Heath Formation
188 distinct taxa, from 500 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.
Montana · US
161 taxa · 472 fossils · 335–323 MyaFiled under the Big Snowy Group. Members recorded: Bear Gulch, Bear Gulch Limestone.
Macrostrat places this rock in the Big Snowy Group, and dates it 331–323 Ma. Macrostrat’s own record
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18 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
- Fubarichthyiformes
- Composita
- Actinopterygii
- Wendyichthys dicksoni
- Dictyoclostus inflatus
- Spirifer
- Linoproductus
- Aesopichthys erinaceus
- Anthracospirifer curvilateralis
- Falcatus falcatus
- Harpagofututor volsellorhinus
- Leiorhynchus
- Paratarrasius hibbardi
- Cyranorhis bergeraci
- Discoserra pectinodon
- Girtyella
- Kalops monophrys
- Kalops diophrys
- Aviculopecten
- Tarrasiidae
- Beagiascus pulcherrimus
- Caridosuctor populosum
- Composita sulcata
- Cranaena circularis
- Gordoniconus beargulchensis
- Lineagruan judithi
- Ostracoda
- Petrocrania modesta
- Phanerosteon
- Phanerosteonoidei
- Productus (Diaphragmus) fasciculatus
- Wendyichthys lautreci
- Archisymplectes rhothon
- Buxtonia arizonensis
- Composita laevis
- Debeerius ellefseni
- Echinoconchus alternatus
- Lineagruan snowyi
- Martinia
- Neospirifer praenuntius
The 40 most often recorded, of 161.
Piura · PE
27 taxa · 28 fossils · 27–23 MyaLoading coastlines…
3 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
- Adrana
- Architectonica sullana
- Barbatia
- Bursa
- Chione (Chionopsis) posorjensis
- Chorus meroensis
- Chorus sula
- Clementia (Egesta) peruviana
- Costacallista mancorensis
- Crepidula
- Dosinia
- Ficus woodringi
- Hybolophus disenum
- Macoma meroensis
- Mactrellona tumbezia
- Mollusca
- Myrtea
- Peruluta mancorensis
- Pleurophopsis lithophagoides
- Pseudoliva parinasensis mancorensis
- Pseudophopsis peruviana
- Scapharca meroensis
- Tagelus
- Turritella caleta
- Turritella conquistadorana
- Turritella hubbardi
- Turritella meroensis
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.