Oppeliinae

	Oppeliinae Oppeliinae is a subfamily within the Oppeliidae, a family of Jurassic ammonites characterized by forms that are mainly oxyconic, compressed with sharp venters, in the adult and with keeled inner whorls. Sutures are complex, consisting of a long series of evenly graded lobes and saddles with finely frilled endings.Treatise on Invertebrate Paleontology Part L ''L274'',(Ammonoidea) The Oppeliinae gave rise to the Hecticoceratinae in the early Bathonian stage, near the middle of their range and to the Taramelliceratinae, in the late Callovian, near the end of their tange, which in turn gave rise to the Streblitinae in the early Kimmeridgian and to the Haploceratidae in the late Kimmeridgian.Classification of Jurassic Ammonitina, D.T. Donovan, ''et al.'' Systematics Assoc no 18 Distribution is worldwide, from the Middle Jurassic, except for Boreal regions. List of genera The Oppeliinae includes the following genera, listed in order of appearance. :'' Bradfordia'' :''Oppelia'' :''O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Oppeliidae Oppeliidae are compressed to oxyconic, sculptured Haploceratoidea, either unkeeled, unicarinate, bicarinate, or tricarinate; with sutures in great variety, but ribbing usually more or less falcoid or falcate. The Oppeliidae is the principal family of the Haploceratoidea, with the longest duration, extending from the Middle Jurassic (Bajocian) to the Upper Cretaceous (Cenomanian) Their derivation is from the Hildoceratoidea. Subfamilies Nine subfamilies are recognized, the first eight of which are included in the earlier Treatise, Part L. They are the: :Oppeliinae :Hecticoceratinae :Distchoceratinae :Teramelliceratinae :Phlycticeratinae :Streblitinae :Mazapilitinae :Aconeceratinae :Binneyitinae The Binneyitinae was added by Donovan ''et al'', 1981, transferred from the Stephanoceratoidea. References * D.T Donavan, J.H. Callomon, and M.K Howarth. 1981. Classification of the Jurassic Ammonitina. In The Ammonoidea. M.R. House and J.R. Senior, eds. Systematics Assoc. Pub Acad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Hecticoceratinae Hecticoceratinae is a subfamily of oppeliids from the Middle and Upper Jurassic typically with strong falcoid or falcate ribbing that covers whorl sides completely. Venters are usually keeled and may be tricarinate.Treatise on Invertebrate Paleontology Part L, ''L276'' (Ammonoidea) The Hecticocerainae, which has its origin in the Oppeliinae, give rise to the Distichoceratinae near the beginning of the Middle Jurassic Callovian, and to the Glochiceratinae early in the Upper Jurassic Oxfordian.Classification of Jurassic Ammonitina, D.T. Donovan, et al., Systematics Assoc., 1981 Neither apparently gave rise to any subsequent groups. Genera ''Hecticoceras'', ''Brightia'', ''Eochetoceras'', ''Hecticoceratoides'', ''Lunuloceras'', ''Kheraites'', ''Proheticoceras'', ''Pseudobrightia'', and ''Pseudobrightia'', listed as separate genera in the Treatise are regarded as subgenera of ''Hecticoceras ''Hecticoceras'' is an ammonite genus belonging to the haploceratoid family Oppeliid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Streblitinae Streblitinae is a subfamily of Upper Jurassic and Lower Cretaceous ammonites within the family Oppeliidae Oppeliidae are compressed to oxyconic, sculptured Haploceratoidea, either unkeeled, unicarinate, bicarinate, or tricarinate; with sutures in great variety, but ribbing usually more or less falcoid or falcate. The Oppeliidae is the principal famil ... characterized by compressed, involute shells; typically oxycones with complex sutures. Includes '' Streblites'', '' Pseudoppelia'', and '' Substreblites''. Derivation is from the Taramelliceratinae. May have given rise to the Aconiceratinade. References W.J. Arkell ''et al.'', 1957 Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L. Geological Society of America and University of Kansas Press. D.T. Donovan, J.H. Callomon, and M.K. Howarth, 1981. Classification of the Jurassic Ammonitina. The Systematics Association Special Volume no. 18. The Ammonoidea. Academic Press. Oppeliidae Late Jurassic first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Haploceratidae The Haploceratidae is the type family of the Haploceratoidea, a superfamily in the ammonitina; which according to Donovan ''et al.'' (1981) can be derived from the Taramelliceratinae, a subfamily of the Oppeliidae. Haploceratids, (Haploceratidae) are typically small, smooth and somewhat featureless ammonites, as described by Arkell ''et al'', without ribbing or ventral keels and moderately undifferentiated sutures; that range from the Late Kimmeridgian to the Hauterivian The Hauterivian is, in the geologic timescale, an age in the Early Cretaceous Epoch or a stage in the Lower Cretaceous Series. It spans the time between 132.9 ± 2 Ma and 129.4 ± 1.5 Ma (million years ago). The Hauterivian is preceded by the Va ..., crossing from the Jurassic into the Cretaceous. References Arkell ''et al.'', 1957 Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology Part L. Geol Society of America and Univ Kansas Press R.C Moore (ed) D.T Donavan, J.H. Callomon, and M.K Howarth. 