Giant sequoias: There are less than 80,000 of these redwoods left in California,

[PufPuf23]

14. Both Giant Sequoia and Coast Redwoods are redwoods

and the third species of tree called redwood is the Dawn Redwood, fossil tree found in China in 1944, a third redwood genus.

Some fossilized trees in Arizona's Petrified Forest National Park are related the modern redwoods.

Preserved bark is rare, but known bark fossils show that it is thin and "rippled", with low ridges and longitudinal furrows similar to some modern pines. The roots, when preserved, are significantly different from modern conifers: There is a massive central taproot, up to 5 meters (16.4 feet) long, ringed by four to six thick lateral roots. Modern conifers, on the other hand, typically bear a circular cluster of relatively small, narrow roots. No known conifer foliage is directly associated with the trunks, but common conifer leaves such as Pagiophyllum, Brachyphyllum, and Podozamites are also known from the Chinle Formation.[4] In life, Araucarioxylon arizonicum may have looked similar to a medium-sized Sequoiadendron giganteum (giant sequoia).[

https://en.wikipedia.org/wiki/Araucarioxylon_arizonicum