WebAug 7, 2024 · Many jawless fish also had a second characteristic – they have bony armored plates. Examples of these fish include the Astraspis and the Arandaspis. … WebIn a sense, placoderms represent an "early experiment" in the evolution of jawed fish; they radiated into a number of body shapes and ecological niches, which were occupied by other fish lineages after the extinction of …
Agnatha or Jawless Fish: Everything You Need to …
WebJawless fishes (Agnatha) are craniates representing an ancient vertebrate lineage that arose over 550 million years ago. In the past, hagfishes and lampreys were sometimes recognized as separate clades within the … WebResources. Lampreys and hagfishes are unusual, jawless fish that comprise the orders Myxiniformes (hagfishes) and Petromysoniformes (lampreys). There are approximately 40 species of lampreys and approximately 35 species of hagfishes and slime hags. Lampreys and hagfishes lack the scales typical of most fish, and are covered with a slimy mucous. cutler bay middle school supply list
Anatomy of a Fish - University of Florida
WebThis fish has a large flattened body, shaped almost like a giant guitar pick. The pointed end of the body is the front, and the wider end is the tail. It has small pectoral fins, but its dorsal and anal fins are very long and narrow. These fins make the sunfish as tall as it is long. Interesting Facts About the Sunfish WebThe sailfishis one or two speciesof marine fishin the genusIstiophorus, which belong to the familyIstiophoridae(marlins). They are predominantly blue to gray in colour and have a characteristically large dorsal finknown as the sail, which often stretches the … WebThe animals had canteen-shaped body armor and had large branchial plates that extended out and curved downward in a triangular shape, very similar to those of the pycnosteids. An element of the median oral plates … cutler bay middle website