Figures and Descriptions of the Palaeozoic Fossils of Cornwall, Devon, and West Somerset: Observed in the Course of the Ordnance Geological Survey of that DistrictLongman, Brown, Green, & Longmans, 1841 - 231 Seiten |
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2nd Series appear argillaceous Atrypa AVICULA Babbacombe Baggy Point Barton beak beds Brachiopoda Brushford calcareous Calymene carbonaceous carbonaceous group cardinal area Character Character.-General figure cleavage Clymenia Coddon Hill CONCHIFERA convex coral Croyde CYATHOCRINUS CYRTOCERAS Devonshire dip south distinct district dorsal Eifel elongated Favosites Fenestella fossiliferous fossils furrows G. T. tab Genus Geol geological Goldfuss Goniatites gray grits hinge line Ilfracombe lamellæ laminated LEPTÆNA limestone Linton Locality Locality.-In Cornwall Locality.-In North Devon longitudinal Lonsdale lower valve LOXONEMA magnified Marwood Meadsfoot mountain limestone Mudstone Mudstone Bay Munster nearly Newton Bushel oblique obtuse ORTHIS ORTHOCERAS Petherwin group Phillips Pilton Pilton group Plate Plymouth posterior prominent quarry resemblance ribs ridges rounded schists seen septa shales shell shew side Silurian siphuncle slate slaty rocks South Devon South Petherwin Sowerby Sowerby's specimens spiral SPIRIFERA strata striæ striated striation TEREBRATULA Torquay Trans transverse Turbinolopsis undulated Upper Palæozoic upper valve whorls Yorkshire
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Seite i - John PHILLIPS, MA, FRS, FGS, &c. Fourth Edition, corrected to the Present Time ; with 4 Plates. Fcp. 8vo. 5s. Phillips. — Figures and Descriptions of the Palaeozoic Fossils of Cornwall, Devon, and West Somerset ; observed in the course of the Ordnance Geological Survey of that District.
Seite 27 - Internal surface marked with radiating ridges, corresponding to the external interstices between the rows ; between these ridges are many oval depressions, which penetrate only half through the substance of the coral, and no where reach the outer face.
Seite 196 - There is, or appears to be, at Landlake Quarry, some unconformity between the black shaley beds which are at the base of the Carbonaceous group and the grey calciferous rocks of the Petherwin group. These latter dip N. 30° E., and the former dip S. 5° E. The line of valley is here the junction — a circumstance which diminishes the importance of the observation, as a ground for inferring a real unconformity. . . . . There is, moreover, some appearance of a minute reversal of the dip of the black...
Seite 196 - Fossils," which had not previously caught my eye; he says : " There is, or appears to be, at Landlake Quarry, some unconformity between the black shaley beds which are at the base of the Carbonaceous group and the grey calciferous rocks of the Petherwin group. These latter dip N. 30° E., and the former dip S. 5° E. The line of valley is here the junction — a circumstance which diminishes the importance of the observation, as a ground for inferring a real unconformity. . . . . There is, moreover,...
Seite 18 - amorphous,' composed of concentric or nearly plane masses perforated by flexuous or vermiform small tubuli and by larger straight subparallel or radiating open tubes, persistent through the mass. This definition includes those species with simple tubes giving origin to radiating tubuli passing through the thickened lamin.-E.
Seite v - to examine and describe, for the purpose of publication, the organic remains of the older strata " of western England. Mr. Phillips entered with zeal upon this work, and in 1841 was published "Figures and Description of Palasozoic Fossils of Cornwall, Devon, and West Somerset
Seite 135 - In the explanation of the plate referred to is a note by Mr. Broderip, calling attention to some analogy between this fossil and Chelyosoma macleayanum, a species of tunicate mollusca, which has a few coriaceous plates on the upper surface only.
Seite 123 - Davisi] and the distinctness of the marginal ridges diminishes ; section of a volution, when young, trans\ersely lunulate, with age becoming hastate; septa ? siphuncle ? A singular and beautiful shell, which passes through a series of forms parallel to those described in regard to Goniatites reticulatus in Geol. of Yorkshire, vol. ii., pi. 19, figs. 26-32. I at first believed it to be identical therewith, but the umbilicus is here larger, the ridges on the inner edge of the whorls are continued into...
Seite 194 - ... conceal it . . . On the •west the carbonaceous group occupies the coast from Fremington nearly to Tintagel, and on the south it follows a line much bent by the effect of the protruding granitic masses, especially of Dartmoor. In the centre of this great district no limestone occurs, and there are no other fossils than obscure marks of plants or mere carbonaceous stains ; but on the southern border the limestone bands reappear almost exactly as on the northern side with similar mineral characters...
Seite 202 - ... stratified nature of which may still be observed on the southern side of the arch, while to the north, the continuation of the same beds is entirely broken up and interrupted; masses of limestone appearing to be forced into the surrounding beds. At Babbicombe, in the western part of the bay, we discover, for some distance from the junction with the red sandstone, the base of the limestone series, dipping south-east, and partially resting on and penetrated by trap. These lower beds are black shales...