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Tag: Cambrian

Evolution New Research New Species Organisms Paleobiology

New Fossil Anemone Reveals Innard Secrets

Kevin Zelnio October 27, 2010 AnatomyAnemoneAnthozoaBest of ZelnioCambrianChinaCnidariaEolympia pediculatafossilHexacoralliaMesenteryMicrofossilplos one

Continuing its trend as one of the top destinations for out-of-this-world fossil finds, China is yielding yet another piece to the evolutionary jigsaw puzzle. In…

View More New Fossil Anemone Reveals Innard Secrets
New Research Organisms Plankton

What in Darwin’s Name Are Chaetognaths?!

Kevin Zelnio June 7, 2010 Best of ZelnioCambrianChaetognathCurrent BiologyDeuterostomeEcdysozoaevolutionfossilmolecular phylogenyPhylogeneticsPlatyhelminthesPriapulidaProtostomeRB Editor's Selection

Lynn Margulis classified the Chaetognaths, known as arrow worms, as deuterostomes. Deuterostomy is characterized by  several developmental characteristics including radial, indeterminate cleavage, a posterior position…

View More What in Darwin’s Name Are Chaetognaths?!
Adaptations Biology Geology New Research New Species Organisms Paleobiology

100 Word Post: Hurdia victoria

Dr. M March 23, 2009 AnomalocarisArthropodaBurgess ShaleCambriancarapaceclawsCrustaceaevolutionfossilHurdiajawsegmentationsoft partsteeth

Anomalocaris ruled the Cambrian seas but apparently so did a twenty centimenter cousin. Hurdia victoria, originally described in 1912, was known from just a jumble…

View More 100 Word Post: Hurdia victoria

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