ካርድ ዳይኖሰር ቁ. 1486 ካብ 2 027

Protognathosaurus

ትርጉም ስሙ: “early jaw lizard”1

ይበልዕ ነበረ: ኣትክልቲነዋሕቲ ክሳድማእከላይ ጁራሲክ ክሳብ ዳሕራይ ጁራሲክ

Protognathosaurus was a long-necked, plant-eating dinosaur that lived in what is now China during the Middle Jurassic. It is known only from a piece of its lower jaw, so scientists are still learning about it. Most researchers think it was a medium-sized sauropod.1 3

ዝነበረሉ

ቅድሚ 171 ክሳብ 155 ሚልዮን ዓመት3

ማእከላይ ጁራሲክ ክሳብ ዳሕራይ ጁራሲክ

ፎሲላት ዝተረኽቡሉ

Dashanpu Dinosaur Quarry, Sichuan, China3 1

ንውሓት

10 ክሳብ 100 m (33 ክሳብ 328 ft)2

ዝለዓለ ቅልጣፈ

ኣስታት 15 ኪ.ሜ/ሰ (9 ማይል/ሰ)

ጉያ, ግምት

መዓስ እዩ ዝነበረ?

ትሪያሲክ

ጁራሲክ

ክሬታሸስ

ቅድሚ 252 ሚልዮን ዓመት20114566፣ እቲ ኣስተሮይድ

ክንደይ ዓቢ ነይሩ?

ክንደይ ነዊሕ ነይሩ?

ከም 22 መካይን ብመስርዕ ዝቖማ ዝነውሕከም 560 ባናና ተሰሪዑ ዝነውሕ100 ሜትሮ ኣብ 24 ካልኢት ክጎዪ ይኽእል ነበረ (እቲ ዝቐልጠፈ ሰብ 9.6 የድልዮ)

ምሳኻ ክነጻጸር Protognathosaurus ክንደይ ዓቢ ነይሩ?

ኣብ ብራውዘርካ ቀሊል ሕሳብ ጥራይ። ዝዕቀብ ወይ ናብ ዝኾነ ቦታ ዝለኣኽ የለን።

ክንደይ ቅልጡፍ ነይሩ?

ዝኸይድ ሰብ ኣስታት 5 ኪ.ሜ/ሰ (3 mph)

ብሽክለታ ዝጋልብ ቆልዓ ኣስታት 12 ኪ.ሜ/ሰ (7 mph)

Protognathosaurus ኣስታት 15 ኪ.ሜ/ሰ (9 mph)

ብጉያ ዝኸይድ ፈረስ ኣስታት 65 ኪ.ሜ/ሰ (40 mph)

ቺታ ኣስታት 100 ኪ.ሜ/ሰ (62 mph)

ዘደንቑ ነገራት

ደስ ዝብሉ ሓቅታት

Protognathosaurus is known only from a single fossil: the front part of a left lower jaw, called a dentary.1

This dinosaur had 18 to 20 teeth in its lower jaw, and some of them were sharp replacement teeth still growing in.1 2

Its teeth had a sharp point and small serrations (like a steak knife) on the front and back edges.2

The name Protognathosaurus was first used in 1991 by George Olshevsky, because the original name Protognathus was already taken by a beetle.1

Most scientists consider Protognathosaurus a nomen dubium, meaning the fossil is too incomplete to be sure it is a distinct species.1

The jaw bone is thick and heavy, with a deep groove called the Meckelian canal, which is a feature of some early sauropods.2

ብAI ዝተሰርሐ ስእሊ ናይ Protognathosaurus — ብAI ዝተሰርሐ ስእሊ፣ Protognathosaurus ከመይ ይመስል ከም ዝነበረ ዘርኢ፣ ኮምፒተር ካብቲ ሳይንቲስታት ዝፈልጥዎ ዝሰርሖ። ግምት እዩ: እቲ ሓቀኛ እንስሳ ፍልይ ዝበለ ክመስል ይኽእል፣ ሓቀኛ ሕብሩ ድማ ዝፈልጦ የለን።

ንስኻ ሓቲትካ

ብዛዕባ Protognathosaurus ብብዝሒ ዝሕተቱ ሕቶታት

?How big was Protognathosaurus?

Scientists don't know exactly, because only a jaw bone has been found. It was probably a medium-sized sauropod, maybe 10 to 20 metres long.1 3

?What did Protognathosaurus eat?

It was a herbivore, meaning it ate plants. Its sharp, serrated teeth helped it chew tough leaves.1 3

ንክኢላታት ዳይኖሰር

ሳይንሳዊ ስም: Protognathosaurus
ዝሰመዮ: Olshevsky 19913
ጉጅለ: ነዋሕቲ ክሳድ
ስድራ / ክላድ: Cetiosauridae3
ምድባ: Sauropodomorpha > Sauropoda3
ዕድመ እቶም ኣኻውሕ: 171 ክሳብ 155 ሚልዮን ዓመት (Bajocian / Oxfordian)3
ናይ ኣኻውሕ ንብርብራት: Shaximiao3
ሃገራት: ቻይና3
መዛግብቲ ፎሲል: 1 ኣብ The Paleobiology Database3
ርኽበት: The fossil was found in the Dashanpu Dinosaur Quarry in Sichuan, China. It was named Protognathus oxyodon by Zhang Yihun in 1988, but that name was already used for a beetle, so George Olshevsky renamed it Protognathosaurus oxyodon in 1991.1
ገና ዘከራኽር: Scientists are not sure if Protognathosaurus is a valid dinosaur or just a doubtful name, because only a piece of jaw has been found.1

ሓቅታት ካበይ ይመጹ

Protognathosaurus (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Protognathosaurus in The Paleobiology Database (CC BY 4.0): ዕድመ፣ ቦታታት፣ ናይ ኣኻውሕ ንብርብራት፣ ምድባ።

ኣብዚ ገጽ ዘሎ ኩሉ ሓቂ ናብ ምንጩ ዘመልክት ቁጽሪ ኣለዎ። ጌጋ እንተ ጌርና፣ ይቕሬታ፣ ንሕና ፈተውቲ ዳይኖሰር ኢና፣ ሳይንሳዊ መጽሔት ኣይኮንናን። ኣብ [email protected] ንገረና፣ ክንእርሞ ኢና።

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