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Period of major evolutionary diversification of animal life
The Cambrian explosion (also known as the Cambrian radiation or Cambrian diversification) is an interval of time beginning approximately 538.8 million
Cambrian_explosion
First geological period of the Paleozoic Era
but it was not until the Cambrian that fossil diversity seems to have rapidly increased, an event known as the Cambrian explosion, producing the first representatives
Cambrian
History of Earth 4600–539 million years ago
The increase in diversity of lifeforms during the early Cambrian is called the Cambrian explosion of life. While land seems to have been devoid of plants
Precambrian
Records of Earth's development
multicellular life arose, developed over time, and culminated in the Cambrian Explosion about 538.8 million years ago. This sudden diversification of life
History_of_Earth
Evolutionary radiation of marine animal life throughout the Ordovician period
the Ordovician period, 40 million years after the Cambrian explosion, whereby the distinctive Cambrian fauna fizzled out to be replaced with a Paleozoic
Great Ordovician Biodiversification Event
Great_Ordovician_Biodiversification_Event
Proposed evolutionary event in the history of metazoa, producing the Ediacaran biota
believed to have occurred some 36.2 million years earlier than the Cambrian explosion, which had been long thought to be when complex life started on Earth
Avalon_explosion
Life of the Ediacaran period
known as the Cambrian explosion. Most of the currently existing body plans of animals first appeared in the fossil record of the Cambrian rather than the
Ediacaran_biota
along with most other modern phyla originated about 525 Ma during the Cambrian explosion. During the Permian period, synapsids, including the ancestors of
History_of_life
Geologic eon, 2500–539 million years ago
before the proliferation of complex life on the Earth during the Cambrian Explosion. The name Proterozoic combines two words of Greek origin: protero-
Proterozoic
First era of the Phanerozoic Eon
change. The Cambrian witnessed the most rapid and widespread diversification of life in Earth's history, known as the Cambrian explosion, in which most
Paleozoic
Biological kingdom
the Avalon explosion. Nearly all modern animal phyla first appeared in the fossil record as marine species during the Cambrian explosion, which began
Animal
Primitive Mollusc-like organism
of Kimberella is important for the scientific understanding of the Cambrian explosion; if it was a mollusc, or at least a protostome, this would mean that
Kimberella
Earth history, 1.8 to 0.8 billion years ago
complex life later in the Ediacaran Avalon Explosion and the subsequent Phanerozoic Cambrian Explosion. Nonetheless, prokaryotic cyanobacteria were
Boring_Billion
annihilation and diversification, so that certain past times, such as the Cambrian explosion, experienced maximums of diversity followed by sharp winnowing. Species
Timeline_of_life
Organisms that live in salt water
as the Avalon Explosion. This was followed in the early Phanerozoic by a more prominent radiation event known as the Cambrian Explosion, where actively
Marine_life
the Precambrian Supereon. The Ediacaran fauna disappears, while the Cambrian explosion initiates the emergence of most forms of complex life, including vertebrates
Timeline_of_Earth
Fourth and current eon of the geological timescale
485 million years ago. The Cambrian sparked a rapid expansion in the diversity of animals, in an event known as the Cambrian explosion, during which the greatest
Phanerozoic
Main stage in the Neoproterozoic assembly of East and West Gondwana
of sediment, lasted for 260 million years and coincided with the Cambrian explosion, the sudden radiation of animal (Metazoan) life c. 550 Ma. These unprecedented
East_African_Orogeny
Phylum of animals having a dorsal nerve cord
animal taxa. Chordate fossils have been found from as early as the Cambrian explosion over 539 million years ago. Of the more than 81,000 living species
Chordate
Third planet from the Sun
preceded the Cambrian explosion, when multicellular life forms significantly increased in complexity. Following the Cambrian explosion, 535 Ma, there
Earth
Extinct group of animals that lived between 485 and 538 million years ago
