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Tofanellidae
The Tofanellidae is a taxonomic family of sea snails, marine gastropod mollusks in the informal group Lower Heterobranchia. Subfamilies The family Tofanellidae used to consist of the two following subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005): * Tofanellinae Bandel, 1995 * Usedomellinae Gründel, 1998Gründel J. (1998). "Heterostropha (Gastropoda) aus dem Dogger Norddeutschlands und Nordpolens. II. Weitere Allogastropoda". ''Freiberger Forschungshefte'' ser. C., 474(6): 1-37, plates 1-7abstract Genera Genera within the family Tofanellidae include: * ''Atomiscala'' de Boury, 1909 * ''Bouryiscala'' Cossmann, 1902 * ''Coenaculum'' Iredale, 1924 * '' Graphis'' Jeffreys, 1867 * † '' Tofanella'' Bandel, 1995 - type genus of the family Tofanellidae, from the late Triassic * † '' Usedomella'' Gründel, 1998 - type genus of the subfamily Usedomellinae ** '' Usedomella laevigatoidea'' (Gründel, 1993) - from the mid Jurassic ** '' Usedomella ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathildoidea
Mathildoidea is a superfamily of sea snails, marine gastropod mollusks in the informal group Lower Heterobranchia.MolluscaBase eds. (2021). MolluscaBase. Mathildoidea Dall, 1889. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=411861 on 2021-06-25 Families Families within the superfamily Mathildoidea include: *Family Mathildidae Mathildidae is a family of minute sea snails, marine gastropod molluscs in the superfamily Mathildoidea of the informal group of the Lower Heterobranchia.Bouchet, P.; Gofas, S. (2012). Mathildidae. Accessed through: World Register of Marin ... * † Family Ampezzanildidae * † Family Anoptychiidae * † Family Gordenellidae * Family Tofanellidae * † Family Trachoecidae References * Jensen, R. H. (1997). A Checklist and Bibliography of the Marine Molluscs of Bermuda. Unp. , 547 pp * Bouchet P., Rocroi J.P., Hausdorf B., Kaim A., Kano Y., Nützel A., Parkhaev P., Schrödl M. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy Of The Gastropoda (Bouchet & Rocroi, 2005)
The taxonomy of the Gastropoda as it was revised in 2005 by Philippe Bouchet and Jean-Pierre Rocroi is a system for the scientific classification of gastropod mollusks. (Gastropods are a taxonomic class of animals which consists of snails and slugs of every kind, from the land, from freshwater, and from saltwater.) The paper setting out this taxonomy was published in the journal ''Malacologia''. The system encompasses both living and extinct groups, as well as some fossils whose classification as gastropods is uncertain. The Bouchet & Rocroi system was the first complete gastropod taxonomy that primarily employed the concept of clades, and was derived from research on molecular phylogenetics; in this context a clade is a "natural grouping" of organisms based upon a statistical cluster analysis. In contrast, most of the previous overall taxonomic schemes for gastropods relied on morphological features to classify these animals, and used taxon ranks such as order, superorder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graphis (gastropod)
''Graphis'' is a genus of medium-sized sea snails, marine gastropod molluscs in the family Cimidae The Cimidae is a Taxonomy (biology), taxonomic family (biology), family of sea snails, Marine (ocean), marine gastropod mollusks in the infraclass Lower Heterobranchia.MolluscaBase eds. (2021). MolluscaBase. Cimidae Warén, 1993. Accessed through .... Species The species within this genus include: * '' Graphis albida'' (Kanmacher, 1798) * '' Graphis ambigua'' (Weisbord, 1962) * '' Graphis barashi'' van Aartsen, 2002 * '' Graphis blanda'' (Finlay, 1924) * '' Graphis eikenboomi'' van der Linden & Moolenbeek, 2004 * '' Graphis gracilis'' (Monterosato, 1874) * '' Graphis lightbourni'' van der Linden & Moolenbeek, 2004 * '' Graphis menkhorsti'' De Jong & Coomans, 1988 * '' Graphis pacifica'' Bandel, 2005 * '' Graphis perrierae'' Barros, Lima Silva Mello, Barros, Lima, Do Carmo Ferrão Santos, Cabral & Padovan, 2003 * '' Graphis pruinosa'' Gofas & Rueda, 2014 * '' Graphis sculpturat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living Fossil
A living fossil is an extant taxon that cosmetically resembles related species known only from the fossil record. To be considered a living fossil, the fossil species must be old relative to the time of origin of the extant clade. Living fossils commonly are of species-poor lineages, but they need not be. While the body plan of a living fossil remains superficially similar, it is never the same species as the remote relatives it resembles, because genetic drift would inevitably change its chromosomal structure. Living fossils exhibit stasis (also called "bradytely") over geologically long time scales. Popular literature may wrongly claim that a "living fossil" has undergone no significant evolution since fossil times, with practically no molecular evolution or morphological changes. Scientific investigations have repeatedly discredited such claims. The minimal superficial changes to living fossils are mistakenly declared as an absence of evolution, but they are examples of s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Jurassic
The Early Jurassic Epoch (geology), Epoch (in chronostratigraphy corresponding to the Lower Jurassic series (stratigraphy), Series) is the earliest of three epochs of the Jurassic Period. The Early Jurassic starts immediately after the Triassic-Jurassic extinction event, 201.3 Ma (million years ago), and ends at the start of the Middle Jurassic 174.1 Ma. Certain rocks of marine origin of this age in Europe are called "Lias Group, Lias" and that name was used for the period, as well, in 19th-century geology. In southern Germany rocks of this age are called Black Jurassic. Origin of the name Lias There are two possible origins for the name Lias: the first reason is it was taken by a geologist from an England, English quarryman's dialect pronunciation of the word "layers"; secondly, sloops from north Cornwall, Cornish ports such as Bude would sail across the Bristol Channel to the Vale of Glamorgan to load up with rock from coastal limestone quarries (lias limestone from S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jurassic
The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The Jurassic constitutes the middle period of the Mesozoic, Mesozoic Era and is named after the Jura Mountains, where limestone strata from the period were first identified. The start of the Jurassic was marked by the major Triassic–Jurassic extinction event, associated with the eruption of the Central Atlantic magmatic province, Central Atlantic Magmatic Province. The beginning of the Toarcian Stage started around 183 million years ago and is marked by an extinction event associated with widespread Anoxic event, oceanic anoxia, ocean acidification, and elevated temperatures likely caused by the eruption of the Karoo-Ferrar, Karoo-Ferrar large igneous provinces. The end of the Jurassic, however, has no clear boundary with the Cretaceous and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
