Ammonites were incredible sea creatures that first entered the fossil record 400 million years ago. They survived several mass extinction events, including the Permian–Triassic "Great Dying" which wiped out 96% of all marine species. They finally succumbed during the Cretaceous-Paleogene extinction event 66 million years ago, which also wiped out the dinosaurs. The size of ammonite shells range from sub-centimeter dwarf species to giants nearly three meters in diameter. Most iconic shells exhibit a nearly perfect logarithmic spiral. This t-shirt celebrates the unique mathematical beauty of these animals. Show off your love for one of Earth's coolest fossils! Note: Currently, this shirt is only available for US Shipping. This t-shirt is everything you've dreamed of and more. It feels soft and lightweight, with the right amount of stretch. It's comfortable and flattering for all. • 100% combed and ring-spun cotton (Heather colors contain polyester)• Fabric weight: 4.2 oz./yd.² (142 g/m²)• Pre-shrunk fabric• Side-seamed construction• Shoulder-to-shoulder taping• Blank product sourced from Nicaragua, Mexico, Honduras, or the USNote: This product is printed on demand for you when you place an order. It will ship separately from other items in your order. Fulfillment time is between 2-5 business days and shipping time is estimated between 4-21 business days.
