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FossilRange

Rankings

Dinosaur rankings

How the 99 genera compare on fossil records, spread across the world and length of their stage ranges.

Most fossil records

#	Genus	Records
1	Triceratops	166
2	Saurornitholestes	148
3	Allosaurus	147
4	Camarasaurus	138
5	Iguanodon	133
6	Troodon	103
7	Stegosaurus	86
8	Edmontosaurus	85
9	Tyrannosaurus	85
10	Tenontosaurus	83
11	Massospondylus	80
12	Psittacosaurus	70
13	Apatosaurus	67
14	Diplodocus	66
15	Megalosaurus	60

Most collections

#	Genus	Collections
1	Triceratops	161
2	Saurornitholestes	140
3	Allosaurus	132
4	Camarasaurus	124
5	Iguanodon	124
6	Troodon	100
7	Edmontosaurus	85
8	Tenontosaurus	82
9	Tyrannosaurus	82
10	Massospondylus	78
11	Stegosaurus	76
12	Diplodocus	64
13	Apatosaurus	62
14	Psittacosaurus	62
15	Megalosaurus	58

Found in most countries

#	Genus	Countries
1	Iguanodon	10
2	Megalosaurus	9
3	Plateosaurus	8
4	Mantellisaurus	7
5	Carcharodontosaurus	6
6	Spinosaurus	6
7	Torvosaurus	6
8	Dacentrurus	5
9	Saurornitholestes	5
10	Thecodontosaurus	5
11	Alectrosaurus	4
12	Allosaurus	4
13	Baryonyx	4
14	Brachiosaurus	4
15	Camarasaurus	4

Longest stage ranges

#	Genus	Million years
1	Gryposaurus	127.4
2	Megalosaurus	55
3	Thecodontosaurus	54.3
4	Cetiosaurus	42.4
5	Coelurus	36
6	Carcharodontosaurus	27.5
7	Iguanodon	26.6
8	Psittacosaurus	25.3
9	Mamenchisaurus	20.3
10	Neuquensaurus	20.3
11	Omeisaurus	20.3
12	Mantellisaurus	19.4
13	Polacanthus	18.4
14	Valdosaurus	18.4
15	Albertosaurus	17.6

Oldest genera

#	Genus	First stage base (Ma)
1	Thecodontosaurus	247.2
2	Coelophysis	205.7
3	Plateosaurus	205.7
4	Lufengosaurus	201.4
5	Sinosaurus	201.4
6	Yunnanosaurus	201.4
7	Dilophosaurus	199.5
8	Gryposaurus	199.5
9	Massospondylus	199.5
10	Scelidosaurus	199.5
11	Scutellosaurus	199.5
12	Cetiosaurus	168.2
13	Megalosaurus	168.2
14	Mamenchisaurus	165.3
15	Omeisaurus	165.3