Panderichthys is a 90-130 cm long fish from the Late Devonian period . It have a large tetrapod-like head. Panderichthys exhibits features transitional between lobe-finned fishes and early tetrapods. Image File history File links Download high resolution version (959x272, 17 KB) Summary i draw it with macromedia flash 29 oct 2005 Mateus Zica Mateus Zica 03:33, 30 October 2005 (UTC) Licensing I, the creator of this work, hereby grant the permission to copy, distribute and/or modify this... Image File history File links Download high resolution version (959x272, 17 KB) Summary i draw it with macromedia flash 29 oct 2005 Mateus Zica Mateus Zica 03:33, 30 October 2005 (UTC) Licensing I, the creator of this work, hereby grant the permission to copy, distribute and/or modify this... Groups Conodonta Hyperoartia Petromyzontidae (lampreys) Pteraspidomorphi (early jawless fish) Thelodonti Anaspida Cephalaspidomorphi (early jawless fish) Galeaspida Pituriaspida Osteostraci Gnathostomata (jawed vertebrates) Placodermi Chondrichthyes (cartilaginous fish) Acanthodii Osteichthyes (bony fish) Actinopterygii (ray-finned fish) Sarcopterygii (lobe-finned fish) Actinistia (coelacanths) Dipnoi (lungfish) A fish is a poikilothermic (cold-blooded) water-dwelling... The Devonian is a major division of the geologic timescale that extends from the end of the Silurian period (360 million years ago (mya)) to the beginning of the Mississippian subperiod of the Carboniferous (408. ... Groups Amphibia Elginerpetontidae Acanthostegidae Ichthyostegidae Whatcheeriidae Crassigyrinidae Baphetidae Colosteidae (Batrachomorpha) Temnospondyli Lepospondyli Reptiliomorpha Amniota Sauropsida/Reptilia Aves (Birds) Synapsida Mammalia Tetrapods (Greek tetrapoda, four-legged) are the most successful body form; a vertebrate animal having four feet, legs or leglike appendages. ... A human head In anatomy, the head of an animal is the anterior part (from anatomical position) that comprises the mouth, the brain and various sensory organs (e. ... Subclasses Coelacanthimorpha - Coelacanths Dipnoi - Lungfishes Tetrapoda Sarcopterygii is traditionally the class of lobe-finned fishes, consisting of lungfish and coelacanths. ... Classes Synapsida Sauropsida Amphibia A tetrapod (Greek tetrapoda, four-legged) is a vertebrate animal having four feet, legs or leglike appendages. ...
Panderichthys is a 90–130 cm long fish from the Late Devonian period (Frasnian epoch) of Latvia.
The most notable characteristic of Panderichthys was its spiracle, a vertical tube used to breathe water through the top of its head, while its body was submerged in mud.
This spiracle is a transitional organ that led, through evolution, to the development of the stirrup bone, one of the three bones (stirrup, hammer, and anvil) in the human middle ear.
Unlike all fish but like the tetrapods, the Panderichthys have lost the dorsal and anal fins, leaving 4 fins in the place where legs would be in the Tetrapods.(Ahlberg and Milner, p.508).
This is not a Panderichthys, but it is a related lobe-finned Devonian fish out of my personal collection.
But Panderichthys also had external nostrils which were in the same position as those of the early tetrapods.
Feeds |
Contact