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The bones were the disarticulated remains of bears, deer, mice, and a kind of eastern wood rat not currently found in the area of the fossil discovery. [17] More recently, in 1989, the Pennsylvanian sea lily, Delocrinus missouriensis, was designated the Missouri state fossil. In 2004, Hypsibema missouriensis was designated the state dinosaur ...
In 2024, Flannery et al. described Opalios splendens as a new genus and species of early monotreme based on these fossil remains. They erected the new monotypic family Opalionidae within the Ornithorhynchoidea —the superfamily also containing modern echidnas and platypus —to house Opalios due to its similarity to both of these extant lineages.
Ornithorhynchoidea is a superfamily of mammals containing the only living monotremes, the platypus and the echidnas, as well as their closest fossil relatives, to the exclusion of more primitive fossil monotremes of uncertain affinity.
This list of the Paleozoic life of Missouri contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Missouri and are between 538.8 and 252.17 million years of age. There is no Permian age rocks on the surface in Missouri, so beware of any fossils identified as such in the state.
Fossil of the Middle-Late Ordovician giant trilobite Isotelus. †Isotelus †Isotelus gigas †Isotelus maximus †Jeffersonia †Kendallina †Kirengella †Kirkella – type locality for genus †Lepidophyllum †Lingula †Liroceras †Matthevia †Maximites †Meristella †Meristina †Metacoceras †Murchisonia – tentative report
This article contains a list of fossil-bearing stratigraphic units in the state of Missouri, U.S. Sites. Group or Formation ... Kansas City Group/Cherryville Shale:
Researchers in Russia on Monday unveiled the remarkably well-preserved remains of a 50,000-year-old female baby mammoth found in thawing permafrost in the Yakutia region of Siberia.
The Riverbluff Cave is a paleontological site discovered in the United States, near Springfield, Missouri.The entrance is filled with stalactites, stalagmites and columns. . The cave is about 830,000 years old (making it the oldest known fossil cave site in the US [1]) and 610 m long, featuring Pleistocene fossils, notably of the short-faced bear (Artcodus simus) the largest bear species on ...