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Intraspecific variability in paradoxidid trilobites from the Purujosa trilobite assemblage (middle Cambrian, northeast Spain)

100%

Esteve J.

Acta Palaeontologica Polonica

2014

tom 59

nr 1

Eccaparadoxides? pradoanus and Eccaparadoxides mediterraneus are both widespread trilobite species described from the middle Cambrian of the Mediterranean region. 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, some of which are related to ontogeny. In addition, morphometric analyses of metric characters show that the two species cannot be distinguished on the basis of these characters either. Many of the characters studied herein are widely used in definitions and descriptions of other paradoxidid species, which suggests that the taxonomic classification of other paradoxidids may be oversplit.

Regulation of telemerase activity by glutathione levels

39%

Borras C., Esteve J., Royo D., Torres L., Sastre J., Vina J., Pallardo F.

Acta Biochimica Polonica

2003

tom 50

nr Supplement 1

Ograniczanie wyników

1 Acta Biochimica Polonica

1 Acta Palaeontologica Polonica

2 Esteve J.

1 Borras C.

1 Pallardo F.

1 Royo D.

1 Sastre J.

1 Torres L.

1 Vina J.

1 2014

1 2003

Wyniki wyszukiwania

Intraspecific variability in paradoxidid trilobites from the Purujosa trilobite assemblage (middle Cambrian, northeast Spain)

Regulation of telemerase activity by glutathione levels