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Oklahoma was a terrestrial environment for most of the ensuing Mesozoic era. [3] The Late Triassic Dockum Group of western Oklahoma preserved remains of archosaurs and temnospondyls, although its fossil record is restricted to a narrow region of the panhandle and is far sparser than the equivalent records in Texas, New Mexico, and Arizona. [98]
This list of the prehistoric life of Oklahoma contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of ...
This list of the Paleozoic life of Oklahoma contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Oklahoma and are between 541 and 252.17 million years of age.
Madder, cochineal, Mauveine; these words may be unfamiliar but they’re the names of dyes made from a plant, an insect and a chemical that have shaped our world.
The phylogeny (evolutionary "family tree") of molluscs is a controversial subject. In addition to the debates about whether Kimberella and any of the " halwaxiids " were molluscs or closely related to molluscs, [ 5 ] [ 6 ] [ 8 ] [ 9 ] debates arise about the relationships between the classes of living molluscs. [ 7 ]
This is a list of malacologists, scientists who study mollusks, such as snails, clams, cephalopods, and others, in a discipline named malacology. People who specialize in studying only or primarily the shells of mollusks are sometimes called conchologists instead of malacologists.
Palaeopropithecidae, a family of extinct lemurs, which are most likely related to the family Indriidae due to their morphology, have many similarities to sloths due to their appearance and behaviour, such as long arms, hooked fingers, and slow moving, giving them the nickname "sloth-lemurs".
The ancestors of coleoids (including most modern cephalopods) and the ancestors of the modern nautilus, had diverged by the Floian Age of the Early Ordovician Period, over 470 million years ago. We know this because the orthocerids were the first known representatives of the neocephalopoda, [ 40 ] were ultimately the ancestors of ammonoids and ...