Fun Facts about dinosaurs and the time between them

Who named them

No.	Fact
3	Omeisaurus was named by Young in 1939.
9	Velociraptor was named by Osborn in 1924.
13	Doedicurus was named by Burmeister in 1874.
14	Valdosaurus was named by Galton in 1977.
19	Meganeura was named by Brongniart in 1885.
42	Mamenchisaurus was named by Young in 1954.
44	Styracosaurus was named by Lambe in 1913.
54	Chasmosaurus was named by Lambe in 1914.
59	Baryonyx was named by Charig and Milner in 1986.
66	Ferenceratops is the newest name here, given in 2026.
67	Ferenceratops was named by Maidment et al. in 2026.
69	Spinosaurus was named by Stromer in 1915.
72	Chirostenotes was named by Gilmore in 1924.
85	Isisaurus was named by Wilson and Upchurch in 2003.
86	Baptornis was named by Marsh in 1877.
91	Carcharodontosaurus was named by Stromer in 1931.
96	Gorgosaurus was named by Lambe in 1914.
101	Zalmoxes was named by Weishampel et al. in 2003.
102	Coelophysis was named by Cope in 1889.
104	Macrauchenia was named by Owen in 1838.
109	Kentrosaurus was named by Hennig in 1915.
112	Dacentrurus was named by Lucas in 1902.
117	Opabinia was named by Walcott in 1912.
121	Rhamphorhynchus was named by Meyer in 1847.
127	Giraffatitan was named by Paul in 1988.
128	Bactrosaurus was named by Gilmore in 1933.
135	Masiakasaurus was named by Sampson et al. in 2001.
138	Telmatosaurus was named by Nopcsa in 1903.
145	Avimimus was named by Kurzanov in 1981.
150	Massospondylus was named by Owen in 1854.
153	Liopleurodon was named by Sauvage in 1873.
156	Kwanasaurus was named by Martz and Small in 2019.
170	Stenonychosaurus was named by Sternberg in 1932.
172	Utahceratops was named by Sampson et al. in 2010.
179	Ichthyornis was named by Marsh in 1872.
180	Deltadromeus was named by Sereno et al. in 1996.
184	Torvosaurus was named by Galton and Jensen in 1979.
186	Dicraeosaurus was named by Janensch in 1914.
187	Anchiceratops was named by Brown in 1914.
188	Plateosaurus was named by Meyer in 1837.
194	Rapetosaurus was named by Curry Rogers and Forster in 2001.

How many fossils

No.	Fact
4	Troodon is known from 103 fossil sites.
11	Trilobita is known from 5,000 fossil sites, more than anything else here.
18	Basilosaurus is known from 88 fossil sites.
47	Smilodon is known from 130 fossil sites.
62	Iguanodon is known from 133 fossil sites.
88	Ichthyosaurus is known from 101 fossil sites.
89	Glyptodon is known from 535 fossil sites.
97	Allosaurus is known from 147 fossil sites.
108	Saurornitholestes is known from 148 fossil sites.
113	Tyrannosaurus is known from 87 fossil sites.
143	Mammuthus is known from 685 fossil sites.
146	Camarasaurus is known from 138 fossil sites.
157	Triceratops is known from 166 fossil sites.
166	Dimetrodon is known from 94 fossil sites.
177	Everything known about Opabinia comes from three fossil sites.

