Editing Trichoplax (section)

==Discovery==
''Trichoplax'' was discovered in 1883 by the German zoologist [[Franz Eilhard Schulze]], in a seawater aquarium at the Zoological Institute in [[Graz, Austria]]. The generic name is derived from the classical Greek {{lang|grc|θρίξ}} (''{{lang|grc-Latn|thrix}}''), "hair", and {{lang|grc|πλάξ}} (''{{lang|grc-Latn|plax}}''), "plate". The specific epithet ''adhaerens'' is Latin meaning "adherent", reflecting its propensity to stick to the glass slides and pipettes used in its examination.<ref>{{cite book |language=de |first1=Rüdiger |last1=Rüdiger Wehner |first2=Walter |last2=Gehring  | title=Zoologie|edition=24th|publisher=Thieme|location= Stuttgart|date=June 2007|page=696}}</ref>

Although from the very beginning most researchers who studied ''Trichoplax'' in any detail realized that it had no close relationship to other animal phyla, the zoologist Thilo Krumbach published a hypothesis that ''Trichoplax'' is a form of the planula larva of the [[sea anemone|anemone]]-like [[hydrozoan]] ''Eleutheria krohni'' in 1907. Although this was refuted in print by Schulze and others, Krumbach's analysis became the standard textbook explanation, and nothing was printed in zoological journals about ''Trichoplax'' until the 1960s. In the 1960s and 1970s a new interest among researchers led to acceptance of [[Placozoa]] as a new animal phylum. Among the new discoveries was study of the early phases of the animals' embryonic development and evidence that the animals that people had been studying are adults, not larvae.  This newfound interest also included study of the organism in nature (as opposed to aquariums).<ref>{{Cite journal |url=http://ecolevol.de/pubs/2002/syed-schierwater-VM2002b.pdf |first1 = T. |last1=Syed |first2 = B. |last2=Schierwater | title = ''Trichoplax adhaerens'': discovered as a missing link, forgotten as a hydrozoan, re-discovered as a key to metazoan evolution | journal = [[Vie et Milieu]] | year = 2002 | volume = 52 | issue = 4 | pages = 177–187 | url-status = dead | archive-url=https://web.archive.org/web/20090731133206/http://ecolevol.de/pubs/2002/syed-schierwater-VM2002b.pdf | archive-date = 31 July 2009 }}</ref>