Chispa Summit Formation
34 distinct taxa, from 39 fossil occurrences the Paleobiology Database records under this name, spanning 101–90 Mya.
Texas · US
34 taxa · 39 fossils · 101–90 MyaMacrostrat places this rock in the Eagle Ford Group. Macrostrat’s own record
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4 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
- Tarrantoceras sellardsi
- Collignoniceras woollgari
- Prionocyclus hyatti
- Spathites coahuilaensis
- Acompsoceras
- Allocrioceras larvatum
- Calycoceras (Gentoniceras) leonense
- Cunningtoniceras johnsonanum
- Euomphaloceras septemseriatum
- Fagesia catinus
- Inoceramus arvanus
- Kamerunoceras calvertense
- Kamerunoceras eschii
- Mammites powelli
- Metoicoceras geslinianum
- Mytiloides
- Neocardioceras juddii
- Ostrea beloiti
- Prionocyclites mite
- Prionocyclus albinus
- Pseudaspidoceras
- Pseudocalycoceras angolaense
- Quitmaniceras reaseri
- Rhamphidoceras saxatilis
- Sciponoceras gracile
- Tarrantoceras
- Thomasites adkinsi
- Thomelites
- Turrilites acutus
- Vascoceras cauvini
- Vascoceras proprium
- Vascoceras silvanense
- Worthoceras
- Wrightoceras munieri
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.