later than the Cambrian. However, the better picture of Cambrian explosion in the light of Cambrian chordates, according to Stephen Jay Gould, prompted "revised
Cambrian_chordates
British palaeontologist
astrobiologist known for his study of the fossils of the Burgess Shale and the Cambrian explosion. The results of these discoveries were celebrated in Stephen Jay Gould's
Simon_Conway_Morris
Change in the heritable traits of populations
appeared over a span of around 10 million years in what is called the Cambrian explosion. Here, the majority of types of modern animals appeared in the fossil
Evolution
Ancient supercontinent of approximately 2,500 to 1,500 million years ago
Earliest fungi ← Neoproterozoic oxygenation event ← Ediacaran biota ← Cambrian explosion ← Earliest tetrapods ← Earliest hominoid (million years ago)
Columbia_(supercontinent)
Species of worm-like animal
years ago in the Ediacaran period, around 10 million years before the Cambrian explosion. A fossil of this creature and its tracks were discovered in 2019
Yilingia
Variety and variability of life forms
540 million years) marked a rapid growth in biodiversity via the Cambrian explosion. In this period, the majority of multicellular phyla first appeared
Biodiversity
Subphylum of chordates
all described animal species. The first vertebrates appeared in the Cambrian explosion some 518 million years ago. Jawed vertebrates evolved in the Ordovician
Vertebrate
Set of morphological features common to members of a phylum of animals
considered to have evolved in a flash in the Ediacaran biota; filling the Cambrian explosion with the results, and a more nuanced understanding of animal evolution
Body_plan
Hypothesis that complex extraterrestrial life is improbable and extremely rare
to the emergence of eukaryotic cells, sexual reproduction, and the Cambrian explosion of animal, plant, and fungi phyla. The evolution of human beings and
Rare_Earth_hypothesis
Extinct stem-arthropod species found in Cambrian fossil deposits
multi-celled animals appeared suddenly during the Early Cambrian, in an event called the Cambrian explosion, or had arisen earlier but without leaving fossils
Opabinia
of the events of the Cambrian becomes clearer, data have accumulated to make some postulated causes for the Cambrian explosion look improbable. Some
Discredited hypotheses for the Cambrian explosion
Discredited_hypotheses_for_the_Cambrian_explosion
American scientist (1912 – 1991)
His works on the significance of Cambrian fossils in the 1940s led to the development of the concept "Cambrian explosion," for which he coined the phrase
Preston_Cloud
Fossil-bearing rock formation in the Canadian Rockies
fossil records in the Burgess Shale to understand the climate of the Cambrian explosion. It can be used to predict what Earth's climate would look like 500
Burgess_Shale
Material world and its phenomena
precedes the Cambrian explosion in which multicellular life forms began to proliferate about 530–540 million years ago. Since the Cambrian explosion there have
Nature
Chronology of the major ice ages of the Earth
responsible for the subsequent Cambrian explosion, a time of rapid diversification of multi-cellular life during the Cambrian Period. The hypothesis is still
Timeline_of_glaciation
Worldwide glaciation episodes during the Proterozoic eon
sudden radiations of multicellular bioforms known as the Avalon and Cambrian explosions; the most recent Snowball episode may have triggered the evolution
Snowball_Earth
Aquatic animal phylum having cnidocytes
580 million years ago during the Ediacaran period, preceding the Cambrian Explosion. Other fossils show that corals may have been present shortly before
Cnidaria
Study of past life through fossils
multicellular life. Fossil discoveries have also improved knowledge about the Cambrian explosion with the discoveries of multiple new lagerstätte deposits. The Burgess
Paleontology
Mid-Cambrian fossils from a deposit in British Columbia, Canada
of animals appeared very rapidly in the Early Cambrian, in what is often called the Cambrian explosion. This view was already known to Charles Darwin
Fossils_of_the_Burgess_Shale
the systems Behe used as examples of irreducible complexity. The Cambrian explosion was the relatively rapid appearance around 539 million years ago of
Objections_to_evolution
Rapid decrease in Earth's biodiversity
Proterozoic Eon. At the end of the Ediacaran and just before the Cambrian explosion, yet another Proterozoic extinction event (of unknown magnitude) is
