COVERS and POST CARDS COVER    Description: Toxodon, lines for name and address at right, Smilodon at lower left. Lines for sender's name and address on flap, proboscideans on reverse.         ARGENTINA 2001 COVER    Description: Diprotodon skeleton, shell, clock, medal, and Aboriginal painting at left. 'International Museum Day' '18 May 1980'. Lines for sender's name and address on flap.       AUSTRALIA 1980 COVER     120-th anniversary of the Natural History Museum.   Description: Amethyst crystal on the stamp, lines for address, boxes for the post code. At left (here shown at right) a.o. Deinotherium skeleton.       BULGARIA 2009 COVER     Extinct animals.   Description: Aurochs skeleton on the stamp, lines for address, boxes for the post code. At left another aurochs skeleton.       BULGARIA 2023 COVER     Extinct mammals.   Description: Machairodus on the stamp, lines for address, boxes for the post code. At left Chalicotherium , Machairodus, Tetralophodon, and Sivatherium at sunset.       BULGARIA 2018 POST CARD    Description: 'POSTAGE PAID / PORT PAYÉ' and lines for name and address at right, 'ROYAL ONTARIO MUSEUM / MUSÉE DE L'ONTARIO / 1914-2014' at bottom right. On the stamp and on the reverse museum items, including fossil Parasaurolophus.   CANADA 2014 COVER     Description: Peking man (Homo erectus) on the stamp. Boxes for post code of sender and recipient at top left and bottom right. Peking man family scene at left. Explanatory text in English and Chinese on reverse.       CHINA 1989 COVER     Description: Boxes for post code at top left, explanatory text in Chinese on reverse.   This cover exists with a number of different images, mostly buildings, at left, I have over thirty in my collection. These were printed for companies and institutions, apparently by the Chinese mail.     CHINA 2002 COVER     Description: 'UNESCO - GEOPARKS' and ornithopod skeleton on the stamp, 'GEOPARK', logo, and four landscapes at bottom left. Explanatory text in English and Chinese on reverse.       CHINA 2004 POST CARDS     Description: China Dinosaurland theme park at Changzhou, five different.   On the stamp: Pteranodon, Brachiosaurus, Triceratops, and Tyrannosaurus. Four cards with attractions in the park on the reverse, each including (parts of) the J. Sibbick painting of Ceratosaurus and Brachiosaurus, one smaller card with a blank reverse. Note: These cards are/were only available at the Dinosaurland park, and are therefore only semi-official.     CHINA 2007 COVER     Description: Large cover, 16 by 23 cms. Stamp image: theropod statues on a lawn in front of a modern building. Image repeated at lower left. China Dinosaurland theme park at Changzhou.     CHINA 2007 COVER     Description: Sinosauropteryx fossil and pagoda on stamp.   Exists with (at least) six different images on the left, a.o. reconstructions of Sinosauropteryx and Confuciusornis, a gate, a building, and archaeological finds. Explanatory text in Chinese on the back.   CHINA 2008 POST CARD     Description: Homo erectus bust.   Centenary of the discovery of Peking man. At left a row of six boxes for post code and airial view of museum buildings. At bottom the legend 'The Centenary of the Discovery of Zhoukoudian Site'.   CHINA 2018 POST CARD     Description: Ammonite, lines for name and address at right, building and lines for message at left. Image of the stamp repeated on reverse.       COLOMBIA 2018 POST CARD     Description: Ammonite Parapuzosia, lines for name and address at lower right, barcode at lower left. Old illustration of museum interior on reverse.       DENMARK 1998 POST CARD     Description: Tortoise skeleton, Nautilus, leaves, and crab, on reverse, in light gray, a.o. brachiopod, trilobite (Calymene), and Euomphalus fossil.       ESTONIA 2003 COVER     Description:   On the stamp: Allosaurus Room for address, five boxes for post code. Centenary of the discovery of the Niaux cave and cave paintings. Set of five, each with a different image at left. On the reverse cave paintings (Bison).     FRANCE 2006 POST CARD     Description: Diplocynodon fossil, dotted lines for sender's name and address at top left, 'Postkarte' and dotted lines for name and address at right. 'Prähistorische Tierwelt in Deutschland' and prehistoric fishes at bottom left. Reverse blank.     GERMANY FEDERAL REPUBLIC 1998 POST CARD     Description: Triceratops, dotted lines for sender's name and address at top left, at bottom left '20 Gewinner / Dino-MalWettBewerb', children's drawings of dinosaurs. Reverse blank.     GERMANY 2008 POST CARD     Description:   On the stamp: Brachiosaurus skeleton, recent animals, '200 Jahre Museum für Naturkunde Berlin'. Lines for address, at top left lines for sender's name and address, at bottom left a tortoise and a snake, 'JUGEND REPTILIEN / TAGE' and 'Internationale Briefmarken-Börse / Sindelfingen 29 bis 31. Oktober 2010'. Reverse blank.     GERMANY 2010 POST CARDS (set of 6)     Set of six 'dinosaurs' cards. Description: Dinosaur stamp at top right, lines for name and address at lower right. Stamp image repeated on reverse. Tyrannosaurus, Spinosaurus, Triceratops, Diplodocus, Brachiosaurus, Allosaurus and Hesperosaurus.       