Well they appeared in the Precambrian Era, as bacteria. The Paleozoic, as trilobites, brachiopods and fish.
Most brachiopods became extinct about 250 million years ago during the P-T Extinction period. Modern day brachiopods do still exist in the form of lingula.
the dinousars, Brachiopods, Spirifid, Terebratulid, and Terebratulid
brachiopods are formed from older brachiopods mating
Trilobites first appeared in the fossil record in the Atdabanian stage of the Early Cambrian period. The fist brachiopods likewise first appeared in the Early Cambrian era.
Brachiopods are related to Brachiopods, they exist in the modern day just not as abundantly as in the past.
Brachiopods are also known as lamp shells. They are marine animals that have a lifespan that ranges from 3 to 30+ years.
Brachiopods,Bivalves,Echinoderms,Bryozoans,and some corals went extinct and yes these are real words.
Paleozoic
brachiopods
In the Triassic period
Earthquakes did appear during the Jurassic period along with volcano eruptions.