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Euomphaloidea
Euomphaloidea, originally Euomphalacea, is an extinct superfamily of marine molluscs that lived from the Early Ordovician to the Late Cretaceous, included in the Gastropoda Moore R. C., Lalicker & Fischer (1952). ''Invertebrate Fossils''. McGraw-Hill publisher. but speculated as instead perhaps Monoplacophora. Description Euomphaloid shells are mostly discoidal and may be either orthostrophic (coils wrapped around an erect cone) or hyperstrophic (coils wrapped around an inverted cone); are widely umbilicate and commonly have a channel, presumed exhalent, within the angulation in the outer part of the upper whorl surface. The shell wall is relatively thick, with an external prismatic layer of calcite, which may be pigmented, and an internal layer of lamellar, but not nacreous, aragonite.(1960). ''Treatise on Invertebrate Paleontology. Part I, Gastropoda. Taxonomy As with almost all fossils, the taxonomic relations of and within the euophaloids can only be inferred from their rem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euomphalina
The Euomphalina comprise a major suborder of mainly Paleozoic archaeogastropods, shells of which are hyperstophic to depressed orthstrophic, commonly with an angulation at the outer upper whorl surface thought to be coincident with the exhalent channel; shell wall thick, outer layer calcitic, inner layers aragonitic but not nacreous; operculum calcareous and heavy. Their range is from the Upper Cambrian to the Triassic, and possibly as high as the Upper Cretaceous.J. Brooks Knight ''et al'' 1960. Systematic Descriptions (''of gastropods''). Treatise on Invertebrate Paleontology Part I, Mollusca 1.(1960) Suborder Macluritina pp I 184 - I 196. The suborder Euomphalina de Koninck 1881 is synonymous with Macluritina (Cox and Knight 1960). The suborder Euomphalina includes the extinct superfamilies Euomphaloidea, Macluritoidea, Ophiletoidea, and Platyceratoidea. Taxonomy J.B. Knight ''et al'' 1960, in the Treatise Part I recognize two superfamilies in the Euomphalina (or Macluri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omphalocirridae
Omphalocirridae is an extinct family of Paleozoic molluscs (gastropods?) with anisostrophically coiled shells of uncertain position (Gastropoda?) (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Taxonomy The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdés Á. & Warén A. 2005. ''Classification and nomenclator of gastropod families''. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. . ISSN 0076-2997. 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278 categorizes Omphalocirridae in the superfamilia Euomphaloidea Euomphaloidea, originally Euomphalacea, is an extinct superfamily of marine molluscs that lived from the Early Ordovician to the Late Cretaceous, included in the Gastropoda Moore R. C., Lalicker & Fischer (1952). ''Invertebrate Fossils''. McGraw ... within the Paleozoic molluscs with anisostrophically coiled s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lesueurillidae
Lesueurillidae is an extinct family of paleozoic molluscs (gastropods?) with anisostrophically coiled shells of uncertain position (Gastropoda?) (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Taxonomy The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdés Á. & Warén A. 2005. ''Classification and nomenclator of gastropod families''. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. . ISSN 0076-2997. 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278 categorizes Lesueurillidae in the superfamilia Euomphaloidea within the Paleozoic molluscs with anisostrophically coiled shells of uncertain position (Gastropoda?). This family has no subfamilies. Genera Genera in the family Lesueurillidae include''Lesueurillidae''. The Paleobiology Database The Paleobiology Database is an online resource for information on the distribut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omphalotrochidae
Omphalotrochidae is an extinct taxonomic family of Paleozoic molluscs (gastropods?) with anisostrophically coiled shells of uncertain position (Gastropoda?) (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Taxonomy The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdés Á. & Warén A. 2005. ''Classification and nomenclator of gastropod families''. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. . ISSN 0076-2997. 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278 places Omphalotrochidae in the superfamilia Euomphaloidea Euomphaloidea, originally Euomphalacea, is an extinct superfamily of marine molluscs that lived from the Early Ordovician to the Late Cretaceous, included in the Gastropoda Moore R. C., Lalicker & Fischer (1952). ''Invertebrate Fossils''. McGraw ... within the Paleozoic molluscs with anisostrophically c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helicotomidae
Helicotomidae is an extinct family of Paleozoic molluscs (gastropods?) with anisostrophically coiled shells of uncertain position (Gastropoda?) (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Taxonomy The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdés Á. & Warén A. 2005. ''Classification and nomenclator of gastropod families''. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. . ISSN 0076-2997. 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278 categorizes Helicotomidae in the superfamilia Euomphaloidea within the Paleozoic molluscs with anisostrophically coiled shells of uncertain position (Gastropoda?). This family has no subfamilies. Genera Genera in the family Helicotomidae include:''Helicotomidae''. The Paleobiology Database The Paleobiology Database is an online resource for information on the distribution ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anomphalidae
