සරජ්ජුක
Phylum of animals having a dorsal nerve cordසැකිල්ල:SHORTDESC:Phylum of animals having a dorsal nerve cord
Chordatesකාලීන ව්යාප්තිය:
Fortunian – Holocene,
535–0 Ma
Example of chordates of four subphylum of lower rank: a Siberian Tiger (Vertebrata) and a Polycarpa aurata (Tunicata), two Olfactores, as well as Ooedigera peeli (Vetulicolia) and a Branchiostoma lanceolatum (Cephalochordata).
විද්යාත්මක වර්ගීකරණය
අධිරාජධානිය:
Eukaryota
රාජධානිය:
අනිමාලියා
ක්ලේඩය :
ParaHoxozoa
ක්ලේඩය :
Bilateria
ක්ලේඩය :
Nephrozoa
Superphylum:
Deuterostomia
වංශය:
Chordata Haeckel, 1874[ 1] [ 2]
Subgroups
Cephalochordata
†Vetulicolia[ 3]
Olfactores
Tunicata
†Pikaiidae
Vertebrata
†Palaeospondylus
†Zhongxiniscus
And see text
සරජ්ජුකයා (ඉංග්රීසි: Chordate) යනු Chordata වංශයට (phylum) අයත් සත්ත්වයෙකි . ඔවුන්ගේ ජීවන චක්රයේ සමහර අවධිවල ඔවුන් හට notochord, dorsal nerve cord, pharyngeal slit, endostyle සහ post-anal tail සතු වේ. සරජ්ජුකයන් bilaterally symmetric වන අතර ඔවුන් හට coelom, metameric segmentation, සහ circulatory system සතුවේ.
නමේ ඉතිහාසය
Chordata යන නමේ ගෞරවය හිමිවන්නේ William Bateson (1885) හට වුවත් 1880 වන විටත් එය භාවිතයේ පැවතිණ. 1866 දී Ernst Haeckel විසින් tunicates, cephalochordates, සහ vertebrates (පෘෂ්ඨවන්ශීන්) ගෙන් සමන්විත taxon එකක් පිළිබඳ විස්තරයක් සපයා ඇත. ඔහු ජර්මානු vernacular form භාවිතා කළත්
පසුව latinization හේතුකොටගෙන එය
ICZN code
යටතේ අනුමත වේ.[ 2]
ආශ්රිත
මූලාශ්ර
භාහිර සබැඳි
Domain
Archaea
Bacteria
Eukaryota
(Supergroup
Plant
Hacrobia
Heterokont
Alveolata
Rhizaria
Excavata
Amoebozoa
Opisthokonta
Animal
Fungi)
Animalia
Diploblasts (Eumetazoa)
Ctenophora (comb jellies)
ParaHoxozoa (Planulozoa)
P+C
Bilateria (Triploblasts)
Xenacoelomorpha
Xenoturbellida (Xenoturbella)
Acoelomorpha
Nephrozoa
Nephrozoa
Deuterostomia
Chordata
lancelets
tunicates
Vertebrata/Craniata
Ambulacraria
Echinodermata (starfish and relatives)
Hemichordata
Protostomia
Ecdysozoa
Scalidophora
Kinorhyncha (mud dragons)
Priapulida (penis worms)
N+L+P
Nematoida
Nematoda (roundworms)
Nematomorpha (horsehair worms)
L+P
Loricifera (corset animals)
Panarthropoda
Onychophora (velvet worms)
Tactopoda
Arthropoda (arthropods)
Tardigrada (waterbears)
Spiralia
Gnathifera
Chaetognatha (arrow worms)
Gnathostomulida (jaw worms)
M+S
Micrognathozoa (Limnognathia)
Syndermata
Rotifera (wheel animals)
Acanthocephala (thorny-headed worms)
Platytrochozoa
R+M
Mesozoa
Orthonectida
Dicyemida or Rhombozoa
Monoblastozoa (Salinella)†
Rouphozoa
Platyhelminthes (flatworms)
Gastrotricha (hairybacks)
Lophotrochozoa
Cycliophora (Symbion)
Annelida (ringed worms)
Sipuncula ‡
M+K
Kryptotrochozoa
Lophophorata
Bryozoa s.l.
