Although long known to paleontologists, pterosaurs (and pterodactyls) continue to surprise. They dominated the air long before birds took wing, soaring through Earth’s skies for 150 million years, then joining nonavian dinosaurs in a major extinction event 66 million years ago. As flying reptiles, they were a breed apart from dinosaurs, and they came in a fantastic and weird array of sizes and forms, from tiny finch-like creatures to monsters as big as a modern airplane!
هذه القصة مأخوذة من طبعة May 2020 من Rock&Gem Magazine.
ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 9,000 مجلة وصحيفة.
بالفعل مشترك ? تسجيل الدخول
هذه القصة مأخوذة من طبعة May 2020 من Rock&Gem Magazine.
ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 9,000 مجلة وصحيفة.
بالفعل مشترك? تسجيل الدخول
THE BRIGHT SIDE OF VOLCANIC ROCK
As a mineral resource, volcanic rock is decidedly short on glamour.
The Other Copper Minerals
12 Lesser-known Collectible Species
MINERAL COLLECTING -AND ROCK & GEM
Evolving Together FOR 54 YEARS
Gemstone Trends
A Look Back at 2024 & What to Expect in 2025
How to Make a GEM BEAD NECKLACE
No Lapidary Experience Needed!
Framing Nature's Art
Faceting Rutilated Quartz for Beginners
BEDAZZLED BLUE SEAM AGATE
More than several centuries ago, mining was the profession most often seen as befitting of men.
ROCK & GEM FIELD GUIDE:
Spinel is a captivating gemstone with a rich history of being mistaken for gems like ruby and sapphire.
SNAKE SCALE DROP 1.5:1
This Faceting Focus is revisiting the briolette gemstone design because of its popularity with independent and hobby gemstone faceters.
STONE CHIC
How Earth-Inspired Decor Brings Comfort to our Home