A longstanding question in paleontology has been the influence of calcite and aragonite
seas on the evolution of carbonate skeletons. An earlier study based on 21 taxa that evolved …

Morphological similarities indicate that Palaeozoic problematic tubeworms, eg tentaculitids,
cornulitids, microconchids, trypanoporids, Anticalyptraea, and Tymbochoos, form a …

Ten distinct microstructures occur in fossil serpulids and serpulid tubes can contain several
layers with different microstructures. Diversity and complexity of serpulid skeletal structures …

Although the fossil record of annelids in general is poor, calcareous tube-building
Serpulidae are a notable exception. The" stumbling block" of understanding the serpulid …

A current paradigm accepts the presence of weakly biomineralized animals only, barely
above a low metazoan grade of organization in the terminal Neoproterozoic (Ediacaran) …

After the end-Permian mass extinction, microbialites were widespread in the shallow marine
environments in South China. Diverse microbialites are characteristic of the Early Triassic …

Improved knowledge of the fossil record, combined with molecular trees describing the
phylogenetic relationships between recent phyla, is gradually advancing our understanding …

In the present paper we trace the patterns of convergent evolution of encrusting calcareous
polychaetes and tentaculitoids with respect to the morphology and function of their tubes …

The encrusting tentaculitoid tubeworms (Middle Ordovician to Middle Jurassic) have their
acme of diversity in the Middle Paleozoic and they form a part of the Paleozoic evolutionary …

One of the main limitations to understanding the evolutionary history of hydrothermal vent
and cold seep communities is the identification of tube fossils from ancient deposits. Tube …