• the Delaware Basin in Texas contains fossilised coral reefs from the Permian era?
• carbonate hardgrounds were most commonly formed during calcite sea intervals in the Ordovician and Jurassic periods in Earth's history, but were virtually absent from the aragonite seas of the Permian era?

Facts on topics related to Permian

Geologic time scale

• Madison Limestone, a layer of mostly carbonate rocks formed in the Mississippian period, serves as an aquifer and an oil reservoir in the Rocky Mountains and Great Plains areas?

Cretaceous

• New Caledonia, an island fragment of the sunken continent Zealandia since the Cretaceous, and home to the Kagu (pictured), has been likened to a "Jurassic Park"?
• Polar dinosaurs could have walked to Australia, because during the early Cretaceous the continent of Australia was still linked to Antarctica?
• Poricy Park in New Jersey is known for allowing limited collecting at its Cretaceous-era fossil shell beds?
• UA 8699, a broken molar from the Cretaceous of Madagascar, may be a fragment of the only Mesozoic marsupial from the southern continents?
• Repenomamus may have been the largest mammal in the Cretaceous period and is the only mammal known to have eaten non-avian dinosaurs?
• Trapalcotherium matuastensis is one of five species of mammals recognized among seven fossil teeth from the Cretaceous Allen Formation of Argentina?
• the Cretaceous Malagasy mammal Lavanify is most closely related to a species from India?
• the Cretaceous mammal Argentodites is known only from a blade-like tooth with eight cusps arranged in a row?
• the Cretaceous terrestrial crocodilian Araripesuchus is known from five distinct species, two from Africa and the other three from South America?
• the extinct spider Eoplectreurys is the oldest described genus of Haplogynae, predating spiders from Cretaceous amber in Jordan and Lebanon?

Dinosaur

• Chicago hairstylist John Lanzendorf owned one of the world's largest collections of dinosaur-themed artwork?
• flutist Masakazu Yoshizawa was hired by John Williams to play the shakuhachi for the Jurassic Park soundtrack because the instrument sounded "like a dinosaur's cry"?
• fossil remains of the dinosaur species Aralosaurus were found in Kazakhstan after the Aral Sea started shrinking significantly?
• Othniel Charles Marsh named two species of the dinosaur Coelurus from the same quarry, not knowing that the bones belonged to the same skeleton?
• Ammosaurus remains were originally mistaken by Othniel Charles Marsh as those of another dinosaur, Anchisaurus?
• footprints have revealed clues about the activity of criminals and dinosaurs, and have also been the source of several myths and legends?
• Johnny Anders, mayor of Stamford in West Texas, built from spare automobile parts a 22-foot dinosaur model displayed in Stamford's city park?
• Raven Ridge (pictured) displays sedimentary rock from the K–T boundary, a time period when numerous plant and animal species, including dinosaurs, disappeared completely from the fossil record?
• Aerosteon, a 9-metre (30 ft) long bipedal carnivorous dinosaur that lived approximately 84 million years ago, had air-sacs in its bones similar to those in the respiratory systems of modern birds?
• Agilisaurus was first discovered when construction workers were excavating a site for a new dinosaur museum in China?

Devonian

• Plymouth Sound, Shores and Cliffs has units of rock showing the lower to early Middle Devonian period, laid 417–354 million years ago?
• an anomalocaridid, a bizarre Cambrian organism, has been found 100 million years later, in the Devonian era?
• an unnamed member of the extinct order Hupehsuchia exhibited an unusual form of polydactyly that is similar to that of some early tetrapods of the Devonian period?
• the geology of the Orkney Islands off the coast of Scotland includes many Devonian era Old Red Sandstone rock formations, such as the Old Man of Hoy (pictured)?
• the Ochil Hills are a Devonian lava extrusion whose southern fault line is particularly prominent today as an escarpment?

Ordovician

• carbonate hardgrounds were most commonly formed during calcite sea intervals in the Ordovician and Jurassic periods in Earth's history, but were virtually absent from the aragonite seas of the Permian era?
• the Lewisian gneiss (pictured), forms the basement to Torridonian and Cambro-Ordovician sedimentary rocks in the Hebridean Terrane?
• the earliest fossil reef formations that show high biodiversity, containing the earliest corals, form the mid-Ordovician Chazy Formation, reaching from Tennessee to Labrador?

Paleontology

• paleontologist Gerta Keller theorizes that dinosaurs did not become extinct until 300,000 years after the Chicxulub meteor, though she agrees that "I'm sure the day after, they had a headache"?
• researchers have identified the pictured life form which no longer lives on this planet?
• species of Prosaurolophus, a duckbilled dinosaur, have been described by Barnum Brown and Jack Horner, two of the most prominent paleontologists of the 20th century?

Mesozoic

• sandstone layers (pictured) now exposed in the Canyons of the Escalante in Utah were deposited during the Mesozoic period, when the area was covered with sand dunes about 180 to 225 million years ago?
• solenodons (pictured), the only surviving soricomorphs of the Caribbean, are a distinct lineage that may date back to the Mesozoic?
• shartegosuchid crocodyliforms made up an endemic Central Asian Mesozoic fauna that existed after the breakup of Pangaea?
• UA 8699, a broken molar from the Cretaceous of Madagascar, may be a fragment of the only Mesozoic marsupial from the southern continents?
• Yongjiacaris represents the second report of freshwater caridean shrimp from the Mesozoic era?
• in addition to some isolated teeth and a jaw fragment, the Mesozoic mammals of Madagascar include the most complete mammalian skeleton known from the Mesozoic of Gondwana?