مومياوات الديناصورات تكشف أسرار ما قبل التاريخ

اكتشف العلماء مومياوات ديناصورات مذهلة في وايومنغ، تشمل أول مومياء لصغير ديناصور محنط. هذه الاكتشافات تكشف عن تفاصيل جديدة حول شكل الديناصورات وكيفية تحنيطها، مما يفتح آفاقًا جديدة لفهم عصور ما قبل التاريخ.

24 أكتوبر 2025

مومياوات ديناصورات محفوظة بشكل غير تقليدي في بيئة مائية، تظهر تفاصيل جلدها وحراشفها على طبقة رقيقة من الطين. — تظهر هذه الرسمة التي قدمتها جامعة شيكاغو كيف كان قد يبدو ديناصور ذو منقار بطة استنادًا إلى بقايا محنطة تم العثور عليها في وايومنغ.

مومياء ديناصور محفوظة بشكل غير عادي تظهر تفاصيل جلدها وحراشفها على طبقة طينية، مما يوفر رؤى جديدة حول مخلوقات ما قبل التاريخ. — تظهر هذه الصورة المقدمة من جامعة شيكاغو مومياء لديناصور ذو منقار بط resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting 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resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting resting 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مومياء ديناصور محفوظة تظهر انطباعات جلدية وحراشف على طبقة من الطين، مع يد إنسان تلامس البقايا، توضح تفاصيل التحنيط الفريد. — تظهر هذه الصورة التي قدمتها جامعة شيكاغو جلد ديناصور مومى صغير ذو قشور تم العثور عليه في وايومنغ. (تايلر كيلور/جامعة شيكاغو عبر أسوشيتد برس)

بقايا مومياء ديناصور منقار البط محفوظة في طبقة رقيقة من الطين، تظهر انطباعات جلدية وحراشف، مما يقدم رؤى جديدة عن شكل الديناصورات. — تظهر هذه الصورة المقدمة من جامعة شيكاغو انطباعات لقدم ديناصور محنط. (تايلر كيلور/جامعة شيكاغو عبر أسوشيتد برس)

التصنيف:علوم

شارك الخبر:

مقدمة حول مومياوات الديناصورات

اكتشف باحثون زوجًا مخيفًا من مومياوات الديناصورات التي يبدو أنها حُفظت بطريقة غير متوقعة.

أنواع مومياوات الديناصورات

تختلف رفات الديناصورات هذه عن المومياوات الملفوفة في مصر أو المومياوات البشرية الطبيعية التي يتم حفظها بالصدفة في المستنقعات أو الصحاري. فالديناصورات المحنطة قديمة جدًا لدرجة أن جلدها وأنسجتها الرخوة تحجرت. ويستخدم العلماء هذه البقايا النادرة، إلى جانب عظام الديناصورات، لإعادة تكوين الشكل الذي ربما كان يبدو عليه شكل هذه المخلوقات التي تعود إلى عصور ما قبل التاريخ.

المومياوات المحنطة القديمة

ظل العلماء يكتشفون مومياوات الديناصورات لأكثر من قرن من الزمان. دُفن بعضها بسرعة بعد موتها، بينما غرق بعضها الآخر في المسطحات المائية أو جفّت.

مومياء ديناصور بمنقار البط

شاهد ايضاً: صاروخ ناسا إلى القمر يواجه مشكلة جديدة قد تؤجل رحلة رواد الفضاء إلى أبريل

وينحدر العديد منها، بما في ذلك مومياء ديناصور بمنقار البط اكتشفت في عام 1908، من منطقة في شرق وايومنغ. في الدراسة الجديدة، عاد العلماء إلى ما يسمى بمنطقة المومياء هذه وعثروا على بقايا جديدة، بما في ذلك مومياء ديناصور منقار البط الذي كان عمره بضع سنوات فقط عندما مات.

طرق التحنيط الغير تقليدية

وقال بول سيرينو، عالم الحفريات بجامعة شيكاغو الذي شارك في هذا الاكتشاف: "هذا هو أول صغار ديناصور محنط بالفعل".

التحنيط بواسطة الميكروبات

ومن المثير للدهشة أن المومياوات الجديدة يبدو أنها حُفظت دون أي دليل على وجود جلد متحجر. وبدلاً من ذلك، تركوا انطباعات لجلودهم وحراشفهم على طبقة رقيقة من الطين التي تصلبت بمساعدة الميكروبات.

أهمية اكتشاف مومياوات الديناصورات

شاهد ايضاً: العلماء يلتقطون أصوات طقطقة يعتقدون أنها صاعقة برق على المريخ

وقد حافظ هذا النمط من التحنيط على كائنات حية أخرى من قبل، لكن العلماء لم يعتقدوا أنه يمكن أن يحدث على اليابسة. وقال سيرينو إنه من المحتمل أن تكون المومياوات الأخرى التي عُثر عليها في موقع وايومنغ قد تكونت بطريقة مماثلة.

