The holotype specimen, PRC 150, was excavated in 2012 and prepared for the next five years. It consists of a postcranial specimen that is more than 50% complete. Other referred specimens include an isolated dentary briefly described in 2014 and pes material.[2] Several more specimens remain unprepared as of 2023.[1]
These bones were considered to represent a new genus and species, Minimocursor phunoiensis, in 2023. The generic name, "Minimocursor", combines the Latin words "minimus", meaning "the smallest", in reference to the holotype's small size, and "cursor", meaning "runner". The specific name, "phunoiensis", refers to the excavation site, Phu Noi.[1]
Descriptionedit
The not-fully-grown holotype has been estimated as 0.6 metres (2.0 ft) long, similar to the size of Agilisaurus. Larger remains hint that the fully-grown animal would have been 2 metres (6.6 ft) long.[1]
Manitkoon et al. (2023) added Minimocursor to a phylogenetic analysis, adding the holotype, pes, and dentary as separate operational taxonomic units (OTUs). All three claded together at the base of the Neornithischia, outside Thescelosauridae and Cerapoda, making it the first basal neornithischian known from Southeast Asia. Their cladogram is shown below:[1]
^ abcdefManitkoon, Sita; Deesri, Uthumporn; Khalloufi, Bouziane; Nonsrirach, Thanit; Suteethorn, Varavudh; Chanthasit, Phornphen; Boonla, Wansiri; Buffetaut, Eric (2023). "A New Basal Neornithischian Dinosaur from the Phu Kradung Formation (Upper Jurassic) of Northeastern Thailand". Diversity. 15 (7): 851. doi:10.3390/d15070851.
^Buffetaut, Eric; Suteethorn, Suravech; Suteethorn, Varavudh; Deesri, Uthumporn; Tong, Haiyan (2014). "Preliminary note on a small ornithopod dinosaur from the Phu Kradung Formation (terminal Jurassic – basal Cretaceous) of Phu Noi, north-eastern Thailand" (PDF). Journal of Science and Technology, Mahasarakham University. 33 (4): 344–347.
^Martin, Jeremy E.; Suteethorn, S.; Lauprasert, K. (February 2019). "A new freshwater teleosaurid from the Jurassic of northeastern Thailand" (PDF). Journal of Vertebrate Paleontology. 64 (2): 239–260. doi:10.1080/02724634.2018.1549059. S2CID 91988192.
^Moore, Andrew J.; Barrett, Paul M.; Upchurch, Paul; Liao, Chun-Chi; Ye, Yong; Hao, Baoqiao; Xu (2023). "Re-assessment of the Late Jurassic eusauropod Mamenchisaurus sinocanadorum Russell and Zheng, 1993, and the evolution of exceptionally long necks in mamenchisaurids". Journal of Systematic Palaeontology. 21 (1). doi:10.1080/14772019.2023.2171818. S2CID 257573094.
minimocursor, meaning, smallest, runner, genus, basal, neornithischian, dinosaur, from, late, jurassic, kradung, formation, thailand, type, species, phunoiensis, temporal, range, late, jurassic, tithonian, preꞒ, skeletal, diagrams, showing, holotype, specimen,. Minimocursor meaning smallest runner is a genus of basal neornithischian dinosaur from the Late Jurassic Phu Kradung Formation of Thailand The type species is Minimocursor phunoiensis 1 MinimocursorTemporal range Late Jurassic Tithonian PreꞒ Ꞓ O S D C P T J K Pg N Skeletal diagrams showing the holotype specimen above and the holotype with assigned elements below Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClade DinosauriaClade OrnithischiaClade NeornithischiaGenus MinimocursorManitkoon et al 2023Type species Minimocursor phunoiensisManitkoon et al 2023 Contents 1 Discovery and naming 2 Description 3 Phylogeny 4 Palaeoenvironment 5 ReferencesDiscovery and naming edit nbsp nbsp Holotype skeleton shown from the left and right The holotype specimen PRC 150 was excavated in 2012 and prepared for the next five years It consists of a postcranial specimen that is more than 50 complete Other referred specimens include an isolated dentary briefly described in 2014 and pes material 2 Several more specimens remain unprepared as of 2023 1 These bones were considered to represent a new genus and species Minimocursor phunoiensis in 2023 The generic name Minimocursor combines the Latin words minimus meaning the smallest in reference to the holotype s small size and cursor meaning runner The specific name phunoiensis refers to the excavation site Phu Noi 1 Description editThe not fully grown holotype has been estimated as 0 6 metres 2 0 ft long similar to the size of Agilisaurus Larger remains hint that the fully grown animal would have been 2 metres 6 6 ft long 1 Phylogeny edit nbsp Life restoration showing protofeathers based on KulindadromeusManitkoon et al 2023 added Minimocursor to a phylogenetic analysis adding the holotype pes and dentary as separate operational taxonomic units OTUs All three claded together at the base of the Neornithischia outside Thescelosauridae and Cerapoda making it the first basal neornithischian known from Southeast Asia Their cladogram is shown below 1 Neornithischia Lesothosaurus nbsp Agilisaurus nbsp Hexinlusaurus nbsp Yandusaurus nbsp Kulindadromeus nbsp Minimocursor nbsp JeholosaurusYueosaurus nbsp Nanosaurus nbsp Thescelosauridae nbsp Hypsilophodon nbsp Cerapoda nbsp Palaeoenvironment edit nbsp Phu Kradung Formation palaeoenvironment with Minimocursor group at leftThe Phu Kradung Formation preserves a diverse assemblage of animals Minimocursor would have lived alongside several fish and turtles an indeterminate pterosaur an indeterminate stegosaur an indeterminate metriacanthosaurid an indeterminate mamenchisaurid and the thalattosuchian Indosinosuchus 1 3 4 References edit a b c d e f Manitkoon Sita Deesri Uthumporn Khalloufi Bouziane Nonsrirach Thanit Suteethorn Varavudh Chanthasit Phornphen Boonla Wansiri Buffetaut Eric 2023 A New Basal Neornithischian Dinosaur from the Phu Kradung Formation Upper Jurassic of Northeastern Thailand Diversity 15 7 851 doi 10 3390 d15070851 Buffetaut Eric Suteethorn Suravech Suteethorn Varavudh Deesri Uthumporn Tong Haiyan 2014 Preliminary note on a small ornithopod dinosaur from the Phu Kradung Formation terminal Jurassic basal Cretaceous of Phu Noi north eastern Thailand PDF Journal of Science and Technology Mahasarakham University 33 4 344 347 Martin Jeremy E Suteethorn S Lauprasert K February 2019 A new freshwater teleosaurid from the Jurassic of northeastern Thailand PDF Journal of Vertebrate Paleontology 64 2 239 260 doi 10 1080 02724634 2018 1549059 S2CID 91988192 Moore Andrew J Barrett Paul M Upchurch Paul Liao Chun Chi Ye Yong Hao Baoqiao Xu 2023 Re assessment of the Late Jurassic eusauropod Mamenchisaurus sinocanadorum Russell and Zheng 1993 and the evolution of exceptionally long necks in mamenchisaurids Journal of Systematic Palaeontology 21 1 doi 10 1080 14772019 2023 2171818 S2CID 257573094 Portals nbsp Dinosaurs nbsp Thailand Retrieved from https en wikipedia org w index php title Minimocursor amp oldid 1209206803, wikipedia, wiki, book, books, library,