Where they come from

No.	Fact
5	Paraceratherium has been found in seven countries.
8	Every Utahceratops fossil here comes from the United States.
10	Every Acrocanthosaurus fossil here comes from the United States.
15	Every Masiakasaurus fossil here comes from Madagascar.
17	Ceratosaurus has been found in four countries.
21	Every Pteranodon fossil here comes from the United States.
22	13 of the 15 Neuquensaurus fossils come from Argentina. The rest come from Uruguay.
24	Velociraptor has been found in four countries.
26	Baryonyx has been found in four countries.
27	Every Pentaceratops fossil here comes from the United States.
36	Every Giraffatitan fossil here comes from Tanzania.
37	25 of the 30 Rhamphorhynchus fossils come from Germany. The rest come from Portugal.
39	Every Anchisaurus fossil here comes from the United States.
41	Liopleurodon has been found in four countries.
46	Mammuthus has been found in 42 countries.
52	Every Apatosaurus fossil here comes from the United States.
57	6 of the 7 Heterodontosaurus fossils come from South Africa. The rest come from Mexico.
70	Deltadromeus has been found in three countries.
79	Saurornitholestes has been found in five countries.
81	Doedicurus has been found in three countries.
82	10 of the 12 Valdosaurus fossils come from the United Kingdom. The rest come from Spain.
115	Dickinsonia has been found in six countries.
116	Iguanodon has been found in ten countries.
122	22 of the 23 Telmatosaurus fossils come from Romania. The rest come from France.
123	Trilobita has been found in 24 countries.
125	Ichthyosaurus has been found in 12 countries.
133	41 of the 44 Zalmoxes fossils come from Romania. The rest come from Austria.
136	Every Anchiceratops fossil here comes from Canada.
139	Every Meganeura fossil here comes from France.
141	Megalosaurus has been found in nine countries.
142	Ouranosaurus has been found in four countries.
144	Every Lambeosaurus fossil here comes from Canada.
152	Every Omeisaurus fossil here comes from China.
154	18 of the 19 Barosaurus fossils come from the United States. The rest come from Zimbabwe.
159	5 of the 6 Prenocephale fossils come from Mongolia. The rest come from the United States.
161	Every Sinosaurus fossil here comes from China.
168	Psittacosaurus has been found in four countries.
169	Glyptodon has been found in 17 countries.
181	Every Kwanasaurus fossil here comes from the United States.
185	Helicoprion has been found in eight countries.
190	Hesperornis has been found in four countries.

How long they lasted

No.	Fact
2	Utahceratops spans 11 million years of rock.
6	Anchisaurus spans 8.5 million years of rock.
7	Anomalocaris spans 5.6 million years of rock.
12	Galeamopus spans 12 million years of rock.
16	Diplocaulus spans 8.9 million years of rock.
28	Kwanasaurus spans 26 million years of rock.
29	Velociraptor spans 11 million years of rock.
30	Torosaurus spans 6.2 million years of rock.
33	Massospondylus spans 8.5 million years of rock.
34	Smilodon spans 0.1 million years of rock.
43	Doedicurus spans 0.1 million years of rock.
49	Ornithomimus spans 6.2 million years of rock.
51	Gorgosaurus spans 11 million years of rock.
63	Yunnanosaurus spans 6.6 million years of rock.
71	Giraffatitan spans 6.1 million years of rock.
74	Prenocephale spans 6.2 million years of rock.
76	Daspletosaurus spans 11 million years of rock.
84	Brachylophosaurus spans 11 million years of rock.
87	Parasaurolophus spans 11 million years of rock.
90	Dromaeosaurus spans 11 million years of rock.
92	7 of these animals lived in the Late Triassic.
94	Corythosaurus spans 11 million years of rock.
100	Bactrosaurus spans 11 million years of rock.
105	Masiakasaurus spans 6.2 million years of rock.
107	Hypsilophodon spans 4.4 million years of rock.
111	Megapnosaurus spans 8.5 million years of rock.
118	Deltadromeus spans 6.6 million years of rock.
120	Zalmoxes spans 6.2 million years of rock.
126	Herrerasaurus spans 9.7 million years of rock.
148	Allosaurus spans 12 million years of rock.
151	Segnosaurus spans 17 million years of rock.
160	Leptoceratops spans 6.2 million years of rock.
167	Mammuthus spans 0.1 million years of rock.
171	Hesperosaurus spans 5.6 million years of rock.
175	Stenonychosaurus spans 11 million years of rock.
182	Barosaurus spans 12 million years of rock.
183	Coelophysis spans 22 million years of rock.
191	Kentrosaurus spans 6.1 million years of rock.
192	Thecodontosaurus spans 4.3 million years of rock.
195	Omeisaurus spans 6.7 million years of rock.

