are not known to overlap, for they merge into the upper part of the Green Pond rocks in all the exposure.