Extinction_event
Origin and diversification of fish through geologic time
Fish began evolving about 530 million years ago during the Cambrian explosion. It was during this time that the early chordates developed the skull and
Evolution_of_fish
Origins and diversification of the organs of sight through geologic time
lower Cambrian had a burst of apparently rapid evolution, called the "Cambrian explosion". One of the many hypotheses for "causes" of the Cambrian explosion
Evolution_of_the_eye
American paleontologist
intelligent design is a better explanation than evolution for the Cambrian explosion, a 70 million to 80 million year diversification of invertebrate animal
Marcus_R._Ross
Topics referred to by the same term
is a synonym Cambrian explosion Cambrian Heights, Calgary, Alberta, Canada Cambrian Mountains, a mountain range in Wales Cambrians, a former gold-mining
Cambrian_(disambiguation)
Group of organic microfossils
major ecological events such as the appearance of predation and the Cambrian explosion. Many acritarchs likely represent resting cysts of single-celled marine
Acritarch
Marine animals without a vertebral column
evolved very rapidly in the Cambrian explosion and that the Burgess Shale's "weird wonders" showed that the Early Cambrian was a uniquely experimental
Marine_invertebrates
Period of rapid plant and fungal diversification, 428–359 million years ago
periods, comparable in scale and effect to the explosion in diversity of animal life during the Cambrian explosion, especially in vertical growth of lignified
Silurian-Devonian Terrestrial Revolution
Silurian-Devonian_Terrestrial_Revolution
Scientific dating of the Earth
Earliest fungi ← Neoproterozoic oxygenation event ← Ediacaran biota ← Cambrian explosion ← Earliest tetrapods ← Earliest hominoid (million years ago)
Age_of_Earth
Eukaryotes other than animals, plants or fungi
"Phytoplankton dynamics from the Cambrian Explosion to the onset of the Great Ordovician Biodiversification Event: A review of Cambrian acritarch diversity" (PDF)
Protist
Geological record of biological activity
Sediment disturbance by Ediacaran bulldozers and the roots of the Cambrian explosion. Sci Rep 8, 4514 (2018). https://doi.org/10.1038/s41598-018-22859-9
Trace_fossil
October 2017. Steele, Edward J.; et al. (1 August 2018). "Cause of Cambrian Explosion — Terrestrial or Cosmic?". Progress in Biophysics and Molecular Biology
Earliest_known_life_forms
evolution of life on Earth. There was also a renewed interest in the Cambrian explosion that saw the development of the body plans of most animal phyla. The
History_of_paleontology
Monophyletic closure of a set of living species
rather than in phyla of their own, is thought by some to make the Cambrian explosion easier to understand without invoking unusual evolutionary mechanisms;
Crown_group
Cosmological time duration
oxygen ← Sexual reproduction ← Earliest fungi ← Earliest land plants ← Cambrian explosion ← Earliest mammals ← Earliest apes / humans (billion years ago)
Age_of_the_universe
Early bilaterian organism fossil species
the Ediacaran period, roughly 15 million years before the Cambrian, when the Cambrian explosion occurred and where widespread fossil evidence of modern
Ikaria_(genus)
ISBN 978-0-03-056747-6. "Obviously vertebrates must have had ancestors living in the Cambrian, but they were assumed to be invertebrate forerunners of the true vertebrates
Timeline_of_human_evolution
Paleoproterozoic surge in atmospheric oxygen
ecosystems, although these did not appear until the late Proterozoic and Cambrian. The Great Oxygenation Event triggered an explosive growth in the diversity
Great_Oxidation_Event
Group of extinct creatures that were part of the Ediacaran biota
(formerly Vendian). They became extinct shortly after the so-called Cambrian explosion, with the introduction of fauna forming groups more recognizably related
Vendobionta
Series of Early Cambrian deposits in the Chiungchussu Formation in China
the Maotianshan Shales are remarked as "our best window into the Cambrian 'explosion'", especially on the origin of chordates. Although fossils from the
Maotianshan_Shales
External skeleton of an organism
Cambrian period, 550 million years ago. The evolution of a mineralised exoskeleton is considered a possible driving force of the Cambrian explosion of
