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Nodosauridae

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Nodosaurids
Temporal range: Late Jurassic–Late Cretaceous, 155–66 Ma
Gargoyleosaurus skeleton cast
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: †Ornithischia
Clade: †Thyreophora
Clade: †Ankylosauria
Clade: †Euankylosauria
Family: †Nodosauridae
Marsh, 1890
Subgroups
Synonyms

Acanthopholididae Nopcsa, 1902
Acanthopholidae Nopcsa, 1917
?Hylaeosauridae Nopcsa, 1902
Palaeoscincidae Nopcsa, 1918
Panoplosauridae Nopcsa, 1929
Struthiosauridae Kuhn, 1966

Nodosauridae is a family of ankylosaurian dinosaurs known from the Late Jurassic to the Late Cretaceous periods in what is now Asia, Europe, North America, and possibly South America. While traditionally regarded as a monophyletic clade as the sister taxon to the Ankylosauridae, some analyses recover it as a paraphyletic grade leading to the ankylosaurids.

Description[edit]

The holotype of Borealopelta markmitchelli on display at the Royal Tyrrell Museum

Nodosaurids, like their sister group the ankylosaurids, were heavily armored dinosaurs adorned with rows of bony armor nodules and spines (osteoderms), which were covered in keratin sheaths. Nodosaurids, like other ankylosaurians, were small- to large-sized, heavily built, quadrupedal, herbivorous dinosaurs, possessing small, leaf-shaped teeth. Unlike ankylosaurids, nodosaurids lacked mace-like tail clubs, instead having more flexible tail tips. Many nodosaurids had spikes projecting outward from their shoulders. One particularly well-preserved nodosaurid "mummy", the holotype of Borealopelta markmitchelli, preserves a nearly complete set of armor in life position, as well as the keratin covering and mineralized remains of the underlying skin, which indicate reddish pigments in a countershading pattern.[1][2]

Classification[edit]

The family Nodosauridae was erected by Othniel Charles Marsh in 1890, and anchored on the genus Nodosaurus.[3][4]

The clade Nodosauridae was first informally defined by Paul Sereno in 1998 as "all ankylosaurs closer to Panoplosaurus than to Ankylosaurus," a definition followed by Vickaryous, Teresa Maryańska, and Weishampel in 2004. Vickaryous et al. considered two genera of nodosaurids to be of uncertain placement (incertae sedis): Struthiosaurus and Animantarx, and considered the most primitive member of the Nodosauridae to be Cedarpelta.[5]

Following the publication of the PhyloCode, Nodosauridae needed to be formally defined following certain parameters, including that the type genus Nodosaurus was required as an internal specifier. In formally naming Nodosauridae, Madzia and colleagues followed the previously established use for the clade, defining it as the largest clade including Nodosaurus textilis but not Ankylosaurus magniventris. As all phylogenies referenced included both Panoplosaurus and Nodosaurus within the same group relative to Ankylosaurus, the addition of another internal specifier was deemed unnecessary.

Nodosauridae is traditionally composed of the basal clade Polacanthinae (sometimes recovered outside of the Nodosauridae), as well as the Panoplosaurini and Struthiosaurini within the Nodosaurinae. Topology A below demonstrates these relationships, following the phylogenetic analyses of Rivera-Sylva and colleagues (2018), with clade names added by definition from Madzia et al. (2021).[6][7] However, in 2023, Raven and colleagues proposed an alternate phylogeny for nodosaurids; instead of the traditional dichotomous split between nodosaurids and ankylosaurids, their analyses resulted in a paraphyletic grade of these taxa comprising the monophyletic clades Panoplosauridae, Polacanthidae and Struthiosauridae. These results are displayed in Topology B below.[8][9] Corresponding clades are shown in matching colors for clarity, and ⊞ buttons can be clicked to expand nodes:

Topology A: Rivera-Sylva et al. (2018) dataset[6]
Ankylosauria
Nodosauridae
Ankylosauridae
⊞
⊟
Topology B: Raven et al. (2023) dataset[8]
Ankylosauria


Biogeography[edit]

Nodosaurids are known from diverse remains throughout Europe, Asia, and North America.[10]