Entoprocta or Kamptozoa
Ectoprocta (moss animals)
Brachiozoa
Brachiopoda (lamp shells)
Phoronida (horseshoe worms)
Major groups within phyla
Sponges
Hexactinellid
Demosponge
Calcareous
Homoscleromorpha
Cnidarians
Anthozoa inc. corals
Hexacorallia
Octocorallia
Medusozoa inc. jellyfish
Myxozoa
Vertebrates
Echinoderms
Sea lilies
Asterozoa inc. starfish
Echinozoa
Nematodes
Chromadorea
Enoplea
Secernentea
Arthropods
Chelicerates/Arachnids
Myriapods
Crustaceans
Hexapods/Insects
Platyhelminths
Turbellaria
Trematoda
Monogenea
Cestoda
Bryozoans
Phylactolaemata
Stenolaemata
Gymnolaemata
Annelids
Polychaetes
Clitellata
Echiura
Sipuncula
Molluscs
Gastropods
Cephalopods
Bivalves
Chitons
Tusk shells
Phyla with ≥1000 extant species bolded
Potentially dubious phyla †
Disputed phyla ‡
See also
Diploblasts
Kingdom Animalia
(unranked) Bilateria
Superphylum Deuterostomia
Olfactores
Urochordata(tunicates)
Ascidiacea (sea squirts)
Appendicularia (larvaceans)
Thaliacea (pyrosomes, salps, doliolids)
Vertebrata
Cyclostomata
Myxini (hagfish)
Hyperoartia (lampreys)
Gnathostomata(jawed vertebrates)
Chondrichthyes (cartilaginous fish: sharks, rays, chimaeras)
Euteleostomi(bony vertebrates)
Actinopterygii (ray-finned fish)
Sarcopterygii(lobe-finned fish)
Actinistia (coelacanths)¹
Rhipidistia
Tetrapoda
Amniota
Sauria
Lepidosauria
Rhynchocephalia (tuatara)²
Squamata (scaled reptiles)²
Archelosauria
¹subclasses of Sarcopterygii
²orders of class Reptilia (reptiles)
italics denote paraphyletic groups
Extant
life phyla/divisions by domain
Bacteria
Acidobacteria
Actinobacteria
Aquificae
Bacteroidetes
Chlamydiae
Chlorobi
Chloroflexi
Chrysiogenetes
Cyanobacteria
Deferribacteres
Deinococcus–Thermus
Dictyoglomi
Fibrobacteres
Firmicutes
Fusobacteria
Gemmatimonadetes
Nitrospirae
Planctomycetes
Proteobacteria
Spirochaetes
Thermodesulfobacteria
Thermomicrobia
Thermotogae
Verrucomicrobia
Archaea
Crenarchaeota
Euryarchaeota
Korarchaeota
Nanoarchaeota
Archaeal Richmond Mine acidophilic nanoorganisms
Eukaryote
Protista
Heterokontophyta
Haptophyta
Cryptophyta
Ciliophora
Apicomplexa
Dinoflagellata
Euglenozoa
Percolozoa
Metamonada
Radiolaria
Foraminifera
Cercozoa
Rhodophyta
Glaucophyta
Amoebozoa
Fungi
Chytridiomycota
Blastocladiomycota
Neocallimastigomycota
Glomeromycota
Zygomycota
Ascomycota
Basidiomycota
Plant
Chlorophyta
Charophyta
Marchantiophyta
Anthocerotophyta
Moss
Lycopodiophyta
Pteridophyta
Cycadophyta
Ginkgophyta
Pinophyta
Gnetophyta
Flowering plant
Animal
Sponge
Ctenophora
Placozoa
Cnidaria
Xenacoelomorpha
Chordata
Hemichordata
Echinodermata
Chaetognatha
Kinorhyncha
Loricifera
Priapulida
Nematoda
Nematomorpha
Onychophora
Tardigrada
Arthropoda
Flatworm
Gastrotricha
Orthonectida
Dicyemida
Rotifera
Acanthocephala
Gnathostomulida
Micrognathozoa
Cycliophora
Nemertea
Phoronida
Bryozoa
Entoprocta
Brachiopoda
Mollusca
Annelida
Incertae sedis Parakaryon
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