فوائد البحث عن مومياوات جديدة

واستخدم العلماء هذه القوالب الطينية لرسم صورة أوضح لما يمكن أن تكون عليه الديناصورات ذات منقار البط عندما كانت على قيد الحياة، بما في ذلك المسامير على ذيلها والحوافر على أقدامها. نُشرت النتائج الجديدة يوم الخميس في مجلة Science.

استنتاجات حول الديناصورات

يمكن أن يساعد فهم كيفية تشكل مومياوات الديناصورات العلماء في الكشف عن المزيد منها. قال ماتيوس فوسيك، عالم الحفريات بجامعة ميسيريكورديا الذي لم يشارك في هذا الاكتشاف، إنه من المهم البحث ليس فقط عن عظام الديناصورات، ولكن أيضًا عن آثار الجلد والأنسجة الرخوة التي قد لا يتم دراستها أو حتى التقاطها.

كنوز المعلومات من الحفريات

شاهد ايضاً: قد تكون الأضواء الشمالية مرئية في بعض مناطق الولايات المتحدة بسبب العواصف الشمسية

يقدم المزيد من المومياوات المزيد من الرؤى حول كيفية نمو هذه المخلوقات وعيشها.

وقالت ستيفاني درومهيلر، عالمة الحفريات الفقارية في جامعة تينيسي في نوكسفيل، التي لم تشارك في الدراسة: في كل مرة نعثر فيها على واحدة من هذه الحفريات، نجد كنزاً من المعلومات عن هذه الحيوانات.

أخبار ذات صلة

خروف البحر يسبح في مياه كيب كود، يُعتبر نوعًا مهددًا بالانقراض، والعلوم تراقب حالته بعد ظهوره المفاجئ.

العلماء مستعدون لإنقاذ خروف البحر النادر الذي رُصد في مياه نيو إنجلاند الباردة

في حدث نادر، تم رصد خروف البحر قبالة ساحل ماساتشوستس لأول مرة منذ سنوات، مما أثار قلق العلماء حول مصيره في المياه الباردة. هذا الكائن المهدد بالانقراض يحتاج إلى اهتمام عاجل لضمان بقائه، فهل ستتمكن جهود الإنقاذ من إنقاذه قبل فوات الأوان؟ تابعوا القصة المثيرة.

علوم12 أغسطس 2025

خريطة ملونة توضح الشبكات العصبية في دماغ فأر، تُظهر تواصل 84000 خلية عصبية عبر 500 مليون وصلة. تمثل خطوة مهمة لفهم وظائف الدماغ.

علماء يحددون جزءًا من دماغ الفأر معقد لدرجة أنه يشبه مجرةً

اكتشف العلماء خريطة وظيفية جديدة للدماغ، مستلهمين من مشاهدات فأر يشاهد أفلام "ماتريكس". هذه الخريطة تقدم رؤى مذهلة حول كيفية تواصل الخلايا العصبية، مما قد يفتح آفاقًا لعلاج أمراض مثل الزهايمر. تابعوا معنا لتكتشفوا المزيد عن هذا الاكتشاف الثوري!

علوم9 أبريل 2025

قمر مكتمل يظهر في السماء، يبدو أصغر وأكثر خفوتاً بين السحب، مما يعكس ظاهرة القمر الصغير.

ستزين قمر صغير سماء الليل في عطلة نهاية الأسبوع هذه

استعدوا لمشاهدة ظاهرة فلكية مدهشة! القمر المكتمل سيظهر أصغر وأخف في ليلة السبت، لكن لا تدعوا هذا يفوتكم. انطلقوا إلى السماء في منطقة ذات رؤية واضحة واستمتعوا بجمال هذا القمر الصغير. تابعوا معنا لتعرفوا المزيد عن هذه الظواهر الفلكية المثيرة!

علوم8 أبريل 2025

دبور قديم محفوظ في الكهرمان، يتميز بتصميم يشبه مصيدة الذباب، يُعتقد أنه كان يستخدم لتثبيت الحشرات لوضع البيض.

علماء يكتشفون حشرة قديمة محفوظة في العنبر كانت تخطف فريستها

اكتشف العلماء دبورًا قديمًا يُعتبر من أغرب الحشرات التي عاشت بين الديناصورات، يتميز بجسم يشبه مصيدة الذباب فينوس، مما يثير الفضول حول كيفية تطور هذه الكائنات. تابعوا معنا تفاصيل هذا الاكتشاف المذهل وكيف يمكن أن يغير فهمنا لعالم الحشرات.

علوم27 مارس 2025