Lower Road River Formation
71 distinct taxa, from 230 fossil occurrences the Paleobiology Database records under this name.
The Paleobiology Database files this name in 2 countries. That can be one body of rock crossing a border, or two rocks that happen to share a name. The database does not say which, so nothing below is added across them.
Yukon, Northwest Territories · CA
57 taxa · 207 fossils · 487–457 MyaFiled under the Road River Group.
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5 distinct localities, where the rock is now rather than where it was laid down. Tectonics draws the world it belonged to.
When
What has been found
- Paradelograptus
- Clonograptus
- Kiaerograptus
- Paratetragraptus approximatus
- Adelograptus brevibrachiatus
- Didymograptus
- Didymograptus extensus
- Araneograptus
- Tshallograptus fruticosus
- Adelograptus antiquus
- Aorograptus victoriae
- Didymograptus latus
- Tetragraptus
- Climacograptus
- Pendeograptus pendens
- Didymograptus (Expansograptus) validus
- Etagraptus
- Kiaerograptus bulmani
- Staurograptus dichotomus
- Tetragraptus amii
- Tetragraptus quadribrachiatus
- Anisograptus matanensis
- Didymograptus ensjoensis
- Goniograptus macer
- Tetragraptus bigsbyi
- Bryograptus
- Dichograptus maccoyi
- Didymograptellus nitidus
- Expansograptus
- Goniograptus
- Graptolithus octobrachiatus
- Hunnegraptus copiosus
- Phyllograptus
- Acrograptus gracilis
- Ancoragraptus
- Brachiopoda
- Chigraptus supinus
- Clonograptus flexilis
- Dichograpsus multiplex
- Didymograptellus bifidus
The 40 most often recorded, of 57.
Alaska · US
18 taxa · 23 fossils · 477–458 MyaFiled under the Road River Group.
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2 distinct localities, where the rock is now rather than where it was laid down. Tectonics draws the world it belonged to.
When
What has been found
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.