How Big Was The Amphicoelias?

The world of paleontology is filled with fascinating discoveries and enigmatic mysteries. Among them, the size of the prehistoric dinosaur Amphicoelias stands out as a topic of continuous debate. This article will delve into the dimensions of this colossal creature, compare it with its relative, the Maraapunisaurus, and discuss the most prominent species, Amphicoelias fragillimus.

Understanding the Amphicoelias

The genus Amphicoelias, belonging to the Diplodocoid family, roamed our planet during the Late Jurassic period. Known for their elongated necks and tails, these dinosaurs were among the largest creatures ever to walk on Earth. However, the exact size of the Amphicoelias remains a subject of speculation due to the lack of complete fossil evidence.

The primary source of information about the Amphicoelias comes from a single, incomplete vertebra discovered in the Morrison Formation in Colorado, USA, in the late 19th century. Edward Drinker Cope, the paleontologist who found this specimen, named it Amphicoelias fragillimus, which translates to ‘double-hollowed fragile one.’

Estimating the Size of Amphicoelias Fragillimus

Based on Cope’s descriptions and drawings, some scientists estimate that Amphicoelias fragillimus could have reached lengths of up to 60 meters (almost 200 feet), making it potentially the longest dinosaur ever discovered. However, these estimates are highly speculative due to the fragmentary nature of the fossils and the potential for misinterpretation or exaggeration in Cope’s initial report.

Moreover, the only known specimen of Amphicoelias fragillimus has been lost to history, further complicating efforts to verify its size. Some recent studies suggest that this dinosaur may have been significantly smaller than initially thought, perhaps closer to the size of other large diplodocoids such as Diplodocus and Apatosaurus.

Comparing Amphicoelias with Maraapunisaurus

Another dinosaur that often comes into discussion when talking about giant dinosaurs is the Maraapunisaurus. Initially identified as a species of Amphicoelias (Amphicoelias altus), it was reclassified as a separate genus, Maraapunisaurus, in 2018.

The Maraapunisaurus size is estimated to be around 30 meters (98 feet) in length, based on more complete fossil evidence compared to Amphicoelias fragillimus. This makes it one of the longest sauropods but still potentially shorter than the speculated maximum size of Amphicoelias fragillimus.

Final Thoughts

The true size of the Amphicoelias, particularly the species Amphicoelias fragillimus, remains one of paleontology’s greatest mysteries. While we can make educated guesses based on fragmentary fossils and comparisons with related dinosaurs like the Maraapunisaurus, the lack of a complete skeleton leaves much to speculation.

Despite these uncertainties, the study of these gigantic creatures continues to captivate scientists and dinosaur enthusiasts alike. Their sheer size and majesty remind us of a time when these magnificent beasts dominated the Earth, leaving behind tantalizing clues for us to unravel millions of years later.

In the end, whether Amphicoelias fragillimus was the longest dinosaur ever or not, it undoubtedly represents one of the most fascinating chapters in the vast and intriguing book of Earth’s prehistoric life.

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