Editing Maiaspondylus
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''Maiaspondylus'' is known from the [[holotype]] [[University of Alberta|UALVP]] 45635, a disarticulated but nearly complete [[skeleton]] preserved in three dimensions and from the referred materials UALVP 45639, two articulated, partially preserved embryos and eight articulated [[vertebra]]e of an adult, UALVP 45640, 14 articulated vertebrae of a juvenile, UALVP 45640, 12 articulated vertebrae, UALVP 45642, a partial snout and left dentaries with teeth and UALVP 45643, a fragmentary snout. All specimens were collected at [[Hay River, Northwest Territories|Hay River]] from the [[Loon River Formation]], dating to the early [[Albian]] age of the [[Early Cretaceous]], about 110 [[mya (unit)|million years ago]].<ref name=Maiaspondylus/> |
''Maiaspondylus'' is known from the [[holotype]] [[University of Alberta|UALVP]] 45635, a disarticulated but nearly complete [[skeleton]] preserved in three dimensions and from the referred materials UALVP 45639, two articulated, partially preserved embryos and eight articulated [[vertebra]]e of an adult, UALVP 45640, 14 articulated vertebrae of a juvenile, UALVP 45640, 12 articulated vertebrae, UALVP 45642, a partial snout and left dentaries with teeth and UALVP 45643, a fragmentary snout. All specimens were collected at [[Hay River, Northwest Territories|Hay River]] from the [[Loon River Formation]], dating to the early [[Albian]] age of the [[Early Cretaceous]], about 110 [[mya (unit)|million years ago]].<ref name=Maiaspondylus/> |
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All ''Maiaspondylus'' specimens were originally referred to ''[[Platypterygius]]''. However, all recent [[cladistic]] analyses found that ''Maiaspondylus'' is a valid genus of ophthalmosaurid.<ref name=DM10>{{cite journal |last1=Druckenmiller |first1=Patrick S. |last2=Maxwell |first2=Erin E. |year=2010 |title=A new Lower Cretaceous (lower Albian) ichthyosaur genus from the Clearwater Formation, Alberta, Canada |journal=Canadian Journal of Earth Sciences |volume=47 |issue=8 |pages=1037–1053 |doi=10.1139/E10-028 |bibcode=2010CaJES..47.1037D }}</ref><ref name=Fetal11>{{cite journal |last=Fischer |first=V. |author2=Masure, E. |author3=Arkhangelsky, M.S. |author4= Godefroit, P. |year=2011 |title=A new Barremian (Early Cretaceous) ichthyosaur from western Russia |journal=Journal of Vertebrate Paleontology |volume=31 |issue=5 |pages=1010–1025 |doi=10.1080/02724634.2011.595464 |
All ''Maiaspondylus'' specimens were originally referred to ''[[Platypterygius]]''. However, all recent [[cladistic]] analyses found that ''Maiaspondylus'' is a valid genus of ophthalmosaurid.<ref name=DM10>{{cite journal |last1=Druckenmiller |first1=Patrick S. |last2=Maxwell |first2=Erin E. |year=2010 |title=A new Lower Cretaceous (lower Albian) ichthyosaur genus from the Clearwater Formation, Alberta, Canada |journal=Canadian Journal of Earth Sciences |volume=47 |issue=8 |pages=1037–1053 |doi=10.1139/E10-028 |bibcode=2010CaJES..47.1037D }}</ref><ref name=Fetal11>{{cite journal |last=Fischer |first=V. |author2=Masure, E. |author3=Arkhangelsky, M.S. |author4= Godefroit, P. |year=2011 |title=A new Barremian (Early Cretaceous) ichthyosaur from western Russia |journal=Journal of Vertebrate Paleontology |volume=31 |issue=5 |pages=1010–1025 |doi=10.1080/02724634.2011.595464 |url=https://orbi.uliege.be/handle/2268/92828 }}</ref> Patrick S. Druckenmiller and Erin E. Maxwell (2010) found it to be most closely related to ''"[[Platypterygius]]" americanus'', which probably do not belong to the genus ''Platypterygius''.<ref name=DM10/> |
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==Etymology== |
==Etymology== |