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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 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.
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 ...
The McLemore Site is located on a terrace overlooking Cobb Creek outside the town of Colony in central western Oklahoma. The first major archaeological investigation took place in 1960 under the auspices of Dr. Robert E. Bell of Oklahoma State University. Three sections of the site were excavated: an area of cache and refuse pits, an area once ...
Mushrooms, snails and plant roots: The surprising story of how your clothes got their color. Ananda Pellerin, CNN. November 13, 2023 at 9:13 AM.
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 ]
Rare in the fossil record are the homobasidiomycetes (a taxon roughly equivalent to the mushroom-producing species of the agaricomycetes). Two amber-preserved specimens provide evidence that the earliest known mushroom-forming fungi (the extinct species Archaeomarasmius legletti) appeared during the mid-Cretaceous, 90 Ma. [31] [32]
The anatomy of a common air-breathing land snail: much of this anatomy does not apply to gastropods in other clades or groups. Snails are distinguished by an anatomical process known as torsion, where the visceral mass of the animal rotates 180° to one side during development, such that the anus is situated more or less above the head. This ...