Exoskeleton
1989 book by Stephen Jay Gould
million years ago. Gould argues that during this period just after the Cambrian explosion there was a greater disparity of anatomical body plans (phyla) than
Wonderful_Life_(book)
Fossil of possible very early bilateral animal
microscopic size, making the sudden appearance of many animal phyla in the Cambrian explosion an illusion and merely represented a (geologically) sudden increase
Vernanimalcula
Discrepancy of the lack of evidence for alien life despite its apparent likelihood
prokaryotic cells to eukaryotic cells, sexual reproduction and the Cambrian explosion. In his book Wonderful Life (1989), Stephen Jay Gould suggested that
Fermi_paradox
Time scales on the billions of years
Earliest fungi ← Neoproterozoic oxygenation event ← Ediacaran biota ← Cambrian explosion ← Earliest tetrapods ← Earliest hominoid (million years ago)
Deep_time
Very long term changes in Earth's temperature
only slightly before the rapid diversification of life during the Cambrian explosion, it has been proposed that this ice age (or at least its end) created
Geologic_temperature_record
Hypothetical Neoproterozoic supercontinent
rapid evolution of primitive life during the subsequent Ediacaran and Cambrian periods are thought to have been triggered by the breaking up of Rodinia
Rodinia
Academic journal
In 2018, the journal published a review article entitled "Cause of Cambrian Explosion – Terrestrial or Cosmic?" authored by over 30 authors, including Edward
Progress in Biophysics and Molecular Biology
Progress_in_Biophysics_and_Molecular_Biology
Neoproterozoic Tonian Cryogenian Ediacaran Phanerozoic Paleozoic Cambrian Cambrian Explosion Ordovician Silurian Devonian Carboniferous Permian Mesozoic Triassic
List_of_time_periods
Physical quantity of hot and cold in ocean water
provide evidence that the ancient world was much warmer than today. The Cambrian Explosion approximately 538.8 million years ago was a key event in the evolution
Ocean_temperature
Great changes in evolutionary history
This is a kind of evolution which must be a rare event. The Cambrian explosion or Cambrian radiation was the relatively rapid appearance of most major
Megaevolution
Group of extinct aquatic animals
arms race which this indicates is commonly cited as a cause of the Cambrian explosion of animal diversity and complexity. Cloudina varies in size from a
Cloudinidae
Study of changes in ancient climate
Event) Later Neoproterozoic Snowball Earth (~600 Mya, precursor to the Cambrian Explosion) Andean-Saharan glaciation (~450 Mya) Carboniferous Rainforest Collapse
Paleoclimatology
Fossils from the Ediacaran and Cambrian periods
evolved, and particularly for the pace and pattern of evolution in the Cambrian explosion. Besides including the earliest known representatives of some modern
Small_shelly_fauna
analyses heightened interest in the existing debate about whether the Cambrian explosion represented a truly abrupt evolution of recognisable animals or was
History_of_the_Burgess_Shale
Phylum of photosynthesising prokaryotes
marine and non-marine environments in the photic zone. After the Cambrian explosion of marine animals, grazing on the stromatolite mats by herbivores
Cyanobacteria
Everything in space and time
oxygen ← Sexual reproduction ← Earliest fungi ← Earliest land plants ← Cambrian explosion ← Earliest mammals ← Earliest apes / humans (billion years ago)
Universe
Biological process to convert light into chemical energy
Earliest fungi ← Neoproterozoic oxygenation event ← Ediacaran biota ← Cambrian explosion ← Earliest tetrapods ← Earliest hominoid (million years ago)
Photosynthesis
Active galactic nucleus (AGN) containing a supermassive black hole
known that can produce such high power over a very long term. (Stellar explosions such as supernovas and gamma-ray bursts, and direct matter–antimatter
Quasar
Diversification of animal burrowing
palaeontologists' understanding of the early Cambrian, and provides an additional line of evidence to show that the Cambrian explosion represents a real diversification
Cambrian_substrate_revolution
Class of extinct, Paleozoic arthropods
known as the Cambrian explosion because they are the most diverse group of metazoans known from the fossil record of the early Cambrian. Trilobites are
Trilobite
Superphylum of protostomes
