Dvinosaurusとは 意味・読み方・使い方

Dvinosaurus is a genus of extinct temnospondyli amphibian. The type species, D. primus, was described by Vladimir Prokhorovich Amalitzky in 1921. The holotype is cataloged as PIN2005/35, and consists of only a skull. A second species, D. secundus, was also described by Amalitzky. A third species, D. tertius, is considered synonymous with D. secundus. All three of these species were described in 1921. Two additional species, D. egregius, and D. purlensis, were named by Mikhail Shishkin in 1968. These were named from a fossilized skull and a partial lower jaw, respectively.