We present the first known fossilized snake embryo/neonate preserved in early Late Cretaceous (Early Cenomanian) amber from Myanmar, which at the time, was an island arc including terranes from Austral Gondwana. This unique and very tiny snake fossil is an articulated postcranial skeleton, which includes posterior precloacal, cloacal, and caudal vertebrae, and details of squamation and body shape; a second specimen preserves a fragment of shed skin interpreted as a snake. Important details of skeletal ontogeny, including the stage at which snake zygosphene-zygantral joints began to form along with the neural arch lamina, are preserved. The vertebrae show similarities to those of fossil Gondwanan snakes, suggesting a dispersal route of Gondwanan faunas to Laurasia. Finally, the new species is the first Mesozoic snake to be found in a forested environment, indicating greater ecological diversity among early snakes than previously thought.

中文翻译：

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缅甸产的琥珀色中白垩纪胚胎到新生儿的蛇。

我们介绍了第一个已知的化石蛇胚胎/新生儿酸盐，保存在缅甸的晚白垩纪（早塞诺曼时期）琥珀中，当时是一个岛弧，包括来自冈萨纳南方的地雷。这种独特且非常细小的蛇化石是一个铰接的颅后骨骼，包括后泄殖腔，泄殖腔和尾椎，以及鳞状和体形的细节。第二个标本保留了被解释为蛇的脱落的皮肤碎片。保留了骨骼发育的重要细节，包括蛇合子-合子关节开始与神经弓椎板一起形成的阶段。椎骨与化石冈瓦南蛇相似，表明冈瓦纳动物群向劳拉西亚的扩散路径。最后，