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Glaucobalaena
''Glaucobalaena'' is an extinct genus of eschrichtiid that lived during the Pliocene epoch. Distribution ''Glaucobalaena inopinata'' is known from the Sabbie d'Asti Formation of Piedmont Piedmont ( ; ; ) is one of the 20 regions of Italy, located in the northwest Italy, Northwest of the country. It borders the Liguria region to the south, the Lombardy and Emilia-Romagna regions to the east, and the Aosta Valley region to the ..., Italy. References Monotypic prehistoric mammal genera Prehistoric cetacean genera Pliocene mammals of Europe Fossils of Italy Fossil taxa described in 2024 Eschrichtiidae {{Paleo-whale-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eschrichtiidae
Eschrichtiidae or the gray whales is a family (taxonomy), family of baleen whale (Parvorder Mysticeti) with a single extant species, the gray whale (''Eschrichtius robustus''), as well as four described fossil genera: ''Archaeschrichtius'' (Miocene), ''Glaucobalaena'' and ''Eschrichtioides'' (Pliocene) from Italy, and ''Gricetoides'' from the Pliocene of North Carolina. Some phylogenetic studies have found this family to be invalid, with its members nesting inside of the clade Rorqual, Balaenopteridae. The names of the extant genus and the family honours Danish zoologist Daniel Eschricht. Taxonomy In his morphological analysis, found that eschrichtiids and Cetotheriidae (''Cetotherium'', ''Mixocetus'' and ''Metopocetus'') form a monophyletic sister group of Balaenopteridae. A specimen from the Late Pliocene of Northern Italy, named ''"Cetotherium" gastaldii'' by and renamed ''"Balaenoptera" gastaldii'' by , was identified as a basal eschrichtiid by who recombined it to ''Eschr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinction
Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and recover. As a species' potential Range (biology), range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxon, Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the Fossil, fossil record) after a period of apparent absence. Over five billion species are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryotes globally, possibly many times more if microorganisms are included. Notable extinct animal species include Dinosaur, non-avian dinosaurs, Machairodontinae, saber-toothed cats, and mammoths. Through evolution, species arise through the process of specia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch (geology), epoch in the geologic time scale that extends from 5.33 to 2.58See the 2014 version of the ICS geologic time scale million years ago (Ma). It is the second and most recent epoch of the Neogene Period in the Cenozoic, Cenozoic Era. The Pliocene follows the Miocene Epoch and is followed by the Pleistocene Epoch. Prior to the 2009 revision of the geologic time scale, which placed the four most recent major glaciations entirely within the Pleistocene, the Pliocene also included the Gelasian Stage, which lasted from 2.59 to 1.81 Ma, and is now included in the Pleistocene. As with other older geologic periods, the Stratum, geological strata that define the start and end are well-identified but the exact dates of the start a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epoch (geology)
The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronology (a scientific branch of geology that aims to determine the age of rocks). It is used primarily by Earth scientists (including geologists, paleontologists, geophysicists, geochemists, and paleoclimatologists) to describe the timing and relationships of events in geologic history. The time scale has been developed through the study of rock layers and the observation of their relationships and identifying features such as lithologies, paleomagnetic properties, and fossils. The definition of standardised international units of geological time is the responsibility of the International Commission on Stratigraphy (ICS), a constituent body of the International Union of Geological Sciences (IUGS), whose primary objective is to precis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piedmont
Piedmont ( ; ; ) is one of the 20 regions of Italy, located in the northwest Italy, Northwest of the country. It borders the Liguria region to the south, the Lombardy and Emilia-Romagna regions to the east, and the Aosta Valley region to the northwest. Piedmont also borders Switzerland to the north and France to the west. Piedmont has an area of , making it the second-largest region of Italy after Sicily. It has 4,255,702 inhabitants as of 2025. The capital of Piedmont is Turin, which was also the capital of the Kingdom of Italy from 1861 to 1865. Toponymy The French ''Piedmont'', the Italian ''Piemonte'', and other variant cognates come from the medieval Latin or , i.e. , meaning "at the foot of the mountains" (referring to the Alps), attested in documents from the end of the 12th century. Geography Piedmont is surrounded on three sides by the Alps, including Monte Viso, Monviso, where the Po River, river Po rises, and Monte Rosa. It borders France (Auvergne-Rhône ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diversity (journal)
This is a list of academic journals published by MDPI. As of September 2022, MDPI publishes 399 peer-reviewed academic journals and nine conference journals. {, class="wikitable sortable" , +List of MDPI journals !Journal name !Subject !Established !ISSN , - , ''Acoustics'' , Engineering , 2019 , 2624-599X , - , ''Actuators'' , Engineering , 2012 , 2076-0825 , - , ''Administrative Sciences'' , Business , 2011 , 2076-3387 , - , ''Adolescents'' , Health , 2021 , 2673-7051 , - , ''Advances in Respiratory Medicine'' (formerly ''Pneumonologia i Alergologia Polska)'' , Health , , 2451-4934 , - , ''Aerospace'' , Engineering , 2014 , 2226-4310 , - , ''Agriculture'' , Agriculture , 2011 , 2077-0472 , - , ''AgriEngineering'' , Agriculture , 2019 , 2624-7402 , - , ''Agronomy'' , Agriculture , 2011 , 2073-4395 , - , ''AI'' , Computers , 2020 , 2673-2688 , - , ''Algorithms'' , Mathematics , 2008 , 1999-4893 , - , ''Allergies'' , Medicine , 2021 , 2313-5786 , - , ''Alloys'' , Engineering ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Prehistoric Mammal Genera
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical system. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Cetacean Genera
Prehistory, also called pre-literary history, is the period of human history between the first known use of stone tools by hominins million years ago and the beginning of recorded history with the invention of writing systems. The use of symbols, marks, and images appears very early among humans, but the earliest known writing systems appeared years ago. It took thousands of years for writing systems to be widely adopted, with writing having spread to almost all cultures by the 19th century. The end of prehistory therefore came at different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently. It is based on an old conception of history that without written records there could be no history. The most common conception today is that history is based on evidence, however the concept of prehistory hasn't been completely discarded. In the early Bronze Age, Sumer in Mesopotamia, the Indus Valley Civilis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene Mammals Of Europe
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.33 to 2.58See the 2014 version of the ICS geologic time scale million years ago (Ma). It is the second and most recent epoch of the Period in the . The Pliocene follows the Epoch and is followed by the |
Fossils Of Italy
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Though the fossil record is incomplete, numerous studies have demonstrated that there is enough information available to give a good understanding of the pattern of diversification of life on Earth. In addition, the record can predict and fill gaps such as the discovery of ''Tiktaalik'' in the arctic of Canada. Paleontology includes the study of fossils: their age, method of formation, and evolutionary significance. Specimens are sometimes considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years to 4.1 billion years old. Early edition, published online before print. The ob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
