ካርድ ዳይኖሰር ቁ. 1437 ካብ 2 027

Placodus

ትርጉም ስሙ: “plate tooth”1

ይበልዕ ነበረ: ስጋናይ ባሕሪ ተሳሓብቲመጀመርታ ትሪያሲክ ክሳብ ዳሕራይ ትሪያሲክብቴክኒክ ዳይኖሰር ኣይኮነን

Placodus was a marine reptile that lived about 240 million years ago, during the Middle Triassic. It had a stocky body, a long tail, and a heavy skull with flat teeth for crushing shellfish. It swam in shallow seas and probably spent most of its time on the seafloor looking for food.1

ደስ ዝብል ሓቂ: እዚ ናይ ባሕሪ ተሳሓባይ ዳይኖሰራት ኣብ ምድሪ ክኸዱ ከለዉ ይሕምብስ ነበረ። ኩሉ ሰብ ዳይኖሰር ይብሎም፣ ግን ካልእ ጨንፈር ተሳሓብቲ እዮም ነይሮም።

ዝነበረሉ

ቅድሚ 251 ክሳብ 227 ሚልዮን ዓመት3

መጀመርታ ትሪያሲክ ክሳብ ዳሕራይ ትሪያሲክ

ፎሲላት ዝተረኽቡሉ

Central Europe (Germany, France, Poland) and China1 3

ንውሓት

2.5 ክሳብ 3 m (8.2 ክሳብ 9.8 ft)1

ዝለዓለ ቅልጣፈ

ኣስታት 16 ኪ.ሜ/ሰ (10 ማይል/ሰ)

ምሕምባስ, ግምት

መዓስ እዩ ዝነበረ?

ትሪያሲክ

ጁራሲክ

ክሬታሸስ

ቅድሚ 252 ሚልዮን ዓመት20114566፣ እቲ ኣስተሮይድ

ክንደይ ዓቢ ነይሩ?

ክንደይ ነዊሕ ነይሩ?

ከም 3 ኣኽላባት ካብ ኣፍንጫ ክሳብ ጭራ ዝነውሕከም 17 ባናና ተሰሪዑ ዝነውሕንውሓት ዓቢ መሕምበሲ (50 ሜ) ኣብ 11 ካልኢት ክሕምብሶ ይኽእል ነበረ

ምሳኻ ክነጻጸር Placodus 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)

Placodus ኣስታት 16 ኪ.ሜ/ሰ (10 mph)

ብጉያ ዝኸይድ ፈረስ ኣስታት 65 ኪ.ሜ/ሰ (40 mph)

ቺታ ኣስታት 100 ኪ.ሜ/ሰ (62 mph)

ዘደንቑ ነገራት

ደስ ዝብሉ ሓቅታት

Placodus had a rigid body because the bones in its spine were dovetailed together, making its trunk stiff.1

Its belly was covered with special armor made of bent, right-angled abdominal ribs, and it had a row of bony knobs above its backbone.1

Placodus was negatively buoyant, meaning it was heavy and could easily stay on the seafloor without floating up.1

Before scientists knew what Placodus looked like, its teeth were mistaken for fish teeth.1

Placodus was slow and clumsy on land because of its heavy body armor, so it probably only came ashore to lay eggs.1

Its short legs probably ended in webbed feet, and it used its flattened tail to push through the water.1

ብAI ዝተሰርሐ ስእሊ ናይ Placodus — ብAI ዝተሰርሐ ስእሊ፣ Placodus 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 Placodus ብብዝሒ ዝሕተቱ ሕቶታት

?How big was Placodus?

About 2.5 to 3 metres (8.2 to 9.8 ft) long.1

?What did Placodus eat?

Shellfish like bivalves, plus other hard-shelled prey such as molluscs, brachiopods and crustaceans. It used its chisel-like front teeth to pluck them from the sea floor and its broad, flat back teeth to crush their shells.1

?Was Placodus a dinosaur?

No, Placodus was a marine reptile called a placodont, not a dinosaur. It lived in the sea during the Triassic period.1 2

?Could Placodus swim?

Yes, it swam using its flattened tail and short legs that probably ended in webbed feet. It was not as good at swimming as later marine reptiles like plesiosaurs, but it was comfortable in the water.1

?Why did Placodus have a rigid body?

Its spine had dovetailed bones that locked together, making its trunk stiff. This helped it stay heavy on the sea floor so it could feed without floating up.1

?When did Placodus live?

About 240 million years ago, in the Middle Triassic period.1

ንክኢላታት ዳይኖሰር

ሳይንሳዊ ስም: Placodus
ዝሰመዮ: Agassiz 18333
ጉጅለ: ናይ ባሕሪ ተሳሓብቲ
ስድራ / ክላድ: Placodontidae3
ምድባ: Placodontia > Sauropterygia3
ዕድመ እቶም ኣኻውሕ: 251 ክሳብ 227 ሚልዮን ዓመት ()3
ናይ ኣኻውሕ ንብርብራት: Jena, Wellenkalk, Vossenveld3
ሃገራት: ጀርመን, እስራኤል, ፖላንድ, ኔዘርላንድ, ጣልያን, ቻይና3
መዛግብቲ ፎሲል: 34 ኣብ The Paleobiology Database3
ብኻልእ ስም: Anomosaurus, Crurosaurus (ዝኣረጉ ኣስማት ሕጂ ከም ሓደ እንስሳ ይቑጸሩ)3
ርኽበት: Placodus was named by the Swiss naturalist Louis Agassiz in 1833. He originally thought the fossils were fish teeth.1 3

ሓቅታት ካበይ ይመጹ

Placodus (en.wikipedia.org)
Fossil Focus: Placodonts – PALAEONTOLOGY[online] (palaeontologyonline.com)
Placodus 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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