Llewellyn Formation
54 distinct taxa, from 66 fossil occurrences the Paleobiology Database records under this name, spanning 323–299 Mya.
Pennsylvania · US
54 taxa · 66 fossils · 323–299 MyaMacrostrat dates this rock 312–299 Ma. Macrostrat’s own record
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9 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
- Pecopteris (Alethopteris)
- Atimoblatta curvipennis
- Euproops danae
- Fabreciella pennsylvanica
- Mylacris anthracophila
- Mylacris pennsylvanica
- Pecopteris
- Actinomylacris similis
- Amboneura klosei
- Aphthoroblattina fascigera
- Asemoblatta pennsylvanica
- Asterophyllites
- Caloneurella carbonaria
- Caloneurodea
- Cordaites
- Dieconeurites rigidus
- Hemimylacrella mammothi
- Kinklidoblatta lesquereuxi
- Lycopsida
- Mariopteris
- Mylacris angusta
- Mylacris lucifuga
- Mylacris ovalis
- Mylacris truncatula
- Necymylacris hadroptera
- Necymylacris heros
- Necymylacris lacoana
- Neomylacris major
- Neosimplicius medialis
- Neuropteris
- Orthomylacris alutacea
- Orthomylacris analis
- Orthomylacris cordiformis
- Orthomylacris mansfieldi
- Orthomylacris pauperata
- Orthomylacris pittstoniana
- Palaeotherates pennsylvanicus
- Parahaplophlebium longipennis
- Phthinomylacris medialis
- Phylloblatta indecisa
The 40 most often recorded, of 54.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.