PT - JOURNAL ARTICLE AU - Ősi, Attila AU - Prondvai, Edina AU - Géczy, Barnabás TI - The history of Late Jurassic pterosaurs housed in Hungarian collections and the revision of the holotype of <em>Pterodactylus micronyx</em> Meyer 1856 (a ‘Pester Exemplar’) AID - 10.1144/SP343.17 DP - 2010 Jan 01 TA - Geological Society, London, Special Publications PG - 277--286 VI - 343 IP - 1 4099 - http://sp.lyellcollection.org/content/343/1/277.short 4100 - http://sp.lyellcollection.org/content/343/1/277.full SO - Geological Society, London, Special Publications2010 Jan 01; 343 AB - The history and scientific significance of three Late Jurassic pterosaur specimens housed in different Hungarian palaeontological collections are described. One of these is the holotype of Pterodactylus micronyx Meyer 1856 that was thought to be lost, but with its rediscovery in the 1980s the ‘Pester Exemplar’ becomes the name-bearing type again. The second specimen is an articulated, partially three-dimensional skeleton of a Rhamphorhynchus muensteri; and the third is an articulated right hindlimb of a Pterodactylus sp. – both donated by Andor Semsey to the Hungarian Geological Institute. The anatomical revision of the holotype of P. micronyx indicated the osteological immaturity of the specimen; however, there is insufficient data on this taxon to assess its taxonomic validity.