Therefore,
Oldest reptile two known heads:
In China, paleontologists have uncovered a fossil ofHyphalosaurus two heads 120 million years old.
This rare malformation, called axial bifurcationprovides a unique overview of embryonic development anomalies in the aquatic reptiles of Cretaceous. Similarly, This discovery enriches our understanding of evolution and Limits of animal life.
A rare anomaly in an aquatic reptile 120 million years old oldest reptile two known heads reveals an embryonic division failure
L’Hyphalosaurus was a small aquatic reptile with a long neck. Moreover, He lived over 120 million years ago. However, Among the thousands of fossils found in the region of Liaoning In China, a specimen is distinguished. From its pectoral beltits spine is divided into two, giving birth to two cousles et two perfectly formed skulls.
This condition, named axial bifurcationoccurs during an incomplete attempt to twin division during embryonic development.
We still observe similar cases today in certain current species such as turtleTHE serpentsTHE sharks or even deer. However, these individuals rarely reach adulthood. The fossil studied, only measuring 70 mmprobably represents a embryo or a newborn having lived very little time.
Exceptional fossilization makes. it possible to study an extremely rare biological phenomenon in animal evolution
The oldest reptile two known heads very existence of this fossil is a rarity in paleontological archives. Indeed, malformations of this type rarely fossil.
This makes this discovery all the more remarkable. Thanks to theExcellent state of conservation specimen andIntegrity of the stone slabscientists were able to confirm their authenticity. The sediments still partially present on the bones dismiss any suspicion of human manipulation.
This is the older known example of axial bifurcationwhich makes it a precious testimony of The evolutionary history of reptiles. This unique case recalls that even Biological anomaliesalthough often ephemeral, can sometimes be preserved over time.
This two -headed fossil questions scientists about the limits of development. the secrets of evolution
The fossil ofHyphalosaurus two -headed exceeds the simple framework of scientific curiosity. He raises profound questions about limits of embryonic development and possibilities offered by oldest reptile two known heads evolution. This specimen leads to wondering: How many rare malformations have existedwithout ever leaving a trace in the sediments?
By analyzing such anomaliesresearchers can better understand the biological mechanisms governing the training of living organizations.
These studies also allow us to become aware of the Fragility of processes at work during gestation. Finally, this fossil is a tangible testimony of the complexity of the living and its history.
It pushes us to reconsider the Diversity of the animal world through a new prism. where even the Development failures participate in the history of life.
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