Upper Chalk Formation
91 distinct taxa, from 186 fossil occurrences the Paleobiology Database records under this name, spanning 101–66 Mya.
England, East Sussex, Norfolk, Greater London · UK
91 taxa · 186 fossils · 101–66 MyaFiled under the Chalk Group. Members recorded: Sponge Beds, Chalk Rock, General Beds.
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53 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
- Woodwardirhynchia cuneiformis
- Orbirhynchia reedensis
- Cretirhynchia (Lewesirhynchia) exsculpta
- Cretirhynchia minor
- Cretirhynchia (Homaletarhynchia) arcuata
- Cretirhynchia lenticularis
- Orbirhynchia dispansa
- Cretirhynchia subplicata
- Cretirhynchia plicatilis
- Cretirhynchia (Cretirhynchia) norvicensis
- Cretirhynchia (Harmignirhynchia) intermedia
- Rhizopoterion
- Eurete formosum
- Orbirhynchia pisiformis
- Virgiscalpellum darwinianum
- Woodwardirhynchia woodwardi
- Coscinopora infundibuliformis
- Cretirhynchia (Homaletarhynchia) lentiformis
- Eurete
- Farrea oakleyi
- Guettardiscyphia stellata
- Nostoceras (Eubostrychoceras) saxonicum
- Ophiura serrata
- Orbirhynchia granum
- Plesiosauria
- Pollicipes filosus
- Scaphites diana
- Septatoechia magna
- Sporadoscinia venosa
- Yezoites bladenensis
- Acanthoraphis intertextus
- Aphrocallistes alveolites
- Becksia feuerwehri
- Callicylix (Cyclostigma) acinosa
- Callicylix (Cyclostigma) maeandrina
- Cliona cretacea
- Cliona mantelli
- Coeloptychium agaricoides
- Craticularia
- Cretirhynchia
The 40 most often recorded, of 91.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.