Ahlen Formation
146 distinct taxa, from 385 fossil occurrences the Paleobiology Database records under this name, spanning 84–72 Mya.
Recorded under country code DE
146 taxa · 385 fossils · 84–72 MyaMembers recorded: Beckum, Vorhelm, Stromberg, Vorhelmer schichten.
Macrostrat dates this rock 84–72 Ma. Macrostrat’s own record
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12 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
- Hoploscaphites
- Pachydiscus
- Belemnitella mucronata
- Echinocorys ovatus
- Cataceramus balticus
- Micraster glyphus
- Baculites vertebralis
- Eutrephoceras darupense
- Pecten (Syncyclonema) membranaceus
- Berycopsis germanus
- Phaenodesmia
- Sardinioides monasterii
- Cassianella gryphaeata
- Istieus grandis
- Serpula
- Amphithelion (Amphithelion) macrommata
- Astarte similis
- Aulaxinia sulcifera
- Baculites anceps
- Hoplitoplacenticeras vari
- Ostrea
- Pachydiscus (Pachydiscus) haldemsis
- Phylloceras
- Polyopesia angustata
- Porosphaera globularis
- Rhyncholithes
- Actinocamax
- Aphrocallistes alveolites
- Bourgueticrinus ellipticus
- Callopegma acaule
- Echidnocephalus tenuicaudus
- Leptophragma murchisoni
- Pachydiscus subrobustus
- Parasmilia centralis
- Penaeus tenuicauda
- Sardinius cordieri
- Serpula subtorquata
- Stichophyma multiformis
- Terebratulina rigida
- Ventriculites radiatus
The 40 most often recorded, of 146.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.