Global Information Lookup Global Information

Cheirolepis information


For a taxonomic synonym of a genus of plants, see Centaurea.

Cheirolepis
Temporal range: Middle Devonian to Late Devonian
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: †Cheirolepidiformes
Kazantzeva-Selezneva, 1977[2]
Family: †Cheirolepididae
Pander, 1860[1]
Genus: †Cheirolepis
Agassiz, 1835
Type species
†Cheirolepis trailli
Agassiz, 1835
Other species

See text

Cheirolepis (from Greek: χείρ kheír, 'hand' and Greek: λεπίς lepis 'scale')[3] is an extinct genus of marine and freshwater ray-finned fish that lived in the Devonian period of Europe and North America. It is the only genus yet known within the family Cheirolepididae and the order Cheirolepidiformes. It was among the most basal of the Devonian actinopterygians and is considered the first to possess the "standard" dermal cranial bones seen in later actinopterygians.

Cheirolepis was a predatory freshwater and estuarine animal about 55 centimetres (22 in) long. It had a streamlined body with small, triangular ganoid scales similar to those of the Acanthodii. These scales had a basic structure typical of many early osteichthyans, with a superficial of ganoine overlying dentine, and a basal plate of bone.[4] Cheirolepis had well-developed fins which gave it speed and stability, and was probably an active predator. Based on the size of its eyes, it hunted by sight. Cheirolepis's jaws, lined with sharp teeth, could be opened very wide, allowing it to swallow prey two thirds of its own size.[5]

  1. ^ Cheirolepidae fossiilid.info (in Finnish)
  2. ^ Cheirolepiformes fossiilid.info (in Finnish)
  3. ^ Roberts, George (1839). An etymological and explanatory dictionary of the terms and language of geology. London: Longman, Orme, Brown, Green, & Longmans. p. 29. Retrieved 29 December 2021.
  4. ^ Zylberberg, L.; Meunier, F. J.; Laurin, M. (2016). "A microanatomical and histological study of the postcranial dermal skeleton of the Devonian actinopterygian Cheirolepis canadensis". Acta Palaeontologica Polonica. 61 (2): 363–376. doi:10.4202/app.00161.2015.
  5. ^ Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 34. ISBN 1-84028-152-9.

and 29 Related for: Cheirolepis information

Request time (Page generated in 0.5482 seconds.)

Cheirolepis

Last Update:

Cheirolepis (from Greek: χείρ kheír, 'hand' and Greek: λεπίς lepis 'scale') is an extinct genus of marine and freshwater ray-finned fish that lived in...

Word Count : 615

Cheirolepidiaceae

Last Update:

valid name for the family, due to nomenclatural issues with the original Cheirolepis genus, which is a junior homonym of a member of Asteraceae, with Cheirolepidium...

Word Count : 833

Vertebrate

Last Update:

The early ray-fin Cheirolepis canadensis from the Devonian period...

Word Count : 7045

Actinopterygii

Last Update:

Fossil of the Devonian †cheirolepidiform †Cheirolepis canadensis...

Word Count : 3769

Hirmeriella

Last Update:

been known as Pagiophyllum. Hirmeriella is also known by the pseudonym Cheirolepis muensteri. Hirmeriella muensteri may have grown in dry, extreme conditions...

Word Count : 252

Fish fin

Last Update:

usually composed of bone, but those of early osteichthyans - such as Cheirolepis - also had dentine and enamel. They are segmented and appear as a series...

Word Count : 7622

Guiyu oneiros

Last Update:

Cheirolepis Other Actinopterygii...

Word Count : 785

Dentin

Last Update:

study of the postcranial dermal skeleton of the Devonian actinopterygian Cheirolepis canadensis". Acta Palaeontologica Polonica. doi:10.4202/app.00161.2015...

Word Count : 3607

The Age of Reptiles

Last Update:

Devonian Cheirolepis Eusthenopteron Eospermatopteris Calamites Carboniferous Eogyrinus Diplovertebron Meganeuron Eryops Lepidodendron Sigillaria Permian...

Word Count : 788

Tooth enamel

Last Update:

study of the postcranial dermal skeleton of the Devonian actinopterygian Cheirolepis canadensis". Acta Palaeontologica Polonica. doi:10.4202/app.00161.2015...

Word Count : 6229

Centaurea

Last Update:

Carbenia Adans. Cardosanctus Bubani Cestrinus Cass. Chartolepis Cass. Cheirolepis Boiss. Chrysopappus Takht. Cistrum Hill Cnicus L. × Colycea Fern.Casas...

Word Count : 3848

Fish scale

Last Update:

being found for example on the scales of stem group actinopteryigian Cheirolepis. While often considered a synapomorphic character of ray-finned fishes...

