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Global • 2026-11-01, 08:26 GMT • ~1 min read

First fully marine amphibian found in 237-million-year-old fossils

237 ملین سال پرانے فوسلز میں پہلی مکمل سمندری ایمفیبین دریافت

237 मिलियन वर्ष पुराने जीवाश्मों में पहला पूर्ण समुद्री उभयचर मिला

First fully marine amphibian found in 237-million-year-old fossils

Key points

اہم نکات

मुख्य बातें

  • Researchers have identified the first known fully marine stem amphibian, Gerrothorax maritimus, from two nearly complete skeletons found in Guizhou province in China.
  • The armoured, flattened creature lived about 237 million years ago, in the Late Triassic period, and was about 74 centimetres long.
  • The fossils were buried far from land, and chemical tests on the bones matched the seawater of that time, pointing to a life spent entirely at sea.
  • محققین نے چین کے صوبے گوئیژو میں ملنے والے دو تقریباً مکمل ڈھانچوں سے پہلی مکمل سمندری ایمفیبین، گیروتھوراکس میریٹیمس، کی شناخت کی ہے۔ بکتر بند اور چپٹی جسم والی یہ مخلوق تقریباً 237 ملین سال پہلے، لیٹ ٹرائیاسک دور میں رہتی تھی اور اس کی لمبائی تقریباً 74 سینٹی میٹر تھی۔ فوسلز خشکی سے بہت دور دفن ہوئے تھے، اور ہڈیوں کے کیمیائی ٹیسٹ اس وقت کے سمندری پانی سے ملتے تھے، جس سے لگتا ہے کہ یہ پوری زندگی سمندر میں گزارتی تھی۔ آج کوئی ایمفیبین مکمل طور پر سمندر میں نہیں رہتی، اس لیے یہ دریافت بتاتی ہے کہ یہ گروہ کبھی یہ حد پار کر چکا تھا۔ یہ تحقیق نیچر ایکولوجی اینڈ ایوولوشن میں شائع ہوئی ہے۔
  • शोधकर्ताओं ने चीन के गुइझोउ प्रांत में मिले दो लगभग पूर्ण कंकालों से पहले पूर्ण समुद्री उभयचर, गेरोथोरैक्स मैरिटिमस, की पहचान की है। कवच वाला और चपटे शरीर वाला यह जीव लगभग 237 मिलियन वर्ष पहले, लेट ट्रायसिक काल में रहता था और इसकी लंबाई लगभग 74 सेंटीमीटर थी। जीवाश्म भूमि से बहुत दूर दबे थे, और हड्डियों के रासायनिक परीक्षण उस समय के समुद्री पानी से मेल खाते थे, जिससे लगता है कि यह पूरा जीवन समुद्र में बिताता था। आज कोई उभयचर पूरी तरह समुद्र में नहीं रहता, इसलिए यह खोज बताती है कि यह समूह कभी यह सीमा पार कर चुका था। यह अध्ययन नेचर इकोलॉजी एंड इवोल्यूशन में प्रकाशित हुआ है।

Researchers have identified the first known fully marine stem amphibian, Gerrothorax maritimus, from two nearly complete skeletons found in Guizhou province in China. The armoured, flattened creature lived about 237 million years ago, in the Late Triassic period, and was about 74 centimetres long. The fossils were buried far from land, and chemical tests on the bones matched the seawater of that time, pointing to a life spent entirely at sea. No amphibian living today lives fully in the sea, so the find shows that this group once crossed that barrier. The study was published in Nature Ecology & Evolution.

محققین نے چین کے صوبے گوئیژو میں ملنے والے دو تقریباً مکمل ڈھانچوں سے پہلی مکمل سمندری ایمفیبین، گیروتھوراکس میریٹیمس، کی شناخت کی ہے۔ بکتر بند اور چپٹی جسم والی یہ مخلوق تقریباً 237 ملین سال پہلے، لیٹ ٹرائیاسک دور میں رہتی تھی اور اس کی لمبائی تقریباً 74 سینٹی میٹر تھی۔ فوسلز خشکی سے بہت دور دفن ہوئے تھے، اور ہڈیوں کے کیمیائی ٹیسٹ اس وقت کے سمندری پانی سے ملتے تھے، جس سے لگتا ہے کہ یہ پوری زندگی سمندر میں گزارتی تھی۔ آج کوئی ایمفیبین مکمل طور پر سمندر میں نہیں رہتی، اس لیے یہ دریافت بتاتی ہے کہ یہ گروہ کبھی یہ حد پار کر چکا تھا۔ یہ تحقیق نیچر ایکولوجی اینڈ ایوولوشن میں شائع ہوئی ہے۔

शोधकर्ताओं ने चीन के गुइझोउ प्रांत में मिले दो लगभग पूर्ण कंकालों से पहले पूर्ण समुद्री उभयचर, गेरोथोरैक्स मैरिटिमस, की पहचान की है। कवच वाला और चपटे शरीर वाला यह जीव लगभग 237 मिलियन वर्ष पहले, लेट ट्रायसिक काल में रहता था और इसकी लंबाई लगभग 74 सेंटीमीटर थी। जीवाश्म भूमि से बहुत दूर दबे थे, और हड्डियों के रासायनिक परीक्षण उस समय के समुद्री पानी से मेल खाते थे, जिससे लगता है कि यह पूरा जीवन समुद्र में बिताता था। आज कोई उभयचर पूरी तरह समुद्र में नहीं रहता, इसलिए यह खोज बताती है कि यह समूह कभी यह सीमा पार कर चुका था। यह अध्ययन नेचर इकोलॉजी एंड इवोल्यूशन में प्रकाशित हुआ है।

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