Yes. So are lancelets. Both are invertebrates under phylum Chordata.
Tunicates, (Sea squirts, Sea tulips) should adequately meet your desire for strange!
No, the phylum Chordata includes both vertebrate and invertebrate animals. Vertebrates are a subphylum within Chordata and have a backbone or spinal column, whereas invertebrate chordates, like tunicates and lancelets, lack a backbone.
Phylum Chordata simply consists of all animals that, at least in their embryonic phase, have a structure called the notochord. In the vertebrates, the notochord develops into the vertebrae, i.e. the backbone. Some primitive chordates, though, including the tunicates, lancelets, and hagfish, do not ever develop vertebrae, although they have/have had a notochord. Hence, Subphyla Urochordata and Cephalochordata, and Class Myxini are invertebrate chordates.
the hawsbill and leatherback sea turtle eats tunicates
The scientific name for tunicates is Phylum Chordata, Subphylum Tunicata.
Tunicates are part of the phylum Chordata, and there are as many of 2,150 species of them. Sea stars, flatworms, and snails are some of the predators of tunicates.
chordates
Tunicates are invertebrate marine animals. These animals have very simplistic or lack an excretory systems and must eliminate nitrogenous waste through the diffusion of ammonia through their tissues. A sea squirt is a tunicate.
There are approximately 65,000 species in the Chordata phylum, which includes vertebrates like mammals, birds, reptiles, amphibians, and fish, as well as some invertebrate species like tunicates and lancelets.
invertebrate - has exoskeleton
I can think of 8: - Porifera (sponges) - Cnidaria (jellyfish and anemones) - Mollusca (snails, squids) - Platyhelminthes (flatworms) - Nematoda (roundworms) - Annelida (ringworms, leeches) - Arthropoda (insects, arachnids, crustaceans and some other bits) - Echinodermata (starfish, sea urchins and cucumbers) - Chordata (also includes the vertebrates, but the invertebrate bits are Amphioxus and the tunicates) Anyone got more? I think I got them all.
Adult tunicates exhibit chordate affinities through the presence of a notochord in their larval stage, which is a defining characteristic of chordates. In larval tunicates, the notochord is prominent, along with a dorsal nerve cord and pharyngeal slits, which are features shared with other chordates. Although adult tunicates lose many of these traits and become sessile, they retain a structure called the tunic, which reflects their evolutionary connection to the chordate lineage. Overall, the larval form displays the key chordate features, while the adult form highlights the evolutionary adaptations of tunicates.