P. S. Spencer

Publications11
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Citations202
Highly Influential Citations27
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Fossil Reptiles of Great Britain
Access to the countryside. Museum abbreviations. British Carboniferous fossil reptile sites. British Permian fossil reptile sites. British Triassic fossil reptile sites. Britsh Early Jurassic fossil… Expand
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Toxic components of Lathyrus
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British Cretaceous fossil reptile sites
The Cretaceous System in Britain (Figures 8.1, 8.2) is represented by two broad phases of deposition which relate to palaeogeography. Earth movements during the Late Jurassic uplifted most of… Expand
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British Early Jurassic fossil reptile sites
Fossil reptiles have been found in numerous localities in the Mid Jurassic (Aalenian-Callovian) of southern England and west Scotland, but the most productive sources for reptiles are mainly in rocks… Expand
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British Triassic fossil reptile sites
The British Triassic deposits have a broad Ushaped outcrop in the English Midlands, with a continuation south-westwards to south Wales and Devon (Figure 4.1). Smaller outcrops occur in northwest… Expand
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British Permian fossil reptile sites
British Permian time can be grouped into two broad units, an earlier phase of predominantly terrestrial deposition and a later phase characterized by greater marine influence. The Early Permian of… Expand
British Late Jurassic fossil reptile sites
Fossil reptiles have been found in numerous localities in the Mid Jurassic (Aalenian-Callovian) of southern England and west Scotland, but the most productive sources for reptiles are mainly in rocks… Expand
Continuing education in rural areas : delivery systems for distance education
British Caenozoic fossil reptile sites
The British Caenozoic is marked by extensive vulcanism in northern areas (especially Mull and the other Hebridean islands, and Northern Ireland), and by deposition of sediments in a number of basins… Expand
British Carboniferous fossil reptile sites
Within the past decade two possible Carboniferous reptiles have come to light in Britain, one from the Lower Carboniferous of West Lothian, Scotland and the other from the Upper Carboniferous of… Expand