Yes I think my zoology lecturer described a coral as a medusa that unaccountably stood on its head and built itself a house I ve added refs for most of the more egregious bits of OR and have tidied up the books The human section doesn t seem to me to need much doing to it I think we ought to do something about the fossils for taxobox phylogeny and diversity e g we should illustrate tabulate rugose etc alongside in a table some sort of description of the groups name time range from to description ref image or something BTW I shall be offline all next week