Marine organisms have occupied hard substrates since the Archaean. Shells, rocks, wood
and sedimentary hardgrounds offer relatively stable habitats compared to unconsolidated …

Ecological character displacement, mostly seen as increased differences of size in sympatry
between closely‐related or similar species, is a focal hypothesis assuming that species too …

Abstract Middle to Upper Ordovician ironstone and associated sedimentary rocks of the
West Asturian‐Leonese and Cantabrian tectonostratigraphic zones, Spain, provide new …

In an effort to further our understanding of ecosystem structure on multiple temporal and
biogeographic scales, the influence of competitive interactions in an invasive setting was …

Shell boring is one of the few quantifiable, well-preserved biotic interactions in the fossil
record. While some workers have used boring intensity as a proxy for predation pressure in …

Numerous studies have documented a pattern at global scales of an increase in potentially
anti-predatory ornament in brachiopods during the mid-Paleozoic. Other studies have …

Atrypids examined from the lower Genshaw Formation of the Middle Devonian (early middle
Givetian) Traverse Group include a large assemblage of Pseudoatrypa bearing a rich fauna …

Determining whether morphological trends in fossil species represent evolution within a
lineage or lateral shifts in morphologically variable populations through time requires a …

In the first Paleontological Society short course dealing with functional morphology of extinct
brachiopod taxa, Grant (1981, p. 127) emphasized analogy with living species in …

Strophomenoid brachiopods had thin, concavo‐convex shells, were ubiquitous colonizers of
Palaeozoic muddy seafloors, and are hypothesized to have filter‐fed in a concave‐upward …