† Merriamosauria


Additional Functions


Belong­ing to

Gaeabionta  ⇒ Domäne: Eukaryota  ⇒ Reich: Animalia  ⇒ Mittelreich: Eumetazoa  ⇒ Klade: Triploblastica  ⇒ Klade: Nephrozoa  ⇒ Abzweig: Deuterostomia  ⇒ Stamm: Chordata  ⇒ Unterstamm: Vertebrata  ⇒ Infrastamm: Gnathostomata  ⇒ Superklasse: Tetrapoda  ⇒ Serie: Amniota  ⇒ Klade: Sauropsida  ⇒ Infraklasse: Eureptilia  ⇒ ohne Rang: Romeriida  ⇒ Unterklasse: Diapsida  ⇒ Klade: Ichthyosauromorpha  ⇒ Klade: Ichthyosauriformes  ⇒ Unterklasse: Ichthyopterygia  ⇒ Klade: Eoichthyosauria  ⇒ Ordnung: Ichthyosauria  ⇒ Klade: Hueneosauria  ⇒ Unterordnung: Longipinnati

Taxo­nomic seg­ment


This mentioned taxonomy is an attempt to make an conclusive assignment from the different classifications of various scientists. Because the taxonomy may change due to the latest investigative methods and other findings, our map is a guide only.

Name from

Corre­spond­ing author (Name, Year)

Motani, 1999

Other languages



Lebenszeitraum in Million Jahren (Ma)

Start age: 242 Ma - End age: 89.8 Ma
Upper/Late Cretaceous
Lower/Early Cretaceous
Upper/Late Jurassic
Middle Jurassic
Lower/Early Jurassic
Upper/Late Triassic
Middle Triassic

Additional data by PBDB, License: CC BY

Motility: actively mobile
Environment: marine
Compositon of the remains:


Reference- and Source indication, Literature


Automatic Links to external internet sources (Responsibility is with the operator)

Search for taxonomy at
Search for taxonomy at Fossilworks
Search for taxonomy at The Taxonomicon

Next lower taxonomy level

On the same taxonomic level (siblings) (Count: 2)

Taxonomic assignment (138)

