To see accurate pricing, please choose your delivery country.
 
 
United States
£ GBP
All Shops

British Wildlife

8 issues per year 84 pages per issue Subscription only

British Wildlife is the leading natural history magazine in the UK, providing essential reading for both enthusiast and professional naturalists and wildlife conservationists. Published eight times a year, British Wildlife bridges the gap between popular writing and scientific literature through a combination of long-form articles, regular columns and reports, book reviews and letters.

Subscriptions from £33 per year

Conservation Land Management

4 issues per year 44 pages per issue Subscription only

Conservation Land Management (CLM) is a quarterly magazine that is widely regarded as essential reading for all who are involved in land management for nature conservation, across the British Isles. CLM includes long-form articles, events listings, publication reviews, new product information and updates, reports of conferences and letters.

Subscriptions from £26 per year
Academic & Professional Books  Palaeontology  Palaeozoology & Extinctions

New Middle and Late Anisian (Middle Triassic) Ammonoid Faunas from Northwestern Nevada (USA) Taxonomy and Biochronology

Proceedings
Series: Fossils and Strata Volume: 52
By: C Monnet(Author), Hugo Bucher(Author)
200 pages
Publisher: Wiley-Blackwell
New Middle and Late Anisian (Middle Triassic) Ammonoid Faunas from Northwestern Nevada (USA)
Click to have a closer look
  • New Middle and Late Anisian (Middle Triassic) Ammonoid Faunas from Northwestern Nevada (USA) ISBN: 9781405163651 Paperback Mar 2007 Not in stock: Usually dispatched within 6 days
    £60.95
    #243616
Price: £60.95
About this book Customer reviews Related titles

About this book

An Intensive investigation of the Fossil Hill Member (northwestern Nevada, United States) leads to the recognition of new ammonoid faunas that bracket the Middle/Late Anisian boundary. These faunas are of great significance for biochronological correlation across the low palaeolatitude belt from the eastern Pacific to the western end of the Tethys.

Three new sections in the Augusta Mountains have yielded a rich faunal succession, whose upper part correlates with the resampled lower portion of the classic Fossil Hill section in the Humboldt Range. In the new biostratigraphical sequence, the scope of the latest middle Anisian Shoshonensis Zone is expanded by the introduction of a new uppermost subdivision, namely the Bulogites mojsvari Subzone, which correlates with the Grossreifling fauna of the western Tethys. The Gymnotoceras weitschati Zone and Gymnotoceras mimetus Zone are introduced at the base of the Late Anisian, in ascending order. The Weitschati Zone, composed of the Billingsites cordeyi and Rieberites transiformis subzones, is approximately equivalent to the ill-defined Trinodosus Zone of the Tethyan realm. Included in the Mimetus Zone are the Dixiceras lawsoni and Marcouxites spinifer subzones. The Gymonotoceras rotelliformis Zone, which was formerly considered as a correlative of the Trinodosus Zone, was previously subdivided into five subzones, mainly on the basis of various species referred to as "Paraceratites". These species, whose respective ranges are shown largely to overlap, are reassigned to the new genera Silberlingia, Ceccaceras, and Brackites. Hence, the number of subdivisions of the Rotelliformis Zone is reduced to two, namely the Brackites vogdesi and Gymnotoceras blakei subzones, in ascending order.

Eleven genera (i.e. Chiratites, Billingsites, Dixieceras, Jenksites, Rieppelites, Rieberites, Marcouxites, Silberlingia, Ceccaceras, Brackites, Oxylongobardites) and 15 species (i.e. Balatonites hexatuberculatus, Chiratites retrospinosus, C. bituberculatus, Billingsites cordeyi, B. escargueli, Gymnotoceras weitschati, G. mimetus, Jenksites flexicostatus, Rieppelites boletzkyi, R. shevyrevi, Rieberites transiformis, Silberlingia praecursor, Ceccaceras stecki, Brackites spinosus, Oxylongobardites acutus) are newly described. "Ceratites" lawsom and "Ceratites" spinifer, as previously described by Smith (1914) and subsequently synonymized by Silberling & Nichols (1982), are recognized as valid species and are assigned to the new genera Dixieceras and Marcouxites, respectively.

Customer Reviews

Proceedings
Series: Fossils and Strata Volume: 52
By: C Monnet(Author), Hugo Bucher(Author)
200 pages
Publisher: Wiley-Blackwell
Current promotions
New and Forthcoming BooksNHBS Moth TrapBritish Wildlife MagazineBuyers Guides