2025). "Origin and evolution of bodyplans of ecdysozoans during the Cambrian explosion". Chinese Journal of Nature. 47 (2): 125–133. doi:10.3969/j.issn.0253-9608
Ecdysozoa
Extinct genus of cambrian radiodont
and taxonomic revisions. As Stephen Jay Gould, who popularised the Cambrian explosion in his 1989 book Wonderful Life, explained: [The story of Anomalocaris
Anomalocaris
Cosmological phenomenon
proposed by Joel Smoller and Blake Temple in 2003, has the "big bang" as an explosion inside a black hole, producing the expanding volume of space and matter
Accelerating expansion of the universe
Accelerating_expansion_of_the_universe
Matter with biological processes
Earliest fungi ← Neoproterozoic oxygenation event ← Ediacaran biota ← Cambrian explosion ← Earliest tetrapods ← Earliest hominoid (million years ago)
Life
Includes rocks over 4 billion years old from the Hadean Eon
Earliest fungi ← Neoproterozoic oxygenation event ← Ediacaran biota ← Cambrian explosion ← Earliest tetrapods ← Earliest hominoid (million years ago)
Oldest_dated_rocks
Family of extinct molluscs
The halkieriids are a group of fossil organisms from the Lower to Middle Cambrian. Their eponymous genus is Halkieria /hælˈkɪəriə/. The group is sometimes
Halkieriid
Hypotheses for the possible sources of the water on Earth
Earliest fungi ← Neoproterozoic oxygenation event ← Ediacaran biota ← Cambrian explosion ← Earliest tetrapods ← Earliest hominoid (million years ago)
Origin_of_water_on_Earth
Fossil formation in south-central China
recording conditions up to a good forty to fifty million years before the Cambrian explosion at the beginning of the Phanerozoic. The whole sequence sits on an
Doushantuo_Formation
Preserved remains or traces of organisms from a past geological age
precise and reliable for estimating when the groups that feature in the Cambrian explosion first evolved, and estimates produced by different techniques may
Fossil
Organism that consists of only one cell
Earliest fungi ← Neoproterozoic oxygenation event ← Ediacaran biota ← Cambrian explosion ← Earliest tetrapods ← Earliest hominoid (million years ago)
Unicellular_organism
Chinese artificial intelligence chip manufacturer
The two were part of the Cambricon project which is named after the Cambrian explosion. The project formed in 2008 aimed to develop a brain-inspired processor
Cambricon_Technologies
Switch from fermentation to aerobic respiration
leading to organisms evolving photosynthesis and what is termed the Cambrian explosion of species. It has also been suggested that this increased oxygen
Pasteur_point
State of having three germ layers in embryonic development
establishing themselves as a group prior to their diversification during the Cambrian explosion. Embryo – Multicellular diploid eukaryote in its earliest stage of
Triploblasty
Fossil that requires the use of a microscope to see
show traits similar to those of genuine taxa — for example the 'explosion' in the Cambrian and the mass extinction at the end of the Permian. Acritarch diversity
Microfossil
Marine bacteria and marine archaea
complex life, in the form of crown eukaryotes, did not appear until the Cambrian explosion a mere 500 million years ago. The Earth is about 4.54 billion years
Marine_prokaryotes
Phylum of invertebrates with jointed exoskeletons
the well-known groups, and thus intensified the debate about the Cambrian explosion. A fossil of Marrella from the Burgess Shale has provided the earliest
Arthropod
Life arising from non-living matter
/ Solar System ← LUCA ← Earliest fossils ← Earliest oxygen ← Atmospheric oxygen ← Sexual reproduction ← Cambrian explosion L i f e (billion years ago)
Abiogenesis
Discussion of the meaning and usage of the terms evolution, fact and theory
Earliest fungi ← Neoproterozoic oxygenation event ← Ediacaran biota ← Cambrian explosion ← Earliest tetrapods ← Earliest hominoid (million years ago)
Evolution_as_fact_and_theory
Extinct genus of primitive chordates
as the earliest described Cambrian chordate". It is estimated to have lived during the latter period of the Cambrian explosion. Since its initial discovery
Pikaia
CAMBRIAN EXPLOSION
CAMBRIAN EXPLOSION
Girl/Female
American, Australian
From Wales
Girl/Female
Indian
Surname or Lastname
English (Cumbria)
English (Cumbria) : probably a habitational name from a lost or unidentified place.
Boy/Male
Teutonic
Rules the elves.
Surname or Lastname
English (Cumbria)
English (Cumbria) : variant of Musgrove.
