Placodus - Wikipedia
Placodus (from Greek: plax, plakos, "a plate" and Greek: odous, "tooth") [1] is an extinct genus of marine reptiles belonging to the order Placodontia, which swam in the shallow seas of the middle Triassic period (c. 240 million years ago). Fossils of Placodus have been found in Central Europe (Germany, France, Poland) and China.
楯齒龍目 - 维基百科，自由的百科全书
楯齒龍目 （Placodontia）又名 盾齒龍目 、 齒龍目，意思為＂塊狀的牙齒＂，是群生存於 三疊紀 的 海生爬行動物，在 三疊紀-侏儸紀滅絕事件 中滅絕。 一般認為牠們跟 鰭龍超目 有接近親緣關係，而鰭龍類也包括 蛇頸龍類。 楯齒龍類身長通常為1到2公尺，最大型的物種可達3公尺。 牠們擁有短而非常強壯的四肢。 部分原始物種在外表上類似粗厚、水桶腰的 蜥蜴，而其他的物種則因為背上的大型骨板，而類似 烏龜。 在1830年發現第一個楯齒龍類的化石，楯齒龍類的化石目前 …
楯齒龍屬 - 维基百科，自由的百科全书
楯齒龍屬 （屬名： Placodus）又名 盾齒龍，是種已滅絕 海生爬行動物，屬於 楯齒龍目，生存於 三疊紀 中期的淺海地區，約2億4000萬年前，楯齒龍的化石發現於 歐洲 德國 、 法國 、 波蘭 與 中國。 楯齒龍有略胖的身體與長尾巴、短頸部，身長約2公尺，可能生存在淺水區域。 楯齒龍的強壯頭顱與牙齒顯示牠們特化為以 貝類 如 雙殼綱 為食。 楯齒龍用突出的前齒，將水底 無脊椎動物 的堅硬外殼拉扯出來，並用後方的平坦牙齒，將獵物外殼壓碎 [1]。 在早期的研究歷史，楯齒龍 …
Placodus | fossil reptile | Britannica
Placodus was a typical form, having broad, flat tooth plates for crushing the mollusks on which it fed. Many placodonts evolved dermal armour, with Henodus having a shell comparable to that of a turtle. However, some paleontologists consider …
Placodontia - Wikipedia
Placodonts (" tablet teeth ") are an extinct order of marine reptiles that lived during the Triassic period, becoming extinct at the end of the period. They were part of Sauropterygia, the group that includes plesiosaurs.
Placodus - Prehistoric Wildlife
2014年1月19日 · Placodus is one of the most often represented reptiles of the placodont group, and the most common of the ‘unarmoured’ variety that seemed to be similar to marine iguanas. Unlike the algae eating marine iguana however, Placodus was a dedicated durophagous shellfish eater. In its search for food it used ...
The genus Placodus : systematics, morphology, …
The skeletal structure of Placodus is described, and the phylogenetic interrelationships of the genus are discussed. Placodonts originated along the northern coast of the Tethys, and early during their phylogeny split into two lineages, the Placodontoidea and Cyamodontoidea.
Placodus - scientificlib.com
Placodus was a genus of 2.5 metre (6.5 ft) long marine reptiles, belonging to the order Placodontia, which swam in the shallow seas of the early to middle Triassic period (210 million years ago). The robust skull and teeth of Placodus show that they were specialized for a durophagous diet of shellfish such as bivalves.
Placodus - reptileevolution.com
Placodus - Reptile evolution from its genesis to today, including the evolution of man, mammals, birds, dinosaurs and reptiles of all sorts
Details - The genus Placodus - Biodiversity Heritage Library
The skeletal structure of Placodus is described, and the phylogenetic interrelationships of the genus are discussed. Placodonts originated along the northern coast of the Tethys, and early during their phylogeny split into two lineages, the Placodontoidea and Cyamodontoidea.