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Hylonomus (/ h aɪ ˈ l ɒ n əm ə s /; hylo-"forest" + nomos "dweller") [2] is an extinct genus of reptile that lived during the Bashkirian stage of the Late Carboniferous.It is the earliest known crown group amniote and the oldest known unquestionable reptile, with the only known species being Hylonomus lyelli.
Obligate herbivory, on the other hand, has only evolved 10 times in living, non-liolaemid lizards (nearly 7,700 species). Though, one clade seems to be an exception to this pattern of infrequently developed herbivory. A 2004 study investigated a unique group of South American lizards called the Liolaemidae. The authors of this study found that ...
The President, located in Sequoia National Park, California, is the oldest known living giant sequoia (Sequoiadendron giganteum) at approximately 3,200 years of age. [ 57 ] Yareta is a tiny flowering plant in the family Apiaceae native to South America, occurring in the Puna grasslands of the Andes in Peru , Bolivia , northern Chile, and ...
These tracks are attributed to Hylonomus, the oldest unquestionable reptile known. [39] It was a small, lizard-like animal, about 20 to 30 centimetres (7.9 to 11.8 in) long, with numerous sharp teeth indicating an insectivorous diet. [40]
However, it is represented by only one living species: the tuatara (Sphenodon punctatus), a superficially lizard-like reptile native to New Zealand. [ 5 ] [ 6 ] Lepidosauria is a monophyletic group (i.e. a clade ), containing all descendants of the last common ancestor of squamates and rhynchocephalians. [ 7 ]
The family Shinisauridae contains one living species, the Chinese crocodile lizard (Shinisaurus crocodilurus). This species is semiaquatic, found in forests along streams. These lizards can hold their breath underwater for up to thirty minutes at a time. Found in southern China, this species is viviparous, with litters ranging from 2-7 individuals.
SHE DID IT AGAIN! Wisdom, the world’s oldest known wild bird, is back with a new partner and just laid yet another egg. At an approximate age of 74, the queen of seabirds returned to Midway ...
Jonathan (hatched c. 1832) [2] [3] is a Seychelles giant tortoise (Aldabrachelys gigantea hololissa), a subspecies of the Aldabra giant tortoise (Aldabrachelys gigantea).His approximate age is estimated to be 192 as of 2025, making him the oldest known living land animal.