HONG KONG 2022 AEROGRAMME Description: Fossil fish. White cover with blue and red margin. 'AEROGRAMME' / 'VIA AIR MAIL' and Korean text in box at bottom left. Reverse blank.     KOREA (NORTH) 2002 COVER Description: Comptonia naumannii plant leaf fossil. Edaphosaurus reconstruction by Z. Burian at bottom right, fossil lower jaw at bottom left. Reverse blank.     KOREA (NORTH) 2004 AEROGRAMME Description: Clinocardium asagaiense fossil. Orthoceratid nautiloids on the cover, brachiopod fossils at bottom left, trilobite Tsinania at bottom right. 'AEROGRAMME' / 'VIA AIR MAIL' and Korean text in box at top left. Reverse blank.     KOREA (NORTH) 2004 COVER     Description: Neuropteridium fossil, at lower left another fern fossil and a short text in Korean. Reverse blank.     KOREA (NORTH) 2007 AEROGRAMME     Description: Yoldia shell fossil, white rectangle for address, Clinocardium asagaiense shell fossil at bottom right, recent fish in the background. Reverse blank.     KOREA (NORTH) 2007 COVER     Description: Lozenge-shaped stamp with Tyrannosaurus misidentified as Allosaurus. Drawing of Allosaurus at bottom left. Reverse blank.     KOREA (NORTH) 2010 POST CARD     Description: Megalosaurus stamp with printed perforations. 'Dinosaurs' at bottom left. Reverse: Pteranodon, two sauropods (Apatosaurus?), Chasmosaurus.     KOREA (NORTH) 2011 AEROGRAMME     Description: Chasmosaurus stamp with printed perforation. 'AEROGRAMME / VIA AIR MAIL' at top left. Drawing of a theropod (Tyrannosaurus?) at bottom left.     KOREA (NORTH) 2011 POST CARD     Description: Ditomopharangia fossil on stamp with printed perforation. Four korean characters at top, vertical centre line. Fossil crab on the reverse.     KOREA (NORTH) 2013 COVER     Description: Dumangia fossil on stamp with printed perforation. Fossil brachiopod at lower left, otherwise blank.     KOREA (NORTH) 2013 AEROGRAMME     Description: Hormotomaria fossil on stamp with printed perforation. 'AEROGRAMME / VIA AIR MAIL' at top left. Fossil bivalve shells at lower right. Rectangle with one line of Korean text for address.     KOREA (NORTH) 2013 POST CARDS     Description: Mene fossil on the stamp. Lines for name and address at right, vertical line of Arabic text at center, blank at left. Stamp image repeated on reverse. Set of two, the other card shows Stegosaurus.     LIBYA 1996 COVER    Description: Long narrow cover, blank except for stamp. The ammonite is probably Acanthoceras.         PALAU 1988 POST CARD     Description: Ammonite Perisphinctes on the stamp. Lines for name and address at right. 'Instytut geologiczny 1919-1970' in red at top. 'WARSZAWA' and building exterior at left, 'kartka pocztowa' at bottom left. Reverse blank.     POLAND 1970 POST CARD     Description: Ammonites Taramelliceras (left) and Dichotomoceras (right) on the stamp, three lines and five rectangles for address and post code, mountain landscape and bird of prey on a rock. Reverse blank.     POLAND 2007 COVER     Description: Lines for name, adress, etc, at right. Animal and name at left. Lines for sender's name, address, etc, on flap. Set of four: on the stamps: Iguanodon, Pterodactylus, Deinonychus, and Pteranodon.     ROMANIA 1994 POST CARD     Description: 'Carte postala', 'Destinatar', and dotted lines for name, adress, etc, at right. Australopithecus olteniensis family scene and text at left, dotted lines for sender's name and address. Reverse blank.     ROMANIA 1998 COVER     Description: Portrait of biospeleologist E. Racovita on the stamp, skeleton and reconstruction of Ursus spelaeus (cave bear) at left. Four lines for name and address; boxes for post code and town. From a set of four.     ROMANIA 2007 COVER   Description: Portrait of geologist A. Karpinsky on the stamp, map, crystals, ammonite and gastropod at left, Instructions for filling in post code on flap.     RUSSIA 1997 POST CARD    Description: Lines for name and address at right. Pictorial elements of the stamp arranged in a circle with Livistonia at right, surrounded by text. Boxes for post code at lower left. Reverse blank.     SOVIET UNION 1975 COVER     Description: Lines for name and address at right. Pictorial elements of the stamp with text, arranged in flower shape at left. Livistonia at left. Boxes for post code at lower left. Instructions for filling in post code on flap.     SOVIET UNION 1975 POST CARD    Description: 'Destinatario', 5 lines for address and number at right. At bottom left '80 - 15 DINOSAURIOS. Tiranosaurio'. 3-D stamp with printed perforation. On the reverse a 3-D image of a Tyrannosaurus in horrible colours.   SPAIN 2015 POST CARD    Description: 'Destinatario', 5 lines for address and number at right. At bottom left 'JUVENIA 2023, TERUEL / Dinosaurios. Aragosaurus ischiaticus'. 2 €. stamp with Aragosaurus and label with fossil bones. On the reverse a fibreglass Aragosaurus.   SPAIN 2023 POST CARD    Description: Lines for name and address at right. Biographical data of V.T. Hamlin at top left. Stamp image repeated on reverse. Part of a set, cartoons.     UNITED STATES OF AMERICA 1995