In a few cases, amber has preserved spiders' egg sacs and webs, occasionally with prey attached; the oldest fossil web found so far is 100 million years old. Earlier spider fossils come from a few lagerstÃ¤tten, places where conditions were exceptionally suited to preserving fairly soft tissues.
Definition of METATARSAL. : of, relating to, or being the part of the human foot or of the hind foot in quadrupeds between the tarsus and the phalanges that in humans comprises five elongated bones which form the front of the instep and ball of the foot. See metatarsal defined for kids.ADVERTISEMENT. of, relating to, or being the part of the human foot or of the hind foot in quadrupeds between the tarsus and the phalanges that in humans comprises five elongated bones which form the front of the instep and ball of the foot. See metatarsal defined for kids. ADVERTISEMENT.
Here's a boring bit that you can skip if you know about hand or foot bones: in humans metatarsals and metacarpals are in the hands (metacarpals) and feet (metatarsals). They go between the wrist or ankle and the knuckles (or first toe joint).ut you don't need to worry about the names because my point is that in deer the bones are joined together and the deer metatarsal or metacarpals are much longer. For example here is one of the young red deer hinds at Titus Well running along: ...and you might think the foot bones are all in the hoof, but they aren't.