Lucas Formation
47 distinct taxa, from 75 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.
Michigan, Ohio · US
32 taxa · 45 fossils · 393–388 MyaFiled under the Detroit River Group. Members recorded: Anderdon Limestone, Horner.
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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
- Murchisonia anderdoniae
- Bicarina petilitornata
- Crenulazona angulata
- Elasmonema corrugata
- Mesocoelia obstipisutura
- Murchisonia gracilicrista
- Murchisonia sibleyensis
- Nodonema granulatum
- Palaeozygopleura joani
- Palaeozygopleura sibleyensis
- Ptychomphalina lucina
- Serpulospira diversiformis
- Acanthonema holopiforme
- Acanthonema laxa
- Bellerophon stummi
- Cerithioides incomptum
- Cylindrophyllum
- Euryzone latitornata
- Euryzone pharkidopyndax
- Hippocardia monroica
- Hormotomina penduliobesa
- Microdoma tricarinatus
- Murchisonia akidota
- Murchisonia deludisubzona
- Murchisonia subcarinata
- Omphalocirrus
- Pagodea falcatinoda
- Panenka canadensis
- Prosserella
- Tropidodiscus compticarinatus
- Tropidodiscus vesculilineatus
- Turbonitella trunculinoda
Ontario · CA
26 taxa · 30 fossils · 393–388 MyaFiled under the Detroit River Group. Members recorded: Anderdon Limestone.
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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
- Bicarina petilitornata
- Crenulazona angulata
- Serpulospira diversiformis
- Tylozone commensurata
- Cerithioides incomptum
- Copidocatomus collarus
- Ehlersina abditinoda
- Ehlersina paucinodosa
- Euryzone
- Hippocardia monroica
- Hormotomina penduliobesa
- Murchisonia akidota
- Murchisonia anderdoniae
- Murchisonia sibleyensis
- Naticopsis opimavoluta
- Naticopsis pegmihumerosa
- Naticopsis planifrons
- Nodonema granulatum
- Omphalotrochus
- Prosserella lucasi
- Scalaetrochus fragosus
- Stenoloron fasciata
- Tropidodiscus cultricarinatus
- Turbonitella trunculinoda
- Tylozone turricula
- Zalozone lacunata
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.