Cambrian
121Wheeler-Formation — Der Wheeler Shale, oft auch als Wheeler Formation bezeichnet, ist eine Gesteinsformation im US amerikanischen Bundesstaat Utah. Sie entstand im mittleren Kambrium vor zirka 507 Millionen Jahren und enthält eine Konzentratlagerstätte mit… …
122Wheeler-Schiefer — Der Wheeler Shale, oft auch als Wheeler Formation bezeichnet, ist eine Gesteinsformation im US amerikanischen Bundesstaat Utah. Sie entstand im mittleren Kambrium vor zirka 507 Millionen Jahren und enthält eine Konzentratlagerstätte mit… …
123echinoderm — /i kuy neuh derrm , ek euh neuh /, n. any marine animal of the invertebrate phylum Echinodermata, having a radiating arrangement of parts and a body wall stiffened by calcareous pieces that may protrude as spines and including the starfishes, sea …
124Burgess Shale — Infobox Rockunit name = Burgess Shale caption = Marella , the most abundant Burgess Shale organism. type = Geological formation prilithology = Shale otherlithology = namedfor = Burgess Pass namedby = Charles Doolittle Walcott region = Yoho… …
125Deuterostome — Deuterostomes Temporal range: Late Ediacaran – Recent …
126Halwaxiida — taxobox image caption= Halkieria regnum=Animalia fossil range=Early to Middle Cambrian superphylum=Lophotrochozoa phylum = See text Halwaxiida or halwaxiids is a proposed clade loosely uniting scale bearing Cambrian animals, which may lie in the… …
127Paleozoic Era — or Palaeozoic Era Major interval of geologic time, с 543–248 million years ago. From the Greek for ancient life, it is the first era of the Phanerozoic Eon and is followed by the Mesozoic Era. It is divided into six periods: (from oldest to… …
128lamp shells — ▪ animal Introduction also called brachiopod, any member of the phylum Brachiopoda, a group of bottom dwelling marine invertebrates. They are covered by two valves, or shells; one valve covers the dorsal, or top, side; the other covers… …