Not dinosaurs

No.	Fact
38	Ichthyosaurus is not a dinosaur.
40	Trilobita is not a dinosaur. It was gone 250 million years before the oldest dinosaur here.
48	Rhamphorhynchus is not a dinosaur.
53	Pteranodon is not a dinosaur.
58	Mammuthus is not a dinosaur.
65	Macrauchenia is not a dinosaur.
68	Anomalocaris is not a dinosaur. It was gone 273 million years before the oldest dinosaur here.
73	Meganeura is not a dinosaur. It was gone 62 million years before the oldest dinosaur here.
75	Liopleurodon is not a dinosaur.
80	Smilodon is not a dinosaur.
103	Opabinia is not a dinosaur. It was gone 268 million years before the oldest dinosaur here.
106	Elasmosaurus is not a dinosaur.
119	Basilosaurus is not a dinosaur.
129	Helicoprion is not a dinosaur. It was gone 30 million years before the oldest dinosaur here.
132	Paraceratherium is not a dinosaur.
149	Doedicurus is not a dinosaur.
158	Arthropleura is not a dinosaur. It was gone 73 million years before the oldest dinosaur here.
173	Dickinsonia is not a dinosaur. It was gone 302 million years before the oldest dinosaur here.
174	Dunkleosteus is not a dinosaur. It was gone 122 million years before the oldest dinosaur here.
178	Glyptodon is not a dinosaur.
189	Dimetrodon is not a dinosaur. It was gone 37 million years before the oldest dinosaur here.
196	Diplocaulus is not a dinosaur. It was gone 37 million years before the oldest dinosaur here.
198	Pterodactylus is not a dinosaur.

How far apart

No.	Fact
1	Torosaurus and Zalmoxes could have met.
20	Daspletosaurus and Ichthyornis could have met.
23	Bagaceratops and Utahceratops could have met.
25	Corythosaurus and Rhabdodon could have met.
31	Microraptor and Ouranosaurus could have met.
32	Daspletosaurus and Zalmoxes could have met.
35	Chirostenotes and Daspletosaurus could have met.
45	Gorgosaurus and Utahceratops could have met.
50	Bactrosaurus and Velociraptor could have met.
55	Centrosaurus and Prosaurolophus could have met.
56	Hadrosaurus and Neuquensaurus could have met.
60	Ichthyornis and Ornithomimus could have met.
61	Neuquensaurus and Styracosaurus could have met.
64	Rapetosaurus and Telmatosaurus could have met.
77	Melanorosaurus and Syntarsus could have met.
78	Centrosaurus and Segnosaurus could have met.
83	More time separated Dickinsonia from Pachyrhinosaurus (467 million years) than separates Pachyrhinosaurus from you (66 million).
93	Baptornis and Rhabdodon could have met.
95	Baptornis and Prenocephale could have met.
98	Daspletosaurus and Parasaurolophus could have met.
99	Limaysaurus and Psittacosaurus could have met.
110	Chirostenotes and Segnosaurus could have met.
114	Bagaceratops and Lambeosaurus could have met.
124	Deinocheirus and Saurornitholestes could have met.
130	Lambeosaurus and Tyrannosaurus could have met.
131	Pectinodon and Triceratops could have met.
134	Deinocheirus and Hesperornis could have met.
137	Ankylosaurus and Lambeosaurus could have met.
140	Euoplocephalus and Hadrosaurus could have met.
147	Camarasaurus and Stegosaurus could have met.
155	Ichthyornis and Telmatosaurus could have met.
162	Deinocheirus and Lambeosaurus could have met.
163	Lufengosaurus and Syntarsus could have met.
164	Baptornis and Corythosaurus could have met.
165	Camptosaurus and Dicraeosaurus could have met.
176	Isisaurus and Rapetosaurus could have met.
193	Bactrosaurus and Stenonychosaurus could have met.
197	Carcharodontosaurus and Eolambia could have met.
199	Apatosaurus and Diplodocus could have met.
200	Baptornis and Ornithomimus could have met.

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