|
Ozan Formation
The Ozan Formation is a Formation (geology), geologic formation in Arkansas, Oklahoma and Texas. It preserves fossils dating back to the Cretaceous Period (geology), period. Paleofauna Ostracods *''Alatacythere'' :''A. ponderosana'' *''Amphicytherur'' :''A. dubia'' *''Bairdoppilata'' :''B. rotunda'' *''Brachycythere'' :''B. ledaforma'' :''B. rhomboidalis'' :''B. sphenoides'' *''Bythocypris'' :''B. windhami'' *''Clithrocytheridea'' :''C. fabaformis'' *''Cytheris'' :''C. bicornis'' :''C. caudata'' :''C. communis'' :''C. costatana'' :''C. dallasensis'' :''C. hannai'' :''C. paraustinensis'' :''C. plummeri'' :''C. spoori'' :''C. verricula'' *''Cytherella'' :''C. austinensis'' *''Cytherelloidea'' :''C. crafti'' :''C. ozanana'' :''C. spiralia'' :''C. tollettensis'' *''Cytheropteron'' :''C. blakei'' *''Haplocytheridea'' :''H. bruceclarki'' :''H. councilli'' :''H. globosa'' :''H. insolita'' :''H. micropunctata'' :''H. plummeri'' *''Krithe'' :''K. cushmani'' :''K. postporjecta'' *''Loxocon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammonite
Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i.e., octopuses, squid and cuttlefish) than they are to shelled nautiloids such as the living ''Nautilus'' species. The earliest ammonites appeared during the Devonian, with the last species vanishing during the Cretaceous–Paleogene extinction event. Ammonites are excellent index fossils, and linking the rock layer in which a particular species or genus is found to specific geologic time periods is often possible. Their fossil shells usually take the form of planispirals, although some helically spiraled and nonspiraled forms (known as heteromorphs) have been found. The name "ammonite", from which the scientific term is derived, was inspired by the spiral shape of their fossilized shells, which somewhat resemble tightly coiled rams' horns. Pliny the Elder ( 79 AD near Pomp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cytherella
''Cytherella'' is a genus of ostracod, seed shrimp in the family Cytherellidae. Species The World Register of Marine Species lists the following species as accepted in the genus ''Cytherella''. *''Cytherella abyssorum'' *''Cytherella adenensis'' *''Cytherella africana'' *''Cytherella altacaelateralis'' *''Cytherella alvearium'' *''Cytherella areolata'' *''Cytherella arostrata'' *''Cytherella ascia'' *''Cytherella ballangei'' *''Cytherella banda'' *''Cytherella bathyalis'' *''Cytherella beibuwanensis'' *''Cytherella bensoni'' *''Cytherella bermaguiensis'' *''Cytherella bermudensis'' *''Cytherella bigemina'' *''Cytherella bipartita'' *''Cytherella bissoni'' *''Cytherella bradyi'' *''Cytherella brettingi'' *''Cytherella caepae'' *''Cytherella calabra'' *''Cytherella carmela'' *''Cytherella centrocompressa'' *''Cytherella cercinata'' *''Cytherella charmant'' *''Cytherella chipolensis'' *''Cytherella cincta'' *''Cytherella circumpunctata'' *''Cytherella ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