Surname or Lastname
English (Cumbria)
English (Cumbria) : unexplained.
Surname or Lastname
English (Cumbria)
English (Cumbria) : unexplained. Compare Cortner.Americanized form of German Gärtner (see Gartner).
Girl/Female
English
Spellingreferring to Wales.
Surname or Lastname
English (Cumbria)
English (Cumbria) : habitational name from Salkeld in Cumbria, from Old English salh ‘willow’, ‘sallow’ + hylte ‘wood’. This surname has been present (though never common) in Ireland for centuries.
Surname or Lastname
English (Cumbria)
English (Cumbria) : variant of Irvin.
Surname or Lastname
Cambodian
Cambodian : unexplained.English : variant of Timm.
Surname or Lastname
English (Cumbria)
English (Cumbria) : variant of Pratt.
Surname or Lastname
English (Cumbria)
English (Cumbria) : perhaps a variant of Holme.
Surname or Lastname
Cambodian
Cambodian : unexplained.Peruvian : unexplained. The etymology is not Spanish; it is probably Quechuan.English : unexplained.
Girl/Female
American, British, English
From Wales; Spelling Variant of Cambria Referring to Wales
Surname or Lastname
English (Cumbria)
English (Cumbria) : habitational name from Threlkeld in Cumbria, so named from Old Norse þrǽll ‘thrall’, ‘serf’ + kelda ‘spring’.
Surname or Lastname
English (Cumbria)
English (Cumbria) : perhaps a variant of Blacklock.
Surname or Lastname
English (Cumbria)
English (Cumbria) : unexplained.
Boy/Male
Hebrew
God's able-bodied one.
Female
Chamoru
, warehouse.
CAMBRIAN EXPLOSION
CAMBRIAN EXPLOSION
Boy/Male
Indian, Punjabi, Sikh
One Reflecting on God
Boy/Male
Indian
Good; Most Blessed; Fame
Boy/Male
Tamil
Saikalakala | ஸாஈ கலாகாலா
Lord of eternity, Shirdi Sai baba
Girl/Female
Indian
Past Happy Moments
Boy/Male
British, Danish, English, Finnish, Hebrew, Latin
Descend; Farmer; Flowing Down
Girl/Female
Hindu
Victorious, Victory
Boy/Male
Arabic, Parsi
Caress; Kindness
Girl/Female
Tamil
The name of Goddess Durga, Courage
Boy/Male
Armenian, Australian, Greek
Tower
Boy/Male
Hindu, Indian, Marathi
Perfect Full
CAMBRIAN EXPLOSION
CAMBRIAN EXPLOSION
CAMBRIAN EXPLOSION
CAMBRIAN EXPLOSION
CAMBRIAN EXPLOSION
n.
A kind of linen cloth made in Egypt, and so named from its resemblance to cambric.
a.
Of or pertaining to a division of the Silurian formation, corresponding in general to the Lower Silurian of most authors, exclusive of the Cambrian.
n.
A fine, thin, and white fabric made of flax or linen.
a.
Pertaining to Cumberland, England, or to a system of rocks found there.
a.
Of or pertaining to Cambria or Wales.
a.
Belonging to exchanges in commerce; of exchange.
a.
Of or pertaining to the lowest subdivision of the rocks of the Silurian or Molluscan age; -- sometimes described as inferior to the Silurian. It is named from its development in Cambria or Wales. See the Diagram under Geology.
a.
Designating, or pertaining to, the series of rocks forming the Taconic mountains in Western New England. They were once supposed to be older than the Cambrian, but later proved to belong to the Lower Silurian and Cambrian.
n.
That which is set in or inserted, especially a narrow strip of embroidered lace, muslin, or cambric.
n.
One of the Cimbri. See Cimbric.
n.
A native of Cambria or Wales.
n.
A fabric made, in imitation of linen cambric, of fine, hardspun cotton, often with figures of various colors; -- also called cotton cambric, and cambric muslin.
n.
The Cambrian formation.
a.
Same as Cabiric.
a.
Of or pertaining to the Cimbri.
n.
The ancient Latin name of Wales. It is used by modern poets.
n.
The assemblage of Masters and Doctors at Oxford or Cambrige University, mainly for the granting of degrees.