1981. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Bradfordia ''Bradfordia'' is a moderately involute to involute genus included in the ammonoid cephalopod family Oppeliidae, coiled so that the outer whorl encloses most, or much, of the previous, but with a small umbilicus exposing inner whorls. The shell is compressed, whorl height much greater than width, extending well out from the contact with the adjacent inner whorl. Outer flanks are finely ribbed and the rounded venter is smooth. ''Bradfordia'' lived during the Middle Jurassic The Middle Jurassic is the second epoch of the Jurassic Period. It lasted from about 174.1 to 163.5 million years ago. Fossils of land-dwelling animals, such as dinosaurs, from the Middle Jurassic are relatively rare, but geological formations co .... References * Treatise on Invertebrate Paleontology, Part L; Ch. Mesozoic Ammonoidea. Geological Soc of America and U Kansas Press, R.C Moore (ed) Ammonitida genera Oppeliidae Jurassic ammonites Ammonites of Europe {{ammonitina-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Oppelia ''Oppelia'' is a haploceratoid ammonite and type genus for the Oppeliidae that lived during the Middle Jurassic The Middle Jurassic is the second epoch of the Jurassic Period. It lasted from about 174.1 to 163.5 million years ago. Fossils of land-dwelling animals, such as dinosaurs, from the Middle Jurassic are relatively rare, but geological formations co .... Shells of ''Oppelia'' are involute with a small to moderate size umbilicus, bluntly rounded to sharp venter, and deeply impressed dorsum. Sides are generally smooth but may be variously ribbed on the outer flanks. Similar and related genera include '' Oxycerites'' and '' Oecotraustes''. Distribution Jurassic of Germany, Greenland, India, Italy, Madagascar, Mexico, Poland, Spain and the United Kingdom References Ammonitida genera Oppeliidae Jurassic ammonites Ammonites of Europe {{ammonitina-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Oxycerites ''Oxycerites'' is an extinct ammonoid cephalopod belonging to the haploceratoid family, Oppeliidae Oppeliidae are compressed to oxyconic, sculptured Haploceratoidea, either unkeeled, unicarinate, bicarinate, or tricarinate; with sutures in great variety, but ribbing usually more or less falcoid or falcate. The Oppeliidae is the principal famil ..., that lived during the Middle Jurassic. Shells of ''Oxycerites'' are involute, compressed and generally smooth with a sharply rounded venter on the outer rim, deeply impressed dorsum on the inner rim, and a small umbilicus. The living chamber takes up slightly more than half a whorl. ''Oxycerites'' grew to a diameter of at least 17.5 cm, about 7 inches. '' Oppelia'' and '' Oecotraustes'' are similar and closely related forms. ''Oppelia'' is smoother, ''Oecotraustes'' more strongly ribbed Distribution Jurassic of Argentina, France, Germany, Iran, Madagascar, Russia, Saudi Arabia and the United Kingdom References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Paralcidia (ammonite) ''Paralcidia'' is a genus of moths in the family Geometridae The geometer moths are moths belonging to the family Geometridae of the insect order Lepidoptera, the moths and butterflies. Their scientific name derives from the Ancient Greek ''geo'' γεω (derivative form of or "the earth"), and ''met .... References * Geometridae {{Geometridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Magharina ''Magharina'' small upper Bajocian genus of ammonite (order Ammonitida) with a small smooth involute shell having a single keel along the venter and extremely simple sutures. Found in Egypt Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Mediter .... The type species is ''M. magharensis''. References * Late Bajocian Ammonites from the Cook Inlet Region, Alaska. USGS Ammonitida genera Oppeliidae Jurassic ammonites Bajocian life {{ammonitina-stub ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]