Word Count : 7825

Ganoine

Last Update:

being found for example on the scales of stem group actinopteryigian Cheirolepis. While often considered a synapomorphic character of ray-finned fishes...

Word Count : 354

Cosmolepis

Last Update:

†Austelliscus †Cheirolepis †Cuneognathus †Dialipina? †Kentuckia †Krasnoyarichthys †Ligulalepis? †Limnomis †Meemannia †Moythomasia †Naxilepis? †Orvikuina...

Word Count : 326

Cornuboniscus

Last Update:

†Austelliscus †Cheirolepis †Cuneognathus †Dialipina? †Kentuckia †Krasnoyarichthys †Ligulalepis? †Limnomis †Meemannia †Moythomasia †Naxilepis? †Orvikuina...

Word Count : 528

Kelliaichthys

Last Update:

†Austelliscus †Cheirolepis †Cuneognathus †Dialipina? †Kentuckia †Krasnoyarichthys †Ligulalepis? †Limnomis †Meemannia †Moythomasia †Naxilepis? †Orvikuina...

Word Count : 149

Timeline of fish evolution

Last Update:

consisting of sharks, rays and chimaeras, appeared about 395 Ma. Cheirolepis Cheirolepis (hand fin) was a genus of ray-finned fishes. It was among the most...

Word Count : 6285

Birgeria

Last Update:

†Austelliscus †Cheirolepis †Cuneognathus †Dialipina? †Kentuckia †Krasnoyarichthys †Ligulalepis? †Limnomis †Meemannia †Moythomasia †Naxilepis? †Orvikuina...

Word Count : 1585

Escuminac Formation

Last Update:

thin sectioning; this was done, among others, for the actinopterygian Cheirolepis, the actinistian Miguashaia and the tetrapodomorph Euthenopteron. The...

Word Count : 714

Brazilichthys

Last Update:

†Austelliscus †Cheirolepis †Cuneognathus †Dialipina? †Kentuckia †Krasnoyarichthys †Ligulalepis? †Limnomis †Meemannia †Moythomasia †Naxilepis? †Orvikuina...

Word Count : 240

Yelangichthys

Last Update:

†Austelliscus †Cheirolepis †Cuneognathus †Dialipina? †Kentuckia †Krasnoyarichthys †Ligulalepis? †Limnomis †Meemannia †Moythomasia †Naxilepis? †Orvikuina...

Word Count : 158

Brachydegma

Last Update:

†Austelliscus †Cheirolepis †Cuneognathus †Dialipina? †Kentuckia †Krasnoyarichthys †Ligulalepis? †Limnomis †Meemannia †Moythomasia †Naxilepis? †Orvikuina...

Word Count : 309

Pygopterus

Last Update:

†Austelliscus †Cheirolepis †Cuneognathus †Dialipina? †Kentuckia †Krasnoyarichthys †Ligulalepis? †Limnomis †Meemannia †Moythomasia †Naxilepis? †Orvikuina...

Word Count : 273

Challaia

Last Update:

†Austelliscus †Cheirolepis †Cuneognathus †Dialipina? †Kentuckia †Krasnoyarichthys †Ligulalepis? †Limnomis †Meemannia †Moythomasia †Naxilepis? †Orvikuina...

Word Count : 304

Coccocephalus

Last Update:

†Austelliscus †Cheirolepis †Cuneognathus †Dialipina? †Kentuckia †Krasnoyarichthys †Ligulalepis? †Limnomis †Meemannia †Moythomasia †Naxilepis? †Orvikuina...

Word Count : 674

Tanyrhinichthys

Last Update:

†Austelliscus †Cheirolepis †Cuneognathus †Dialipina? †Kentuckia †Krasnoyarichthys †Ligulalepis? †Limnomis †Meemannia †Moythomasia †Naxilepis? †Orvikuina...

Word Count : 153

Mamulichthys

Last Update:

†Austelliscus †Cheirolepis †Cuneognathus †Dialipina? †Kentuckia †Krasnoyarichthys †Ligulalepis? †Limnomis †Meemannia †Moythomasia †Naxilepis? †Orvikuina...

Word Count : 281

Tarrasiiformes

Last Update:

†Austelliscus †Cheirolepis †Cuneognathus †Dialipina? †Kentuckia †Krasnoyarichthys †Ligulalepis? †Limnomis †Meemannia †Moythomasia †Naxilepis? †Orvikuina...

Word Count : 273

Bluefieldius

Last Update:

†Austelliscus †Cheirolepis †Cuneognathus †Dialipina? †Kentuckia †Krasnoyarichthys †Ligulalepis? †Limnomis †Meemannia †Moythomasia †Naxilepis? †Orvikuina...

Word Count : 128
PDF Search Engine © AllGlobal.net