Gunakadeit
Gunakadeit is an extinct genus of thalattosaur. It is known from a single species, Gunakadeit joseeae, which is based on an articulated and mostly complete skeleton from the late Triassic (middle Norian) Hound Island Volcanics of Alaska. "Gunakadeit" possessed a variety of features from the two major suborders of thalattosaurs, Askeptosauroidea and Thalattosauroidea, and it is considered the most basal member of the latter group. Despite this, it is also the youngest known thalattosaur ganus, with the group going extinct at the end of the Triassic. "Gunakadeit"'s basal position and relatively recent occurrence implies a 20-million-year ghost lineage connecting it to the rest of Thalattosauria. The skull ends in a sharply pointed and toothless tip like the askeptosauroid "Endennasaurus", but unlike "Endennasaurus", "Gunakadeit" had poorly developed joints and was likely exclusively aquatic in behavior. 
Q123509
extinct
Concept
Q34740
genus
Concept
Q1123322
thalattosaur
Concept
Q47158
Triassic
LOC
Q1080207
Norian
TIME
Q18153186
Hound Island Volcanics
LOC
Q797
Alaska
LOC
Q2866672
Askeptosauroidea
Concept
Q3519450
Thalattosauroidea
Concept
Q379061
basal
UNK
Q1352393
ghost lineage
UNK
Q3023383
Endennasaurus
Concept
Q85764861
Gunakadeit
MISC
Q85764861
Gunakadeit
MISC
Q85764861
Gunakadeit
MISC
Q85764861
Gunakadeit
MISC
Q85764861
Gunakadeit
MISC
+20^^http://www.w3.org/2001/XMLSchema#decimal
20
NUMBER
located in the administrative territorial entity