Rekordids

Rekordids are a group of extinct trilobites belonging to the order Proparida. They are characterized by a distinctively shaped cephalon, the head shield, which is often broad and semicircular. The glabella, a central raised area on the cephalon, is typically short and tumid, meaning it is swollen or rounded. Their eyes are usually large and crescent-shaped.

The thorax of Rekordids consists of multiple segments, typically between eight and twelve, which are relatively short and broad. The pygidium, the tail shield, is usually large and semicircular, often fused from several segments. The segmentation on the pygidium is typically well-defined and often bears a marginal border.

Rekordids are known from the Devonian period, with fossils found in various parts of the world, including North America and Europe. They are often found in shallow marine environments. The precise taxonomic relationships and classification within the Proparida are subject to ongoing research and debate among paleontologists. Their distinct morphology makes them relatively easy to identify within fossil assemblages.