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About: Margaretia     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Whole100003553, within Data Space : dbpedia.org associated with source document(s)

Type: animalyago:WikicatBurgessShaleFossilsyago:Adult109605289yago:CausalAgent100007347yago:Dodo110022908yago:LivingThing100004258yago:Object100002684yago:Oldster110376523yago:Organism100004475yago:Person100007846yago:PhysicalEntity100001930yago:YagoLegalActoryago:YagoLegalActorGeoyago:Whole100003553 New Facet based on Instances of this Class

Margaretia is a frondose organism known from the middle Cambrian Burgess shale and the Kinzers Formation of Pennsylvania. Its fronds reached about 10 cm in length and are peppered with a range of length-parallel oval holes. It was originally interpreted as an alcyonarian coral. It was later reclassified as a green alga closely resembling modern Caulerpa by D.F. Satterthwait in her Ph.D. thesis in 1976, a finding supported by Conway Morris and Robison in 1988. More recently, it has been treated as an organic tube, that is used as nest of hemichordate Oesia.