cyclomedusa造句

• "Cyclomedusa " is widely distributed in Ediacaran strata, with a number of species described.
• The tuffs which were laid down in water are fossiliferous; " Charnia ", " Charniodiscus " and " Cyclomedusa ", are all recorded from these rocks.
• ""'Cyclomedusa " "'is a circular fossil of the Ediacaran biota; it has a circular bump in the middle and as many as five circular growth ridges around it.
• "Cyclomedusa " is known from Neoproterozoic beds in Ediacara ( Australia ), Finnmark ( Norway ), Charnwood Forest ( England ), Olenek ( Russia ), North China, multicellular animal phyla appeared . " Cyclomedusa " has no known relatives.
• "Cyclomedusa " is known from Neoproterozoic beds in Ediacara ( Australia ), Finnmark ( Norway ), Charnwood Forest ( England ), Olenek ( Russia ), North China, multicellular animal phyla appeared . " Cyclomedusa " has no known relatives.
• It has also been found in sediments dating to the Mayanian ( ~ ) . " Cyclomedusa " was originally thought to be a jellyfish but some specimens seem to be distorted to accommodate adjacent specimens on the substrate, apparently indicating a benthic ( bottom-dwelling ) creature.