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OONOCERAS

Oonoceras

Extinct genus of nautiloids

Oonoceras is an extinct genus of fossil cephalopods included in the nautiloid order Oncocerida and the family Oncoceratidae from the Middle Ordovician

Oonoceras

Danaoceras

Genus of molluscs

genus of the Polyelasmoceratidae and is possibly derived from either Oonoceras or Oocerina of the Oncoceratidae based on similarities of the siphuncle

Danaoceras

Slender Oncoceratidae

Group of nautiloids

Richardsonoceras, R. simplex, is from the Middle Ordovician of Ontario. Oonoceras (K288), from the Middle Ordovician to Middle Silurian of Europe and North

Slender Oncoceratidae

Slender_Oncoceratidae

Oncoceratidae

Extinct family of nautiloids

Siluro-devonian Nothoceratidae through Oonoceras and to the largely Devonian Polyelasmoceratidae through either Oonoceras or Oocerina.(Sweet 1964) The Oncoceratidae

Oncoceratidae

Oocerina

Genus of molluscs

siphuncle is nummuloidal, containing actinosiphonate deposits within. Oonoceras is similar except for having a generally stronger curvature and a simpler

Oocerina

Perimecoceras

Extinct genus of molluscs

Europe. Perimecoceras is similar in general form to the oncoceratid genus Oonoceras from which it may have been derived, but differs in having a longer body

Perimecoceras

Brevicoceratidae

Extinct family of molluscs

subtriangular transverse sections. The Brevicoceratidae are derived from Oonoceras (Oncoceratidae) and range from the mid-Silurian to the Upper Devonian

Brevicoceratidae

Nothoceratidae

Extinct family of molluscs

Silurian of central Europe and which is similar in external form the Oonoceras from the Oncoceratidae. Blakeoceras Bolloceras Conostichoceras Cyrthoceratites

Nothoceratidae

Acleistoceratidae

Extinct family of molluscs

Oncoceras (Oncoceratidae) through Amphycertoceras, independently of the Oonoceras stock. The family is named for the genus Acleistoceras. All told some

Acleistoceratidae

Folkeslunda Limestone

Limestone and mudstone formation

situ O. regulare Öland In situ O. scabridum Södra Bäck, Öland In situ Oonoceras O. priscum Vistula River, Bydgoszcz Erratic block Phthanoncoceras P. ellipticum

Folkeslunda Limestone

Folkeslunda_Limestone

List of the prehistoric life of Indiana

†Odontopleura – tentative report †Oncoceras †Onychocrinus †Onychopterella †Oonoceras †Ornithoprion – type locality for genus †Orodus †Palmatolepis †Paolia

List of the prehistoric life of Indiana

List_of_the_prehistoric_life_of_Indiana

List of prehistoric nautiloid genera

†Ogygoceras †Ohioceras †Oligoceras †Oncoceras †Oneotoceras †Onyxites †Oocerina †Oonoceras †Ophidioceras †Ophioceras †Ophionautilus †Oratoceras †Ordosoceras †Ormoceras

List of prehistoric nautiloid genera

List_of_prehistoric_nautiloid_genera

List of the prehistoric life of Alaska

shumardiana – or unidentified related form †Oncagnostus †Oncagnostus tumidosus †Oonoceras †Orthoceras †Orthoceras anguliferas – or unidentified comparable form

List of the prehistoric life of Alaska

List_of_the_prehistoric_life_of_Alaska

List of the prehistoric life of Vermont

species †Onchonotopsis †Oneotodus †Oneotodus erectus †Oonoceras †Oonoceras lativentrum †Oonoceras perkinsi †Orthambonites †Orthambonites exfoliata †Orthambonites

List of the prehistoric life of Vermont

List_of_the_prehistoric_life_of_Vermont

List of the Paleozoic life of New York (state)

†Onoceras †Ontaria †Onychoplecia †Onychoplecia longirostris †Oonoceras †Oonoceras perkinsi †Oonoceras seelyi †Ophileta †Ophileta discus – type locality for species

List of the Paleozoic life of New York (state)

List_of_the_Paleozoic_life_of_New_York_(state)

List of the Paleozoic life of Indiana

†Onychopterella †Onychopterella kokomoensis †Oonoceras †Oonoceras fennemani †Oonoceras rejuvenatum †Oonoceras shideleri †Ophiletina †Ophiletina sublaxa †Opisthoptera

List of the Paleozoic life of Indiana

List_of_the_Paleozoic_life_of_Indiana

List of the prehistoric life of New York

†Obolus †Odontochile †Odontopleura †Olenellus †Olenoides †Oncoceras †Oonoceras †Ormoceras †Orthoceras †Oulodus †Ozarkodina †Ozarkodina confluens †Pachyphyllum

List of the prehistoric life of New York

List_of_the_prehistoric_life_of_New_York

List of the Paleozoic life of Alaska

†Onchonotopsis †Onchonotopsis occidentalis – type locality for species †Oonoceras †Opsiconidion †Orbiculoidea †Orecopia †Orecopia mccoyi – or unidentified

List of the Paleozoic life of Alaska

List_of_the_Paleozoic_life_of_Alaska