References by PBDB, License: CC BY

  • B. C. Moon, 2017 - A new phylogeny of ichthyosaurs (Reptilia: Diapsida) - Journal of Systematic Palaeontology (), - (journal article, English)
  • V. Fischer, 2014 - Ichthyosaurs from the French Rhaetian indicate a severe turnover across the Triassic-Jurassic boundary - Naturwissenschaften (101), 1027-1040 (journal article, English)
  • P. S. Druckenmiller, 2014 - An Upper Triassic (Norian) ichthyosaur (Reptilia, Ichthyopterygia) from northern Alaska and dietary insight based on gut contents - Journal of Vertebrate Paleontology (34), 1460-1465 (journal article, English)
  • N. B. Fröbisch, 2013 - Macropredatory ichthyosaur from the Middle Triassic and the origin of modern trophic networks - Proceedings of the National Academy of Sciences (110), 1393-1397 (journal article, English)
  • V. Fischer, 2013 - A basal thunnosaurian from Iraq reveals disparate phylogenetic origins for Cretaceous ichthyosaurs - Biology Letters (98), 20130- (journal article, English)
  • E. E. Maxwell, 2013 - Triassic ichthyopterygian assemblages of the Svalbard archipelago: a reassessment of taxonomy and distribution - GFF [Journal of the Geological Society of Sweden] (135), 85-94 (journal article, English)
  • C. Ji, 2013 - A new juvenile specimen of Guanlingasaurus (Ichthyosauria, Shastasauridae) from the Upper Triassic of southwestern China - Journal of Vertebrate Paleontology (33), 340-348 (journal article, English)
  • M. W. Maisch, 2010 - Phylogeny, systematics, and origin of the Ichthyosauria - the state of the art - Palaeodiversity (3), 151-214 (journal article, English)
  • Q.-H. Shang, 2009 - On the occurrence of the ichthyosaur Shastasaurus in the Guanling biota (Late Triassic), Guizhou, China - Vertebrata PalAsiatica (47), 178-193 (journal article, English)
  • X.-H. Chen, 2007 - A new species of Callawayia (Reptilia: Ichthyosauria) from the Late Triassic in Guanling, Guizhou - Geology in China (34), 974-982 (journal article, Chinese)
  • M. W. Maisch, 2006 - Cranial osteology of Guizhouicthyosaurus tangae (Reptilia: Ichthyosauria) from the Upper Triassic of China - Journal of Vertebrate Paleontology (26), 588-597 (journal article, English)
  • E. L. Nicholls, 2004 - Giant ichthyosaurs of the Triassic - a new species of Shonisaurus from the Pardonet Formation (Norian: Late Triassic) of British Columbia - Journal of Vertebrate Paleontology (24), 838-849 (journal article, English)
  • M. W. Maisch, 2003 - Observations on Triassic ichthyosaurs. Part X: The Lower Triassic Merriamosaurus from Spitzbergen - additional data on its anatomy and phylogenetic position - Neues Jahrbuch fur Geologie und Palaontologie, Abhandlungen (227), 93-137 (journal article, English)
  • C. McGowan, 2003 - Handbuch der Palaoherpetologie / Encyclopedia of Paleoherpetology Teil 8 / Part 8 Ichthyopterygia - (), 1-175 (book, English)
  • J. J. Sepkoski, Jr., 2002 - A compendium of fossil marine animal genera - Bulletins of American Paleontology (363), 1-560 (serial monograph, English)
  • M. W. Maisch, 2002 - Observations on Triassic ichthyosaurs. Part IX. The first associated skeletal remains of Merriamosaurus n. g. (Ichthyosauria, Lower Triassic) and their bearing on the systematic position of the Omphalosauria - Neues Jahrbuch fur Geologie und Palaontologie, Abhandlungen (226), 59-94 (journal article, English)
  • E. L. Nicholls, 2001 - A new genus of ichthyosaur from the Late Triassic Pardonet Formation of British Columbia: bridging the Triassic-Jurassic gap - Canadian Journal of Earth Sciences (38), 983-1002 (journal article, English)
  • M. W. Maisch, 2000 - The Ichthyosauria - Stuttgarter Beitrage zur Naturkunde, Serie B (298), 1-159- (journal article, English)
  • R. Motani, 1999 - Phylogeny of the Ichthyopterygia - Journal of Vertebrate Paleontology (19), 473-496 (journal article, English)
  • C. Mcgowan, 1994 - A new species of Shastasaurus (Reptilia: Ichthyosauria) from the Triassic of British Columbia: the most complete exemplar of the genus - Journal of Vertebrate Paleontology (14), 168-179 (journal article, English)
  • J. M. Mazin, 1993 - Palaeobiogeography of the Early and Late Triassic ichthyopterygia - Paleontologia Lombarda (2), 93-107 (journal article, English)
  • R. L. Carroll, 1988 - - Vertebrate Paleontology and Evolution (), 1-698 (compendium, English)
  • Z.-M. Dong, 1972 - An ichthyosaur fossil from the Qomolangma Feng (Mt. Everest) region - Gu ji zhui dong wu yu gu ren lei yan jiu suo ji kan (9), 7-10 (journal article, Chinese)
  • O. Kuhn, 1971 - - Die Saurier der deutschen Trias [Reptiles of the German Triassic] (), 1-105 (book, German)
  • O. P. Hay, 1930 - - Second Bibliography and Catalogue of the Fossil Vertebrata of North America (390), 1-1074 (book, English)
  • J. C. Merriam, 1902 - Triassic Ichthyopterygia from California and Nevada - University of California Publications Bulletin of the Department of Geology (3), 63-108 (journal article, English)
  • J. C. Merriam, 1895 - On some Reptilian Remains from the Triassic of Northern California - American Journal of Science (50), 55- (journal article, English)
  • H.-E. Sauvage, 1883 - Recherches sur les reptiles trouvés dans l'étage rhétien des environs d'Autun [Research on the reptiles found in the Rhaetian stage of the environs of Autun] - Annales des Sciences Géologiques (14), 1-44 (journal article, French)


GUSID (Global unique identifier short form) vM_NZpCvBU66hbQ71ymb_g
GUID (Global unique identifier) 66CDCFBC-AF90-4E05-BA85-B43BD7299BFE
Database ID 5765