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The subphyla Tunicata and Vertebrata are in the unranked Olfactores clade, while the subphylum Cephalochordata is not. Animals in Olfactores are characterized as having a more advanced olfactory system than animals not in it. The only extinct classes shown are Placodermi and Acanthodii. Note that there are many other extinct chordate groups ...
Download QR code; Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. ... Subphylum 4. Vertebrata (= Craniata) Superclass 1.
Agnatha (/ ˈ æ ɡ n ə θ ə, æ ɡ ˈ n eɪ θ ə /; [3] from Ancient Greek ἀ-(a-) 'without' and γνάθος (gnáthos) 'jaws') is a paraphyletic infraphylum [4] of non-gnathostome vertebrates, or jawless fish, in the phylum Chordata, subphylum Vertebrata, consisting of both living (cyclostomes) and extinct (conodonts, anaspids, and ostracoderms, among others).
Branchiostoma floridae, the Florida lancelet, is a lancelet of the genus Branchiostoma.The genome of this species has been sequenced, revealing that among the chordates, the morphologically simpler tunicates are actually more closely related to vertebrates than lancelets. [4]
Artiodactyls are placental mammals belonging to the order Artiodactyla (/ ˌ ɑːr t i oʊ ˈ d æ k t ɪ l ə / AR-tee-oh-DAK-tih-lə, from Ancient Greek ἄρτιος, ártios 'even' and δάκτυλος, dáktylos 'finger, toe').
Sarcopterygii (/ ˌ s ɑːr k ɒ p t ə ˈ r ɪ dʒ i. aɪ /; from Ancient Greek σάρξ (sárx) 'flesh' and πτέρυξ (ptérux) 'wing, fin') — sometimes considered synonymous with Crossopterygii (from Ancient Greek κροσσός (krossós) 'fringe') — is a clade (traditionally a class or subclass) of vertebrate animals which includes a group of bony fish commonly referred to as lobe ...
Paraconodonts (Paraconodontida) are an extinct order of probable chordates, closely related or ancestral to euconodonts (true conodonts). [1] [2] [3] The order contains the superfamily Furnishinacea, itself containing the families Westergaardodinidae and Furnishinidae.
Boreoeutheria (/ b oʊ ˌ r iː oʊ j uː ˈ θ ɛr i ə /, "northern eutherians") is a magnorder of placental mammals that groups together superorders Euarchontoglires and Laurasiatheria.