Abstract The Ordovician Radiation shaped Paleozoic marine ecosystems and led to an
increase in the biodiversity of marine organisms. The onset of the Plankton Revolution in the …

ABSTRACT A comprehensive review of a full developmental sequence of eodiscinid
trilobites reported in recent decades from Cambrian Series 2 and 3 strata is presented …

Abstract The Early Ordovician is a key interval for our understanding of the evolution of life
on Earth as it lays at the transition between the Cambrian Explosion and the Ordovician …

The biozonation of Scandinavian strata regarded as early Cambrian (Cambrian Epoch 2) in
age has been based on relatively few fossil specimens from a surprisingly low number of …

Early developmental stages of euarthropods are exceptionally rare in the fossil record. This
hampers our understanding of the biology, phylogeny, and development of this extremely …

Trilobites are one of the most diverse and abundant fossil groups from the early Palaeozoic,
and as such are useful for answering important questions about early animal evolution …

Trilobites are an abundant group of Palaeozoic marine euarthropods that appear abruptly in
the fossil record c. 521 million years ago. Quantifying the development of morphological …

Trilobite development has been intensively explored during the past decades, but
information on ancestral character combinations in the early developmental stages of …

Studies that reveal detailed information about trilobite growth, particularly early
developmental stages, are crucial for improving our understanding of the phylogenetic …

The ontogeny of two species of corynexochid trilobites from the middle Cambrian Mount Cap
Formation of the eastern Mackenzie Mountains, northern Canada, is documented. Sahtuia …