Road River Formation
282 distinct taxa, from 697 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, Northwest Territories and Yukon, Yukon Territory · CA
264 taxa · 551 fossils · 497–411 MyaMembers recorded: Upper Beds.
Macrostrat dates this rock 504–387 Ma. Macrostrat’s own record
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38 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
- Monograptus
- Orthograptus
- Climacograptus
- Atrypa
- Dicellograptus
- Cortezorthis
- Aesopomum
- Bohemograptus bohemicus
- Brachiopoda
- Glassia
- Gypidula
- Monograptus yukonensis
- Spinatrypa
- Styliolina
- Tentaculites
- Ambocoelia
- Cryptolithus
- Diplograptus
- Latonotoechia
- Phragmostrophia
- Retiolites
- Semitubina yukonensis
- Skenidioides
- Stenoloron (Stenoloron) boucoti
- Thliborhynchia
- Ampyxina
- Anastrophia (Grayina) magnifica
- Biconostrophia
- Cryptolithoides
- Dendrograptus
- Dicranograptus
- Dolerorthis
- Glyptograptus
- Howellella
- Leptagonia
- Linograptus
- Mesodouvillina
- Oktavites spiralis
- Pseudomitchellia macqueeni
- Reticulariopsis
The 40 most often recorded, of 264.
Alaska · US
46 taxa · 146 fossils · 468–423 MyaMacrostrat dates this rock 504–387 Ma. Macrostrat’s own record
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6 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
- Climacograptus
- Monograptus
- Didymograptus
- Glyptograptus
- Orthograptus
- Glossograptus
- Pseudoclimacograptus scharenbergi
- Caryocaris
- Linograptus
- Dicellograptus
- Diplograptus
- Amplexograptus
- Cryptograptus tricornis
- Hustedograptus teretiusculus
- Pristiograptus dubius
- Reteograptus geinitzianus
- Bohemograptus bohemicus
- Corynoides
- Corynoides tricornis
- Cryptograptus
- Isograptus
- Monograptus yukonensis
- Ozarkodina
- Pristiograptus tumescens
- Cryptograptus schaeferi
- Dicellograptus caduceus
- Dicellograptus elegans
- Dicranograptus
- Dimorphograptus
- Diversograptus
- Glossograptus hincksii
- Lituigraptus convolutus
- Metaclimacograptus hughesi
- Monograptus priodon
- Nemagraptus
- Nemagraptus gracilis
- Normalograptus normalis
- Orthograptus quadrimucronatus
- Pristiograptus praedubius
- Pseudoclimacograptus
The 40 most often recorded, of 46.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.