Zby
{{Short description|Genus of sauropod dinosaur}}
{{Use dmy dates|date=March 2024}}
{{Automatic taxobox
| taxon = Zby
| fossil_range = Late Jurassic, {{fossilrange|Kimmeridgian}}
| image = Zby tooth.png
| image_caption = Holotype tooth.
| authority = Mateus, Mannion & Upchurch, 2014
| type_species = {{extinct}}Zby atlanticus
| type_species_authority = Mateus, Mannion & Upchurch, 2014
}}
Zby is an extinct genus of turiasaurian sauropod dinosaur known from the Late Jurassic, particularly late Kimmeridgian stage of the Lourinhã Formation, in central west Portugal. It contains a single species, Zby atlanticus.{{Cite journal | doi = 10.1080/02724634.2013.822875| title = Zby atlanticus, a new turiasaurian sauropod (Dinosauria, Eusauropoda) from the Late Jurassic of Portugal| journal = Journal of Vertebrate Paleontology| volume = 34| issue = 3| pages = 618| year = 2014| last1 = Mateus | first1 = O. V. | last2 = Mannion | first2 = P. D. | last3 = Upchurch | first3 = P. | bibcode = 2014JVPal..34..618M| s2cid = 59387149 | url = https://www.researchgate.net/publication/262579920_Zby_atlanticus_a_New_Turiasaurian_Sauropod_Dinosauria_Eusauropoda_from_the_Late_Jurassic_of_Portugal}} It is named after {{ill|Georges Zbyszewski|pt}}, who studied the geology and paleontology of Portugal.
Description
File:Lourinhã Museum entrance.jpg
Zby was first described and named by Octávio Mateus, Philip D. Mannion and Paul Upchurch in 2014 and the type species is Zby atlanticus, although it was initially thought to be Turiasaurus riodevensis.{{cite journal | last=Mateus | first=O. | title=The sauropod dinosaur Turiasaurus riodevensis in the Late Jurassic of Portugal | journal=Journal of Vertebrate Paleontology | volume=29 | date=23 January 2020 | url=https://docentes.fct.unl.pt/omateus/publications/sauropod-dinosaur-turiasaurus-riodevensis-late-jurassic-portugal | page=144A | access-date=23 January 2020 | archive-date=7 October 2019 | archive-url=https://web.archive.org/web/20191007020440/http://docentes.fct.unl.pt/omateus/publications/sauropod-dinosaur-turiasaurus-riodevensis-late-jurassic-portugal | url-status=live }} It is known solely from its holotype, a closely associated partial skeleton including a complete tooth with root, a fragment of cervical neural arch, an anterior chevron, and an almost complete right pectoral girdle and forelimb. Zby is differentiated from other sauropods based on four autapomorphies, including a prominent posteriorly projecting ridge on the humerus at the level of the deltopectoral crest. Zby is suggested to be closely related to T. riodevensis from Spain and Portugal, based on its tooth morphology, extreme anteroposterior compression of the proximal end of the radius, and strong beveling of the lateral half of the distal end of the radius, while some other forelimb traits distinguish these two genera. Nearly all other anatomical features suggest that Zby is a non-neosauropod eusauropod, confirming its position as a turiasaurian. Zby is estimated to measure around {{convert|16|to|18|metres|feet}} in length.
Diet
Zby was mostly a herbivorous dinosaur. It was unknown on what type of vegetation it consumed on, it most likely ate the ones that herbivore dinosaurs ate, such as Cycads, ferns, and low-lying vegetation.
References
{{Reflist}}
{{Sauropodomorpha|B.}}
{{Taxonbar|from=Q16778336}}
Category:Kimmeridgian dinosaurs