Some Gondwanan ankylosaurs, including the Antarctican Antarctopelta and Argentinian Patagopelta, were originally regarded as belonging to the Nodosauridae, but later analyses provided support for them belonging to the Parankylosauria, a separate lineage of basal ankylosaurs restricted to the Southern Hemisphere.[11][12][13]

Chronostratigraphy of nodosaurid genera[1][3][5][14][15]
PaleogeneCretaceousJurassicOligoceneEocenePaleoceneLate CretaceousEarly CretaceousLate JurassicMiddle JurassicEarly JurassicDenversaurusPanoplosaurusEdmontoniaAnimantarxTexasetesStruthiosaurusHungarosaurusStegopeltaPawpawsaurusEuropeltaGlyptodontopeltaAhshislepeltaInvictarxRhadinosaurusDanubiosaurusNiobrarasaurusAcantholipanPeloroplitesNodosaurusZhejiangosaurusBorealopeltaSilvisaurusPriconodonPropanoplosaurusTatankacephalusSauropeltaAcanthopholisAnoplosaurusDongyangopeltaHoplitosaurusHorshamosaurusGastonia burgeiSauroplitesPolacanthusHylaeosaurusTaohelongMymoorapeltaGargoyleosaurusSarcolestesOligoceneEocenePaleoceneLate CretaceousEarly CretaceousLate JurassicMiddle JurassicEarly JurassicPaleogeneCretaceousJurassic

See also[edit]

References[edit]

