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having well developed flight feathers and hollow bones as a weight-saving feature
It had bony armor scutes covering its neck
The seeds of the cone
which had depth ranging between 15 and 200 meters
with many small serrated teeth
Crinoid Composit Mortality Plate, 7 Species Tyrannosaurus Rex having well developed flight feathersCrinoids, also known as sea lilies, are ocean creatures that live attached to the sea floor. They have three main body parts: the stem which attaches to the sea floor, the calyx (or head) which contains the mouth parts and internal organs, and the arms which filter the food particles out of the water. Crinoids are animals despite their plant like appearance. They belong to the phylum Echinodermata, meaning "spiny skin." Other current day examples of
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