Hålles

Hålles is a genus of extinct terrestrial brachiopod, a type of marine animal that lived during the Cambrian period. These animals were characterized by their distinct shell morphology, which included a triangulated, five- to six- chambered shell with a metastatic ventral margin.

The genus Hålles is split into several species, each with unique characteristics and dental relationships. Hålles vary greatly in size, with specimens ranging from a few millimeters to several centimeters in length. The shell material of Hålles is composed of layers of minerals, such as calcite and iron-rich phyllosilicates, which vary in thickness and composition depending on the species.

Fossilized shells of Hålles have been found in several Cambrian marine fossil sites around the world. These sites often provide valuable information about the environment and ecosystem during the time period in which Hålles lived. Hålles, like other Cambrian brachiopods, likely had a complex life cycle that involved feeding on food particles in the water column and possibly attached to shells.

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