What is this texture?
As a kid I would accompany my older brother on fossil collecting trips. Most any hill in Kansas with a road cut-out would have exposed limestone. Limestone is made from accumulated sea creatures and plants. I found a variety of crinoids. I only found the harder stem pieces. The crinoid is an animal which consist of a stem which anchors itself to the ocean floor. At the end of the stem is a cup-like calyx which contains the mouth and digestive system. Attached to the calyx are arms which sway to and fro with the ocean currents to gather food. The number of arms come in multiples of five. Crinoids date back 500 millions years. Due to the fact that they look like flowers, they are commonly referred to as sea lilies. The starfish is a descendant of the crinoids.