File:Smith fossils3.jpg

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Historical plate showing fossils that characterize the “Oak-Tree Clay” (today known as the Kimmeridge Clay) of England (from William Smith, 1817)

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Description
English: Historical plate showing fossils that characterize the “Oak-Tree Clay” (corresponding to the Kimmeridge Clay of modern nomenclature, Kimmeridgian, middle Upper Jurassic) of England. This plate comes from the fundamental biostratigraphical work of the pioneer of modern Geology William Smith. Note that the names of the fossil taxa may have changed since, mainly in a way, that the historical genus concepts subsequently changed over to family or even higher-ranked taxa. For example, the genus “Ammonites” is not even used anymore.[1] The specimen shown in figure 7 has later been referred to the species Pictonia baylei of the family Aulacostephanidae. The genus Ostrea is still in use but its historical concept today corresponds to the family Ostreidae, and many historical species have been assigned to newly erected genera. The oyster shell shown in figure 6 today is referred to as Liostrea delta or Deltoideum delta. The „Terebratula“ in figure 9 is probably the rhynchonellid brachiopod which today is referred to as Torquirhynchia inconstans (originally formally named „Terebratula inconstans“ by Sowerby, 1821).

Deutsch: Historische Bildtafel mit Abbildungen von Fossilien, die den „Oak-Tree Clay“ (heute als Kimmeridge Clay bezeichnet und dem Kimmeridgium, d.h. dem mittleren Oberjura, zugeordnet) von England kennzeichnen. Diese Bildtafel entstammt der fundamentalen biostratigraphischen Arbeit des Pioniers der modernen Geologie William Smith. Man beachte, dass die Namen der Fossiltaxa sich seither wahrscheinlich geändert haben, hauptsächlich derart, dass historische Gattungskozepte später oft auf Familien oder noch höherrangige Taxa übergingen. Beispielsweise wird die Gattung „Ammonites“ heute nicht einmal mehr benutzt.[1] Der in Abbildung 7 gezeigte Ammonit wurde nachfolgend der Spezies Pictonia baylei aus der Familie Aulacostephanidae zugewiesen. Die Gattung Ostrea wird noch benutzt, aber ihr historisches Konzept entspricht heute der Familie Ostreidae und viele historische Arten sind neu errichteten Gattungen zugeordnet worden. Die in Abbildung 6 dargestellte Austernschale wird heute als Liostrea delta oder Deltoideum delta bezeichnet. Die „Terebratula“ in Abbildung 9 ist wahrscheinlich ein rhynchonellider Brachiopode, der heute Torquirhynchia inconstans genannt wird (ursprünglich formell benannt als „Terebratula inconstans“ von Sowerby, 1821).

  1. ↑ a b Francis Hemming, W. J. Arkell (1954): Opinion 305: Suppression, under the Plenary Powers, of the generic name Ammonites Bruguiere, 1789, and addition to the Official List of Generic Names in Zoology of the generic name Arietites Waagen, 1869 (Class Cephalopoda, Order Ammonoidea). Opinions and declarations rendered by the International Commission on Zoological Nomenclature 8(22):297–311 (archive.org)
Date (original publication date)
Source Plate 1 in: Strata identified by organized fossils, containing prints on colored paper of the most characteristic specimens in each stratum. Part 3 (1817). W. Arding, London, doi:10.5962/bhl.title.106808.
Author William Smith (1769–1839)

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Date/TimeThumbnailDimensionsUserComment
current10:12, 22 February 2019Thumbnail for version as of 10:12, 22 February 20192,114 × 1,400 (2.98 MB)Gretarsson (talk | contribs)larger, better resoluted, geometrically adjusted, and better balanced in color
05:07, 23 March 2007Thumbnail for version as of 05:07, 23 March 20071,486 × 986 (210 KB)Rcashman (talk | contribs)A plate from William Smith's 1815 work ''Strata by Organized Fossils''

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