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.
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.
invertebrate - has exoskeleton
Lower chordates refer to a group of simple, marine invertebrate animals that belong to the phylum Chordata but do not possess a backbone or vertebral column. Examples of lower chordates include tunicates, lancelets, and hagfish. They are considered primitive chordates with some characteristics of vertebrates.