  1. ^ a b Brown, C.M.; Henderson, D.M.; Vinther, J.; Fletcher, I.; Sistiaga, A.; Herrera, J.; Summons, R.E. (2017). "An Exceptionally Preserved Three-Dimensional Armored Dinosaur Reveals Insights into Coloration and Cretaceous Predator-Prey Dynamics". Current Biology. 27 (16): 2514–2521. doi:10.1016/j.cub.2017.06.071. PMID 28781051. S2CID 5182644.
  2. ^ Davis, Nicola (2017-08-03). "Heavily armoured dinosaur had ginger camouflage to deter predators – study". The Guardian. ISSN 0261-3077. Retrieved 2017-12-01.
  3. ^ a b Kirkland, J. I.; Alcalá, L.; Loewen, M. A.; Espílez, E.; Mampel, L.; Wiersma, J. P. (2013). Butler, Richard J (ed.). "The Basal Nodosaurid Ankylosaur Europelta carbonensis n. gen., n. sp. From the Lower Cretaceous (Lower Albian) Escucha Formation of Northeastern Spain". PLOS ONE. 8 (12): e80405. Bibcode:2013PLoSO...880405K. doi:10.1371/journal.pone.0080405. PMC 3847141. PMID 24312471.
  4. ^ Burns, Michael E. (2008). "Taxonomic utility of ankylosaur (Dinosauria, Ornithischia) osteoderms: Glyptodontopelta mimus Ford, 2000: a test case". Journal of Vertebrate Paleontology. 28 (4): 1102–1109. doi:10.1671/0272-4634-28.4.1102. S2CID 140672072.
  5. ^ a b Vickaryous, M. K., Maryanska, T., and Weishampel, D. B. (2004). Chapter Seventeen: Ankylosauria. in The Dinosauria (2nd edition), Weishampel, D. B., Dodson, P., and Osmólska, H., editors. University of California Press.
  6. ^ a b Rivera-Sylva, H.E.; Frey, E.; Stinnesbeck, W.; Carbot-Chanona, G.; Sanchez-Uribe, I.E.; Guzmán-Gutiérrez, J.R. (2018). "Paleodiversity of Late Cretaceous Ankylosauria from Mexico and their phylogenetic significance". Swiss Journal of Palaeontology. 137: 83–93. doi:10.1007/s13358-018-0153-1. S2CID 134924657.
  7. ^ Madzia, D.; Arbour, V.M.; Boyd, C.A.; Farke, A.A.; Cruzado-Caballero, P.; Evans, D.C. (2021). "The phylogenetic nomenclature of ornithischian dinosaurs". PeerJ. 9: e12362. doi:10.7717/peerj.12362. PMC 8667728. PMID 34966571.
  8. ^ a b Raven, T. J.; Barrett, P. M.; Joyce, C. B.; Maidment, S. C. R. (2023). "The phylogenetic relationships and evolutionary history of the armoured dinosaurs (Ornithischia: Thyreophora)". Journal of Systematic Palaeontology. 21 (1). 2205433. doi:10.1080/14772019.2023.2205433.
  9. ^ Xing, Lida; Niu, Kecheng; Mallon, Jordan; Miyashita, Tetsuto (2023). "A new armored dinosaur with double cheek horns from the early Late Cretaceous of southeastern China". Vertebrate Anatomy Morphology Palaeontology. 11. doi:10.18435/vamp29396 (inactive 2024-03-23). ISSN 2292-1389.{{cite journal}}: CS1 maint: DOI inactive as of March 2024 (link)
  10. ^ Carpenter, Kenneth; Breithaupt, Brent (1986). "Latest Cretaceous Occurrence of Nodosaurid Ankylosaurs (Dinosauria, Ornithischia) in Western North America and the Gradual Extinction of the Dinosaurs". Journal of Vertebrate Paleontology. 6 (3): 251–257. doi:10.1080/02724634.1986.10011619. ISSN 0272-4634. JSTOR 4523098.
  11. ^ Soto-Acuña, Sergio; Vargas, Alexander O.; Kaluza, Jonatan; Leppe, Marcelo A.; Botelho, Joao F.; Palma-Liberona, José; Simon-Gutstein, Carolina; Fernández, Roy A.; Ortiz, Héctor; Milla, Verónica; Aravena, Bárbara (2021-12-01). "Bizarre tail weaponry in a transitional ankylosaur from subantarctic Chile". Nature. 600 (7888): 259–263. Bibcode:2021Natur.600..259S. doi:10.1038/s41586-021-04147-1. ISSN 1476-4687. PMID 34853468. S2CID 244799975.
  12. ^ Riguetti, Facundo; Pereda-Suberbiola, Xabier; Ponce, Denis; Salgado, Leonardo; Apesteguía, Sebastián; Rozadilla, Sebastián; Arbour, Victoria (2022-12-31). "A new small-bodied ankylosaurian dinosaur from the Upper Cretaceous of North Patagonia (Río Negro Province, Argentina)". Journal of Systematic Palaeontology. 20 (1): 2137441. doi:10.1080/14772019.2022.2137441. ISSN 1477-2019. S2CID 254212751.
  13. ^ Soto Acuña, Sergio; Vargas, Alexander O.; Kaluza, Jonatan (2024). "A new look at the first dinosaur discovered in Antarctica: reappraisal of Antarctopelta oliveroi (Ankylosauria: Parankylosauria)". Advances in Polar Science. 35 (1): 78–107. doi:10.12429/j.advps.2023.0036.
  14. ^ Arbour, V.M.; Currie, P.J. (2016). "Systematics, phylogeny and palaeobiogeography of the ankylosaurid dinosaurs". Journal of Systematic Palaeontology. 14 (5): 385–444. doi:10.1080/14772019.2015.1059985. S2CID 214625754.
  15. ^ McDonald, A.T.; Wolfe, D.G. (2018). "A new nodosaurid ankylosaur (Dinosauria: Thyreophora) from the Upper Cretaceous Menefee Formation of New Mexico". PeerJ. 6: 6:e5435. doi:10.7717/peerj.5435. PMC 6110256. PMID 30155354.

Further reading[edit]

  • Carpenter, K. (2001). "Phylogenetic analysis of the Ankylosauria." In Carpenter, K., (ed.) 2001: The Armored Dinosaurs. Indiana University Press, Bloomington & Indianapolis, 2001, pp. xv-526
  • Thompson, R.S.; Parish, J.C.; Maidment, S.C.R.; Barrett, P.M. (2012). "Phylogeny of the ankylosaurian dinosaurs (Ornithischia: Thyreophora)". Journal of Systematic Palaeontology. 10 (2): 301–312. doi:10.1080/14772019.2011.569091. S2CID 86002282.
  • Arbour, V.M.; Zanno, L.E.; Gates, T. (2016). "Ankylosaurian dinosaur palaeoenvironmental associations were influenced by extirpation, sea-level fluctuation, and geodispersal". Palaeogeography, Palaeoclimatology, Palaeoecology. 449: 289–299. doi:10.1016/j.palaeo.2016.02.033.

External links[edit]

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