The Anomphalidae is an extinct family of fossil sea snails, marine gastropod mollusks. These are archaeogastropods which are included in the suborder Trochina. The Anomphalidae lived during the Paleozoic, from the Silurian to the Middle Permian. According to some authorities these snails belong instead to the Euomphalacea. Morphologic diagnosis Shells of the Anomphalidae are rounded, almost discoidal, low-spired trochospiral inform, possibly with a globular body whorl. The aperture is oval, without exhalent slit or crease. The umbilicus is narrow, open or closed. The inner shell layer is seemingly nacreous. The shell surface is generally smooth, ornamentation consisting of fine transverse lyrae or growth lines parallel to the aperture lip.J. Brooks Knight et al 1960. Systematic Descriptions (Gastropoda), Treatise on Invertebrate Paleontology, Part I, Mollusca 1, R.C. Moore (ed). The Anomphalidae differ from the Euomphalcea to which they have been reassigned in being more tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy Of The Gastropoda (Ponder & Lindberg, 1997)
The taxonomy of the Gastropoda, as revised by Winston Ponder and David R. Lindberg in 1997, is an older taxonomy of the class Gastropoda, the class of molluscs consisting of all snails and slugs. The full name of the work in which this taxonomy was published is ''Towards a phylogeny of gastropod molluscs: an analysis using morphological characters.'' This taxonomy assigns the various Gastropods into ranked categories, such as sub-orders and families, but does not address the classification of genera or individual species. This classification scheme is based on the molluscs' internal and external shapes and forms, but did not take into account any analysis of their DNA or RNA. The classification below was the most recent until Bouchet and Rocroi published their revised taxonomy in 2005, which differs primarily in that the higher taxa are expressed as unranked clades where known, and termed "informal groups" or groups" where monophyly (a single lineage) has not yet been determine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euomphalus Pentangulatus
''Euomphalus'' is a genus of fossil marine gastropods known to have lived from the Silurian to the Middle Permian.J.B.Knight,et al 1960. Treatise on Invertebrate Paleontology, Part I, Mollusca 1, ch on systematic descriptions. Geol Soc of America and Univ Kansas Press.(in Czech) Pek I., Vašíček Z., Roček Z., Hajn. V. & Mikuláš R.: ''Základy zoopaleontologie''. - Olomouc, 1996. 264 pp., . Description ''Euomphalus'' is characterized by a closely coiled shell with a depressed to slightly elevated spire and a channel-bearing angulation (a selenizone) on the upper surface of the whorls. The lower surface of the whorls is rounded to angular. '' Amphiscapha'', '' Philoxene'', and '' Straparollus'' are among similar related genera. '' Serpulospira'', also related, differs in having a broadly open spiral in the adult form. Taxonomy ''Euomphalus'' is the type genus of the family Euomphalidae Euomphalidae is an extinct family of Paleozoic to early Mesozoic marine molluscs w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Treatise On Invertebrate Paleontology
The ''Treatise on Invertebrate Paleontology'' (or ''TIP'') published by the Geological Society of America and the University of Kansas Press, is a definitive multi-authored work of some 50 volumes, written by more than 300 paleontologists, and covering every phylum, class, order, family, and genus of fossil and extant (still living) invertebrate animals. The prehistoric invertebrates are described as to their taxonomy, morphology, paleoecology, stratigraphic and paleogeographic range. However, taxa with no fossil record whatsoever have just a very brief listing. Publication of the decades-long ''Treatise on Invertebrate Paleontology'' is a work-in-progress; and therefore it is not yet complete: For example, there is no volume yet published regarding the post-Paleozoic era caenogastropods (a molluscan group including the whelk and Common periwinkle, periwinkle). Furthermore, every so often, previously published volumes of the ''Treatise'' are revised. Evolution of the proje ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microdomatidae
Microdomatidae is an extinct family of fossil sea snails, marine gastropod mollusks in the superfamily Trochoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Taxonomy This family consists of two following subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005): * Microdomatinae Wenz, 1938 * Decorospirinae Blodgett & Frýda, 1999 Genera Genera within the family Microdomatidae include: Subfamily Microdomatinae: Paleobiology Database
The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals, plants, and mi ...
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Holopeidae
†Holopeidae is an extinct family of paleozoic gastropod mollusks.MolluscaBase eds. (2022). MolluscaBase. Holopeidae Cossmann, 1908 †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=833729 on 2022-11-12 These molluscs were stationary epifaunal suspension feeders. This family is unassigned to superfamily. This family has no subfamilies. Genera Genera in the family Holopeidae include: * '' Cyclora'' * '' Eopagodea'' * '' Holopea'' J. Hall, 1847 * '' Pachystrophia'' Perner, 1903 * '' Ptychonema'' Perner, 1903 * '' Raphistomina'' Ulrich & Scofield, 1897Popov, L. E., Ebbestad, J. O. R., Mambetov, A., & Apayarov, F. K. (2007). A low diversity shallow water lingulid brachiopod-gastropod association from the Upper Ordovician of Kyrgyz Range. Acta Palaeontologica Polonica, 52(1). * '' Sinutropis'' Perner, 1903 but in family Euomphalidae Euomphalidae is an extinct family of Paleozoic to early Mesozoic marine molluscs w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elasmonematidae
Elasmonematidae is an extinct family of gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...s in the clade Vetigastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). This family has no subfamilies. Genera Genera within this family include: * '' Elasmonema'', the type genus, aka ''Callonema'' * '' Anematina'' * '' Discordichilus'' * '' Hawletrochus'' * '' Heidelbergeria'' * '' Kimina'' * '' Kyndalynia'' * '' Streptotrochis'' References Paleobiology Database info {{Trochoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
