Sentence examples for clypeasteroid from inspiring English sources

Based on larval skeleton measurements, the facultative feeding period of larvae was estimated in 5 clypeasteroid species [13].

Rich Mooi for the enthusiastic discussions on clypeasteroid morphology and comments on a draft version of this manuscript.

Except for the two clypeasteroid subtaxa Laganina and Scutellina, this structure can be found in all irregular taxa, located at the beginning of the stomach.

Based on our data, we do not follow Koehler and instead consider the gastric caecum to be present in at least the two basal-most extant clypeasteroid taxa, the Clypeasteridae and the Arachnoididae.

Whether the frilled zone (or sacculated area) at the abaxial edge of most parts of the stomach in certain derived clypeasteroid taxa must be considered a derivative of the gastric caecum needs to be assessed using comparative histological analyses on freshly fixed specimens.

Strong evidence of this phenomenon is, for example, the presence of a lantern of Aristotle in adult clypeasteroids, while in the remaining extant and fossil irregular echinoids, including in the ancestral lineage of Clypeasteroida (a branch of Cassiduloida – see [3] for an analysis of cassiduloid-clypeasteroid relationships), the lantern atrophies before adult life [2].