La Chilca Formation
36 distinct taxa, from 72 fossil occurrences the Paleobiology Database records under this name, spanning 443–439 Mya.
San Juan · AR
36 taxa · 72 fossils · 443–439 MyaLoading coastlines…
6 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
- Eostropheodonta chilcaensis
- Cordatomyonia umangoensis
- Anabaia
- Homoeospira
- Dalmanella testudinaria
- Heterorthella precordillerana
- Rostricellula
- Dedzetina
- Eostropheodonta chilcaensis parvula
- Leptaena
- Bivalvia
- Bryozoa
- Clinoclimacograptus
- Crinoidea
- Dalmanella
- Dapsilodus obliquicostatus
- Distomodus
- Distomodus kentuckyensis
- Dolerorthis plicata
- Eoplectodonta (Eoplectodonta) duplicata
- Fardenia
- Gastropoda
- Giraldiellidae
- Glyptorthis vidari
- Hindella crassa
- Leangella (Leangella) america
- Normalograptus normalis
- Normalograptus rectangularis
- Ozarkodina oldhamensis
- Panderodus
- Paraclimacograptus innotatus
- Rafinesquina
- Rafinesquina relicua
- Stegerhynchus pusillum
- Tentaculitida
- Trilobita
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.