Late TriassicThe Late Triassic is the third and final epoch of the Triassic Period in the geologic time scale, spanning the time between 237 Ma and 201.4 Ma (million years ago). It is preceded by the Middle Triassic Epoch and succeeded by the Early Jurassic Epoch. The corresponding series of rock beds is known as the Upper Triassic. The Late Triassic is divided into the Carnian, Norian and Rhaetian ages.
TriassicFirst period of the Mesozoic EraSubdivision of the Triassic according to the ICS, as of 2024.Vertical axis scale: Millions of years agoEtymologyName formalityFormalUsage informationCelestial bodyEarthRegional usageGlobal (ICS)Time scale(s) usedICS Time ScaleDefinitionChronological unitPeriodStratigraphic unitSystemTime span formalityFormalLower boundary definitionFirst appearance of the conodontHindeodus parvusLower boundary GSSPMeishan, Zhejiang, China31°04′47″N119°42′21″E / 31.0798°N 119.7058°E / 31.0798; 119.7058Lower GSSP ratified2001Upper boundary definitionFirst appearance of the ammonitePsiloceras spelae tirolicumUpper boundary GSSPKuhjoch section, Karwendel mountains, Northern Calcareous Alps, Austria47°29′02″N11°31′50″E / 47.4839°N 11.5306°E / 47.4839; 11.5306Upper GSSP ratified2010The Triassic ( ) is a geologic period and a stratigraphic system that spans 50.5 million years from the end of the Permian Period 251.902 Ma (million years ago) to the beginning of the Jurassic Period 201.4 Ma.
ReptileClass of animalsReptiles, as commonly defined, are tetrapodvertebrateanimals with an ectothermic metabolism and amniotic development. Reptiles traditionally comprise four orders: Testudines (turtles), Crocodilia (crocodiles, alligators and gharials), Squamata (lizards and snakes) and Rhynchocephalia (tuatara), with about 12,000 extant species listed in the Reptile Database.
HerbivoreA herbivore is an animal anatomically or physiologically evolved to feed on plants, especially upon vascular tissues such as foliage, fruits or seeds, as the main component of its diet. These more broadly also encompass animals that eat non-vascular autotrophs such as mosses, algae and lichens, but do not include those feeding on decomposed plant matters (i.e. detritivores) or macrofungi (i.e. fungivores).
Middle TriassicSubdivision of the Triassic according to the ICS, as of 2024.Vertical axis scale: Millions of years agoEtymologyName formalityFormalUsage informationCelestial bodyEarthRegional usageGlobal (ICS)Time scale(s) usedICS Time ScaleDefinitionChronological unitEpochStratigraphic unitSeriesTime span formalityFormalLower boundary definitionNot formally definedLower boundary definition candidatesFAD of the ConodontChiosella timorensisBase of magnetic zone MT1nLower boundary GSSP candidate section(s), Northern Dobruja, RomaniaGuandao, Guizhou, ChinaUpper boundary definitionFAD of the AmmoniteUpper boundary GSSP, Dolomites, Italy46°31′37″N11°55′49″E / 46.5269°N 11.9303°E / 46.5269; 11.9303Upper GSSP ratified2008In the geologic timescale, the Middle Triassic is the second of three epochs of the Triassicperiod or the middle of three series in which the Triassic system is divided in chronostratigraphy.
Type speciesA type species (species typica) is the species considered to be permanently taxonomically associated with the name of a genus or subgenus, and that is used to identify it and distinguish it from others. In modern times, it is normally assigned when the genus or subgenus is first named. Any taxonomic revisions must be done in such a way that the genus or subgenus retains the type species if the genus is to keep its name.
1972 in paleontologyPaleontology or palaeontology is the study of prehistoriclife forms on Earth through the examination of plant and animal fossils. This includes the study of body fossils, tracks (ichnites), burrows, cast-off parts, fossilised feces (coprolites), palynomorphs and chemical residues. Because humans have encountered fossils for millennia, paleontology has a long history both before and after becoming formalized as a science.
ArchosauromorphaArchosauromorpha (Greek for "ruling lizard forms") is a clade of diapsid reptiles containing all reptiles more closely related to archosaurs (such as crocodilians and dinosaurs, including birds) than lepidosaurs (such as tuataras, lizards, and snakes). Archosauromorphs first appeared during the late Middle Permian or Late Permian, though they became much more common and diverse during the Triassic period.
GenusGenus (; pl.: genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as 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.
MoroccoCountry in North AfricaMorocco, officially the Kingdom of Morocco, is a country in the Maghreb region of North Africa.
MadagascarMadagascar, officially the Republic of Madagascar, is an island country in the Indian Ocean that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's fourth-largest island, the second-largest island country, and the 46th-largest country overall. Its capital and largest city is Antananarivo.
ExtinctionTermination of a species' lineageThe thylacine (Thylacinus cynocephalus) is an example of a recently extinct species.Palaeotherium is an example of an extinct genus that is only recorded from fossil records before the existence of hominids.Extinction is the termination of a species via the death of its last member. A taxon may become functionally extinct before the death of its last member if it loses the capacity to reproduce and recover.*As an Amazon Associate I earn from qualifying purchases.