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Els gimnàrtrids (Gymnarthridae) són una família extinta de lepospòndils que visqueren des de començaments del període Carbonífer fins a finals del període Permià, en el que avui són els Estats Units, Canadà i la República Txeca.
Els gimnàrtrids (Gymnarthridae) són una família extinta de lepospòndils que visqueren des de començaments del període Carbonífer fins a finals del període Permià, en el que avui són els Estats Units, Canadà i la República Txeca.
Gymnarthridae is an extinct family of tuditanomorph microsaurs. Gymnarthrids are known from Europe and North America and existed from the Late Carboniferous through the Early Permian. Remains have been found from the Czech Republic, Nova Scotia, Illinois, Texas, and Oklahoma.[1]
Gymnarthrids are relatively elongate with short limbs. The skulls of gymnarthrids are also small, with a single row of large conical teeth on the margin of the jaw (a feature that distinguishes them from other microsaurs). In some genera, such as Bolterpeton and Cardiocephalus, the teeth are labiolingually compressed.[2]
Gymnarthridae was first erected by E. C. Case in 1910 to include the newly described Gymnarthrus.[3] It was placed in a new suborder, Gymnarthria. Case initially considered gymnarthrids to be reptiles, but later recognized them to be amphibians, placing Cardiocephalus in the family.[4] Pariotichus was placed within Gymnarthridae by Alfred Romer after having previously been assigned to the basal eureptilian family Captorhinidae by Edward Drinker Cope.[5]
Gymnarthridae is an extinct family of tuditanomorph microsaurs. Gymnarthrids are known from Europe and North America and existed from the Late Carboniferous through the Early Permian. Remains have been found from the Czech Republic, Nova Scotia, Illinois, Texas, and Oklahoma.
Gymnarthrids are relatively elongate with short limbs. The skulls of gymnarthrids are also small, with a single row of large conical teeth on the margin of the jaw (a feature that distinguishes them from other microsaurs). In some genera, such as Bolterpeton and Cardiocephalus, the teeth are labiolingually compressed.
Gymnarthridae was first erected by E. C. Case in 1910 to include the newly described Gymnarthrus. It was placed in a new suborder, Gymnarthria. Case initially considered gymnarthrids to be reptiles, but later recognized them to be amphibians, placing Cardiocephalus in the family. Pariotichus was placed within Gymnarthridae by Alfred Romer after having previously been assigned to the basal eureptilian family Captorhinidae by Edward Drinker Cope.
Los gimnártridos (Gymnarthridae) son un grupo extinto de lepospóndilos que vivieron desde comienzos del período Carbonífero hasta finales del período Pérmico, en lo que hoy son los Estados Unidos, Canadá y la República Checa.
Datos: Q4845066
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Los gimnártridos (Gymnarthridae) son un grupo extinto de lepospóndilos que vivieron desde comienzos del período Carbonífero hasta finales del período Pérmico, en lo que hoy son los Estados Unidos, Canadá y la República Checa.
