Conodonts

Polychaetes

Polychaetes, segmented worms bearing parapodia, are first found in the Cambrian Period, and all exhibit an elongated body broken into many segments. More specifically, the Polychaete worms within the order Eunicida are also first found in the Cambrian and are further characterized by ventral maxillae and dorsal mandibles positioned within the pharynx. Eunicids are foundContinue reading “Polychaetes”

Conodonts are perhaps the most important fossils to our daily life because of their use as index fossils. Their “teeth,” called conodont elements, preserve well and can be found in almost any Paleozoic sedimentary rock. While traditionally seen as vertebrates, even fish, their taxonomic positions are still disputed (4). Conodonts found at Seven Stars ConodontaContinue reading “Conodonts”