PPT-Trilobite
Author : olivia-moreira | Published Date : 2016-07-31
Phylogeny wwwtrilobitesus Teaching Tools Cambrian Lower Middle Upper Ordovician Lower Middle Upper Silurian Ediacaran Devonian Carboniferous Permian Redlichiida
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Trilobite: Transcript
Phylogeny wwwtrilobitesus Teaching Tools Cambrian Lower Middle Upper Ordovician Lower Middle Upper Silurian Ediacaran Devonian Carboniferous Permian Redlichiida. There are three formal periods of early trilobite development:. Protaspid. : . larval . form . comprised . of the beginnings of indistinguishable . cephalon . and . pygidium. Then, a . transverse furrow appeared between the cephalon and pygidium (i.e., head and tail. By: McKenna Holman. Condit- Grade 5. Information on Trilobites. :. Name Means: . "Three lobes" . Type: . Pre-dinosaur sea creatures. Lived When: . Cambrian-Permian (540-248 million years ago). Number of Segements: . www.trilobites.us. . Teaching Tools. Cambrian. Lower. . Middle Upper. Ordovician. Lower Middle Upper. Silurian. Ediacaran. Devonian. Carboniferous. Permian. Redlichiida. Olenellena. . Teaching Tools. Cambrian. Lower Middle Upper. Ordovician. Lower Middle Upper. Silurian. Ediacaran. Devonian. Carboniferous. Permian. Redlichiida. Olenellena. Redlichina. Agnostida.
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