Note on a Reptilian Tibia and Humerus (probably of Hylæosaurus ) from the Wealden Formation in the Isle of Wight
1874; Geological Society of London; Volume: 30; Issue: 1-4 Linguagem: Inglês
10.1144/gsl.jgs.1874.030.01-04.53
ISSN2058-105X
Autores Tópico(s)Ichthyology and Marine Biology
ResumoI am indebted to Dr. Wilkins, of Newport, who has already so frequently afforded me valuable materials for the study of the fossil Reptilian fauna of the Isle of Wight, for the opportunity of bringing two very remarkable limb-bones before this Society. They were obtained several years ago, in Brixton Bay, by a fisherman since dead. The soft and brittle state of their tissues, the complete substitution throughout them of the red oxide of iron for the pyrites with which bones in this locality are usually impregnated, their envelopment in a concretionary matrix of this oxide and clay, and their incrustation with recent zoophytes and algæ concur in making it very probable that they had been long exposed to the waves and winds upon the shore between high- and low-water marks before they were discovered. The horizon of their gisement cannot be fixed more nearly than somewhere in the mottled purple and grey clays, therefore in the beds west of Cowleaze Chine, below the Hypsilophodon -bed. It is not even known that they were found lying so close together as to justify the inference from juxtaposition that they originally formed part of one skeleton. Dr. Wilkins informed me, when I first saw them in 1870, that he believed they were so associated when discovered; and the close agreement of their general facies, of their texture, of their mineralization, of the matrix about them, and of their algal and zoophytic crusts concur in rendering this extremely probable, and dispose me to regard them as members of one individual.
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