Back to search
Dzik & Lendzion, 1988

The oldest arthropods of the East European Platform

Dzik, J., Lendzion, K.
DOI
DOI10.1111/j.1502-3931.1988.tb01749.x
Year1988
JournalLethaia
Volume21
Number1
Pages29-38
Typearticle in journal
LanguageEnglish
Id2267

Abstract

Cassubia Lendzion 1977 and Liwia new name (for Livia Lendzion 1975 preoccupied) found in the subsurface Zawiszany formation of the basal Cambrian in NE Poland are identified as an anomalocarid and a ‘soft-bodied’ trilobite, respectively, each being the oldest representative of its group. The presence of four free thoracic tergites in Liwia, the relatively strong sclerotization, and the apparent segmentation of the pygidial shield (expressed in the metameric distribution of marginal spines) indicate that the ‘soft-bodied’ trilobites achieved their organization by secondary softening of the dorsal exoskeleton and suppression of the development of thoracic tergites in ontogeny.

Last change: 7.3.2022
KIKNATARCSARVTÜ Loodusmuuseumi geokogudEesti Loodusmuuseumi geoloogia osakond
All materials in the portal are for free usage according to CC BY-SA , unless indiated otherwise.
Portal is part of natianal research infrastructure and geoscience data platform SARV, hosted by TalTech.
Open Book icon by Icons8.