Craniate with well-defined heads, thus excluding members of the chordate subphyla Tunicata (tunicates) and Cephalochordata (lancelets), but including Myxini, which have cartilaginous skulls and tooth-like structures composed of keratin. Craniata also includes all lampreys and armoured jawless fishes, armoured fish, sharks, skates, and rays, and teleostomians: spiny sharks, bony fish, lissamphibians, temnospondyls and protoreptiles, sauropsids and mammals. The craniate head consists of a brain, sense organs, including eyes, and a skull. In addition to distinct crania (sing. "cranium"), craniates possess many derived characteristics, which have allowed for more complexity to follow. Molecular-genetic analysis of craniates reveals that, compared to less complex
Where Crocodiles have Wings Where Crocodiles have Wings Where Crocodiles have Wings is a 2005 children's picture book by Patricia McKissack. It is a rhyming story where imaginative animals occur. Criticism of "Where Crocodiles have Wings" came from the "School Library Journal" that wrote "Unfortunately, the world that this book depicts is one in which bouncy rhyme schemes are picked up and inexplicably dropped in the space of a single page, and in which meter is halting, jolting, and inconsistent. Also, some of the busy, cut-paper collage illustrations do not depict what is described in the text. Stick with McKissack's more successful titles, such