Acanthodii or acanthodians is an extinct class of gnathostomes (jawed fishes). They are currently considered to represent a paraphyletic grade of various...
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lampreys) Gnathostomata or jawed vertebrates, which include: †Placodermi †Acanthodii Chondrichthyes or cartilaginous fish, (sharks, rays and ratfish) Osteichthyes...
78 KB (7,094 words) - 04:02, 7 July 2024
Females attain a larger size than males. The largest of the now-extinct Acanthodii was Xylacanthus grandis, an ischnacanthiform based on a ~35 cm (14 in)...
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(chimaeras and extinct relatives) Class Placodermi (armoured fish) † Class Acanthodii ("spiny sharks", sometimes classified under Actinopterygii) † Superclass...
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extinct (armored gnathostomes) └Eugnathostomata (true jawed vertebrates) ├─Acanthodii (stem cartilaginous fish) └─Chondrichthyes (true cartilaginous fish) ├─Holocephali...
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Tetanopsyrus is a genus of Acanthodii. There are two species of this genus that lived through the lower Devonian (Lochkovian), some 416 to 359 million...
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redescription and reinterpretation of Gyracanthides murrayi Woodward 1906 (Acanthodii, Gyracanthidae) from the Lower Carboniferous of the Mansfield Basin, Victoria...
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List of chordate orders (section Class Acanthodii †)
This article contains a list of all of the classes and orders that are located in the Phylum Chordata. Order Amphioxiformes Order Enterogona Order Pleurogona...
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gnathostomes) Class Chondrichthyes (cartilaginous fish; 900+ species) Class †Acanthodii (Paleozoic "spiny sharks"; paraphyletic in relation to Chondrichthyes)...
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†Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida? †Acanthodii †Acanthodiformes †"Climatiiformes" †Diplacanthiformes †Ischnacanthiformes...
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†Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida? †Acanthodii †Acanthodiformes †"Climatiiformes" †Diplacanthiformes †Ischnacanthiformes...
97 KB (10,118 words) - 18:57, 5 July 2024
fish known as placoderms, which evolved from the ostracoderms; and the Acanthodii (or spiny sharks). The jawed fish that are still extant in modern days...
47 KB (4,515 words) - 18:06, 7 July 2024
Clade: Eugnathostomata Clade: Teleostomi C. L. Bonaparte, 1836 Subgroups †Acanthodii Euteleostomi ("Osteichthyes") Actinopterygii (majority of all fish) Sarcopterygii...
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†Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida? †Acanthodii †Acanthodiformes †"Climatiiformes" †Diplacanthiformes †Ischnacanthiformes...
48 KB (3,773 words) - 12:34, 29 July 2024
updated cladogram (Zhu et al., 2016): Paleontology portal Fish portal Acanthodii List of placoderms Ostracoderm Chondrichthyes Entelognathus If paraphyletic...
42 KB (4,325 words) - 18:29, 10 August 2024
Gavin F. (2008). "Promesacanthus eppleri n. gen., n. sp., a mesacanthid (Acanthodii, Acanthodiformes) from the Lower Devonian of northern Canada" (PDF). Geodiversitas...
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List of acanthodian genera (category Acanthodii)
comprehensive listing of all genera that have ever been included in the subclass Acanthodii, excluding purely vernacular terms. The list includes all commonly accepted...
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during evolution (e.g. additional dorsal fins, adipose fin). In some †Acanthodii ("spiny sharks"), one or more pairs of "intermediate" or "prepelvic" spines...
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†Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida? †Acanthodii †Acanthodiformes †"Climatiiformes" †Diplacanthiformes †Ischnacanthiformes...
63 KB (6,473 words) - 11:38, 19 July 2024
Cyclostomata, which includes lampreys and hagfishes. Paleontology portal Acanthodii Placoderm Benton, Michael (2009) Vertebrate Palaeontology Edition 3, page...
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†Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida? †Acanthodii †Acanthodiformes †"Climatiiformes" †Diplacanthiformes †Ischnacanthiformes...
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Podoliacanthus is an extinct genus of Acanthodii ("spiky sharks") which existed in what is now Greenland and Ukraine during the early Devonian period....
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Waterloo Farm lagerstätte (section Acanthodii)
den; Newman, Michael; Davidson, Robert (2016). "The diplacanthid fishes (Acanthodii, Diplacanthiformes, Diplacanthidae) from the Middle Devonian of Scotland"...
37 KB (3,324 words) - 11:51, 18 July 2024
vertebrates of northern France and Belgium: Part II - Chondrichthyes, Acanthodii, Actinopterygii (Uppermost Silurian to Carboniferous)". Geobios. 28 (1889–1890):...
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†Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida? †Acanthodii †Acanthodiformes †"Climatiiformes" †Diplacanthiformes †Ischnacanthiformes...
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†Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida? †Acanthodii †Acanthodiformes †"Climatiiformes" †Diplacanthiformes †Ischnacanthiformes...
44 KB (4,099 words) - 19:08, 28 May 2024
†Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida? †Acanthodii †Acanthodiformes †"Climatiiformes" †Diplacanthiformes †Ischnacanthiformes...
35 KB (3,882 words) - 05:36, 24 June 2024
†Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida? †Acanthodii †Acanthodiformes †"Climatiiformes" †Diplacanthiformes †Ischnacanthiformes...
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unterpermischen Acanthodier (Acanthodii: Pisces) des südwestdeutschen Saar-Nahe-Beckens [Revision of the Early Permian acanthodians (Acanthodii : Pisces ) from the...
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