A previously unknown family, genus and species of microinvertebrates has been found in amber from the Dominican Republic. Nicknamed ‘mold pigs,’ these tiny creatures lived some 30 million years ago (Paleogene period) and had features of both mites and tardigrades. A mold pig (Sialomorpha dominicana). Image credit: George Poinar Jr. “There is no extant group that the mold pigs fit into, and we have no knowledge of any of their descendants living...
