Climatiiformes

Climatiiformes Temporal range: 418–298 Ma PreꞒ Ꞓ O S D C P T J K Pg N Silurian - Carboniferous [1]
An artist's restoration of Climatius.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	†Acanthodii
Order:	†Climatiiformes
Suborders & families
Climatiida ?Gyracanthidae Climatiidae Diplacanthida Culmacanthidae Tetanopsyridae Diplacanthidae

The Climatiiformes is an order of extinct fish belonging to the class Acanthodii. Like most other "spiny sharks", the Climatiiformes had sharp spines. These animals were often fairly small in size and lived from the Late Silurian to the Early Carboniferous period. The type genus is Climatius. The order used to be subdivided into the suborders Climatiida and Diplacanthida, but subsequently Diplacanthida has been elevated to a separate order, the Diplacanthiformes.^[2] The Diplacanthiformes take their name from Diplacanthus, first described by Agassiz in 1843. Family Gyracanthidae is sometimes rejected from this order.^[3]

References

Allaby, Michael (17 March 2014). "Climatiiformes ( Spiny Sharks; ; Class Acanthodii) ". Dominant Social Paradigm - Oxford Reference. Oxford University Press. Retrieved 13 September 2019.

Sullivan, R. M.; Lucas, S. G. (29 January 1999). "Web of Science [V.5.30] - Biological Abstracts Full Record". web of Knowledge. Retrieved 13 September 2019.

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Evolution of fish

• Fish
• Timeline of fish evolution

Forerunners

• Basal member
  • †Pikaia
• Cephalochordate
  • †Cathaymyrus
  • Lancelet
• Olfactores
  • †Haikouella
  • Tunicate
  • †Myllokunmingiidae? (†Haikouichthys, †Myllokunmingia)
  • †Zhongxiniscus?

Jawless fish

Cyclostomata	Hagfish Hyperoartia Lamprey
†Conodonts	†Protoconodonta? †Paraconodontida †Conodonta
†Ostracoderms	†Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci

Jawed fish

†Placoderms	†Antiarchi †Arthrodira †Brindabellaspida †Petalichthyida †Phyllolepida †Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida?
†Acanthodii	†Acanthodiformes †"Climatiiformes" †Diplacanthiformes †Ischnacanthiformes
Cartilaginous	Elasmobranchii †Ctenacanthiformes †Hybodontiformes †Phoebodontiformes †Xenacanthida Ray Shark Holocephali †Eugeneodontida †Iniopterygiformes †Petalodontiformes †Symmoriiformes Chimaera
Bony	Lobe-finned †Onychodontiformes Coelacanth Rhipidistia †Porolepiformes Lungfish Tetrapodomorpha Ray-finned †"Palaeonisciformes" Cladistia Polypteriformes Chondrostei Acipenseriformes Neopterygii †Pycnodontiformes Halecomorphi Ginglymodi Teleost

Lists

• Lists of prehistoric fish
  • spiny sharks
  • placoderms
  • cartilaginous
  • bony
  • lobe-finned
• List of transitional fossils

Related

• Prehistoric life
• Transitional fossils
• Vertebrate paleontology

† extinct

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