Paradoxides brachyrhachis Linnarsson, 1883 versus Paradoxides mediterraneus Pompeckj, 1901: a problematic determination

  title={Paradoxides brachyrhachis Linnarsson, 1883 versus Paradoxides mediterraneus Pompeckj, 1901: a problematic determination},
  author={Mar{\'i}a Eugenia Dies {\'A}lvarez and Adrian W. A. Rushton and Rodolfo Gozalo and Gian Luigi Pillola and Eladio Li{\~n}{\'a}n and Per Erik Ahlberg},
  pages={104 - 95}
A revision of paradoxidid trilobites reveals that previous identifications of specimens from Sardinia and Spain as the Nordic trilobite species Paradoxides brachyrhachis Linnarsson, 1883, are mistaken. The southern species, occurring also in France, is here referred to Eccaparadoxides mediterraneus (Pompeckj, 1901). Main differences are seen in the preocular field, pleural furrow and pygidium. The species P. brachyrhachis is referred with question to the genus Mawddachites Fletcher 2007. 
Enrollment and thoracic morphology in paradoxidid trilobites from the Cambrian of the Czech Republic
Abstract The discovery of the partially enrolled specimens of large, late holaspid specimens of paradoxidid trilobites Paradoxides paradoxissimus gracilis, Hydrocephalus minor and Acadoparadoxides
Taphonomy and Palaeoecology of multi-element skeletoninvertebrates: a genetic model for exceptional preservation
The aim of the research is to improve the understanding on the origin of fossil accumulations by investigating their taphonomic and sedimentological features and by using stratigraphic data and the
Intraspecific Variability in Paradoxidid Trilobites from the Purujosa Trilobite Assemblage (Middle Cambrian, Northeast Spain)
Analysis based on a pooled sample of 500 specimens demonstrates that many of the characters that have been used to define these species show continuous variations, which suggests that the taxonomic classification of other paradoxidids may be oversplit.


Hallazgo de Paradoxides (Eccaparadoxides) brachyrhachisLinnarsson 1883, en el Cámbrico Medio de Zafra (Badajoz).
Se describen y figuran por primera vez los ejemplares pertenecientes a la especie Paradoxides (E) brachyrhachis Linnarsson 1883 encontrados en el Cambrico Medio de Zafra (Badajoz).
The middle Cambrian cosmopolitan key species Lejopyge laevigata and its biozone: new data from Sweden
The middle Cambrian Lejopyge laevigata Zone is poorly exposed in Scandinavia. Both this zone, however, and the succeeding Agnostus pisiformis Zone are well exposed at a classic locality at Gudhem,
Palaeogeographical controls on the Cambrian trilobite immigration and evolutionary patterns reported in the western Gondwana margin
Abstract Southward drifting of the western Gondwanan margin during the Cambrian has been demonstrated by means of both palaeomagnetic methods and lithological indicators of climate (such as
Correlating the Zones of 'Paradoxides hicksii' and 'Paradoxides davidis' in Cambrian Series 3
The zones of Paradoxides hicksii and P. davidis incorporate the more-widely recognised agnostid atavus to punctuosus zones and contain a suite of polymerid trilobites commonly associated with
Trilobite diversity patterns in the Middle Cambrian of southwestern Europe: a comparative study
Abstract This paper describes the pattern of trilobite diversity throughout the Middle Cambrian in two fossiliferous basins of the western Gondwana margin: the Iberian Chains (northeastern Spain) and
Interpretation of tectonically deformed fossils
Abstract Taxonomic information can be recovered from tectonically deformed fossils by analysing the strain and then restoring the fossils to their original shapes. Trilobites and graptolites are used
On the Discovery of Paradoxides in Britain
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  • Geology
    Quarterly Journal of the Geological Society of London
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During a few days' holiday in South Pembrokeshire last summer, I went to the neighbourhood of St. David's. I wished to see the Cambrian and Lower Silurian beds recently mapped by Mr. T. Aveline, and
Datos paleontológicos, tafonómicos y biofacies de un segmento de la sucesión del Cámbrico Medio en la Rambla de Valdemiedes (Murero,Zaragoza)
La presencia (le algunos fosiles de tipo Bui-gess SItale en los materiales del Cambrico Inferior y Medio que afloran junto a la localidad de Murero (Zaragoza) nos hizo albergar la esperanza de que un
Le Cambrien Moyen de la Montagne Noire. Imprimerie d'Oc
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Crustacea (Paläontologie)
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