Williamson Formation
45 distinct taxa, from 128 fossil occurrences the Paleobiology Database records under this name, spanning 439–433 Mya.
New York · US
45 taxa · 128 fossils · 439–433 MyaFiled under the Clinton Group.
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5 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
- Mastigobolbina
- Monograptus
- Dictyonema
- Atrypa reticularis
- Beyrichia
- Eoplectodonta (Eoplectodonta) transversalis
- Leptaena rhomboidalis
- Retiolites geinitzianus
- Calymene
- Chonetes
- Cyrtia
- Dibolbina
- Eospirifer radiatus
- Skenidium
- Ctenodonta
- Dalmanella
- Dalmanites
- Dicoelosia
- Enterolasma
- Atrypina disparilis
- Craniops
- Eocoelia sulcata
- Murchisonia subulata
- Orthis
- Orthoceras
- Rhynchonella bidens
- Schuchertella
- Strophochonetes cornutus
- Strophodonta corrugata
- Buthotrephis gracilis
- Camarotoechia
- Chaetetes
- Clorinda
- Coelospira
- Conularia niagarensis
- Cyclonema varicosum
- Dolerorthis flabellites
- Eospinatrypa nodostriata
- Hormotoma
- Leptodesma
The 40 most often recorded, of 45.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.