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Protacanthopterygii

 

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Protacanthopterygii



 
 
Protacanthopterygii is the taxon
Taxon

A taxon or taxonomic unit is a name designating an organism or a group of organisms. In biological nomenclature according to Carl Linnaeus, a taxon is assigned a taxonomic rank and can be placed at a particular level in a systematic hierarchy reflecting evolutionary relationships....
 superorder of bony ray-finned fish
Fish

A fish is any marine biology vertebrate animal that is typically ectothermic , covered with scale , and equipped with two sets of paired fins and several unpaired fins....
.

Protacanthopterygii is composed of primitive teleosts. Their common fish anatomy
Fish anatomy

The anatomy of fish is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than air does....
 usually include: lack of specialization
Generalist and specialist species

A generalist species is able to thrive in a wide variety of environmental conditions and can make use of a variety of different Natural resource ....
; greater than 24 vertebrae; adipose fin; mesocoracoid bone
Mesocoracoid

Mesocoracoid is a bone of the pectoral arch or shoulder girdle....
; glossohyal
Glossohyal

Glossohyal is the term used in fish anatomy for the tongue and hyoid bone. It is the Tongue plate, which is a dermal toothed bone that covers or fuses with the basihyal....
 teeth; non-protrusible upper jaw
Maxilla

The maxilla is a fusion of two bones along the palate fissure that form the upper jaw. This is similar to the mandible, which is also a fusion of two halves at the mental symphysis....
 ; proethmoid and several perichondral
Perichondral

Perichondral is the layer of fibrous connective tissue that envelops cartilages ....
 ethmoid bone
Ethmoid bone

The ethmoid bone is a bone in the skull that separates the nasal cavity from the brain. As such, it is located at the roof of the nose, between the two Orbit s....
s commissural fibers
Commissural fibers

The commissure fibers or transverse fibers connect the two Cerebral hemispheres of the brain. They include:* the transverse fibers of the corpus callosum...
; one supraorbital foramen
Supraorbital foramen

The supraorbital foramen is a bony elongated path located above the Orbit and under the forehead. The supraorbital foramen lies directly under the eyebrow....
 and no gular
Gular

Gular may refer to:* Gular scales in reptiles.* Gular fold in lizards.* Gular skin in birds....
 plate.








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Encyclopedia


Protacanthopterygii is the taxon
Taxon

A taxon or taxonomic unit is a name designating an organism or a group of organisms. In biological nomenclature according to Carl Linnaeus, a taxon is assigned a taxonomic rank and can be placed at a particular level in a systematic hierarchy reflecting evolutionary relationships....
 superorder of bony ray-finned fish
Fish

A fish is any marine biology vertebrate animal that is typically ectothermic , covered with scale , and equipped with two sets of paired fins and several unpaired fins....
.

Protacanthopterygii is composed of primitive teleosts. Their common fish anatomy
Fish anatomy

The anatomy of fish is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than air does....
 usually include: lack of specialization
Generalist and specialist species

A generalist species is able to thrive in a wide variety of environmental conditions and can make use of a variety of different Natural resource ....
; greater than 24 vertebrae; adipose fin; mesocoracoid bone
Mesocoracoid

Mesocoracoid is a bone of the pectoral arch or shoulder girdle....
; glossohyal
Glossohyal

Glossohyal is the term used in fish anatomy for the tongue and hyoid bone. It is the Tongue plate, which is a dermal toothed bone that covers or fuses with the basihyal....
 teeth; non-protrusible upper jaw
Maxilla

The maxilla is a fusion of two bones along the palate fissure that form the upper jaw. This is similar to the mandible, which is also a fusion of two halves at the mental symphysis....
 ; proethmoid and several perichondral
Perichondral

Perichondral is the layer of fibrous connective tissue that envelops cartilages ....
 ethmoid bone
Ethmoid bone

The ethmoid bone is a bone in the skull that separates the nasal cavity from the brain. As such, it is located at the roof of the nose, between the two Orbit s....
s commissural fibers
Commissural fibers

The commissure fibers or transverse fibers connect the two Cerebral hemispheres of the brain. They include:* the transverse fibers of the corpus callosum...
; one supraorbital foramen
Supraorbital foramen

The supraorbital foramen is a bony elongated path located above the Orbit and under the forehead. The supraorbital foramen lies directly under the eyebrow....
 and no gular
Gular

Gular may refer to:* Gular scales in reptiles.* Gular fold in lizards.* Gular skin in birds....
 plate.

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