Gareth J. Dyke

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Gareth John Dyke is a paleontologist whose work is concerned with the evolutionary history of birds and their dinosaurian relatives. His specific research interests include the phylogenetics of birds, the functional morphology of aves and non-avian dinosaurs, as well as the paleoenvironments of fossil vertebrates. [1]

Contents

The extinct shark Dykeius is named in his honor. [2]

Early life and education

From 2000 to 2002, he was a Chapman Postdoctoral Fellow in Ornithology at the American Museum of Natural History in New York. [3]

Career

Formerly a Senior Lecturer in Vertebrate Paleontology at the University of Southampton, he is currently a researcher within the Department of Evolutionary Zoology and Human Biology at the University of Debrecen, Hungary. [4] He currently holds the title of Research Associate at both the American Museum of Natural History and the National Museum of Ireland. [3]

His main work concerns research on dinosaurs, but also focuses on paleornithology and pterosaurs. He is a strong proponent of the view of a dinosaurian origin of birds. [5]

Past Research

Dyke's research is concerned with "the evolutionary history of birds and their dinosaurian relatives" and encompasses anatomy, phylogenetics, functional morphology, paleoecology, taphonomy, sedimentology, and aerodynamics as well as the analysis and interpretation of large fossil-record datasets.

He has published in Scientific American, Science, and Nature as well as in other leading journals in both biology and earth sciences. He describes his work as being located on "the interface between these two fields". [3]

In 1999, Dyke and a colleague reported that while the "traditional view, based largely on the fossil record," was that most modern birds "did not appear until the Tertiary, after the end-Cretaceous extinction event," new molecular divergence data "suggested that most, or all, of the major clades, were present in the Cretaceous." [6]

In a 2002 article, Dyke and a colleague reported that recent data had yielded "[d]ramatic new perceptions of the life history, growth and development of early birds." [7]

Dyke and three colleagues reported in 2005 that while there has been considerable uncertainty as to the reliability of the fossil record of Mesozoic birds, their analysis had gone "some way towards" resolving the uncertainty. [8]

In 2005, the Times of London quoted Dyke as saying that "fossil evidence that [predatory] dinosaurs were feathered is now 'irrefutable'." [9]

In a 2007 article, Dyke and a colleague described a "small galliform bird from the Lower Eocene Fur Formation in northwestern Denmark." [10]

In 2008, Dyke was one of a team of researchers who discovered "the oldest known parrot fossil – a wing bone from a bird that lived 55 million years ago." The parrot was discovered in Denmark, where at where the climate was tropical at the time. The new species was named Mopsitta tanta, or the Danish Blue Parrot. [11] [12]

Dyke and three colleagues reported in 2009 "that low-cost analysis of satellite image data (derived from Landsat ETM+) can be used efficiently for the 'remote prospecting' of a large field area." [13]

As reported in 2009, Dyke and four colleagues discovered the first dinosaur fossil to be found in Bulgaria. [14]

In 2010, Dyke and a colleague reported in Science Magazine on the flight capabilities of fossil birds Archaeopteryx and Confuciusornis. [15]

In a 2010 Scientific American article entitled "Winged Victory: Modern Birds Now Found to Have Been Contemporaries of Dinosaurs," Dyke reported that "[m]odern birds, long thought to have arisen only after the dinosaurs perished, turn out to have lived alongside them." Noting that "molecular studies and a smattering of equivocal fossil finds have hinted that modern birds might have" originated earlier than previously thought, a recent analysis of "fossils of ancient modern birds confirm this earlier origin, raising the question of why these birds, but not the archaic ones, survived the mass extinction." [16]

In a 2011 Scientific American article entitled "The Dinosaur Baron of Transylvania", Dyke wrote about Franz Nopcsa, "a turn-of-the-century Transylvanian nobleman who loved fossils" and "is well known for having discovered and described some of the first dinosaurs from Central Europe," and whose "theories about dinosaur evolution turn out to have been decades ahead of their time... Only in the past few years, with new fossil discoveries, have scientists begun to appreciate how right he was." [17] Also in 2011, Dyke and Evgeny Kurochkin described Eostrix tsaganica found in Mongolia, the first find of this primitive owl in Asia. [18]

It was reported in January 2013 that a European/Chinese team including Dyke had discovered "a new bird-like dinosaur from the Jurassic period," which challenged "widely accepted theories on the origin of flight." He was quoted as saying that the discovery "sheds further doubt on the theory that the famous fossil Archaeopteryx – or 'first bird' as it is sometimes referred to – is pivotal in the evolution of modern birds." [19]

In a 2013 article for Nature, Dyke and five colleagues reported that while the "[d]iscovery of feathered theropod dinosaurs in China during the past two decades have prompted dramatic revisions of our ideas of the evolution of birds and the origins of flight — including the suggestion that the iconic fossil Archaeopteryx might have lain some distance from the ancestry of modern birds," a new fossil discovery "restores Archaeopteryx as an early diverging avialan." [20]

Dyke was part of a British/Romanian/Brazilian team that discovered "a new kind of pterosaur, a flying reptile from the time of the dinosaurs," as reported in February 2013. Dyke was quoted as saying that experts have long disagreed about "the lifestyle and behavior of azhdarchids", and that the discovery supported the contention "that azhdarchids walked through forests, plains, and other places in search of small animal prey." [21]

In 2013, Dyke and seven colleagues reported "the first evidence for a nesting colony of Mesozoic birds on Gondwana." [22]

In 2013, Dyke and three colleagues described "a new taxon of medium-sized...azhdarchid pterosaur from the Upper Cretaceous Transylvanian Basin (Sebeş Formation) of Romania." It was "the most complete European azhdarchid yet reported." [23]

In a 2013 article, Dyke and two colleagues argued that bone measurements "cannot be used to distinguish flight modes in extant birds, and so cannot be used to infer flight mode in fossil forms," and that "more data from fossil birds...is required if we are to be able to predict the flight modes of extinct birds." [24]

Latest research

As of September 2013, Dyke's current research subjects were the anatomy and evolution of Lower Eocene birds, the Cretaceous paleoenvironments of Transylvania, the evolution of wings in dinosaurs and birds, Pterosaur flight biomechanics, the diversity and disparity of Cretaceous birds, and the evolution and diversity of galliform birds. At the time he was working on books about fossils of the Carpathian Basin and about "Nopcsa, the Dinosaur Baron of Transylvania". [3]

Other professional activities

Dyke is on the Editorial Board of PLOS ONE, is Editor-in-Chief of Historical Biology, and is on the Reviewing editorial board of Cell Reports. [3]

Publications

Articles

Books

Related Research Articles

<i>Archaeopteryx</i> Extinct genus of bird-like dinosaurs

Archaeopteryx, sometimes referred to by its German name, "Urvogel" is a genus of bird-like dinosaurs. The name derives from the ancient Greek ἀρχαῖος (archaīos), meaning "ancient", and πτέρυξ (ptéryx), meaning "feather" or "wing". Between the late 19th century and the early 21st century, Archaeopteryx was generally accepted by palaeontologists and popular reference books as the oldest-known bird. Older potential avialans have since been identified, including Anchiornis, Xiaotingia, and Aurornis.

<span class="mw-page-title-main">Pterosaur</span> Flying reptiles of the extinct clade or order Pterosauria

Pterosaurs are an extinct clade of flying reptiles in the order Pterosauria. They existed during most of the Mesozoic: from the Late Triassic to the end of the Cretaceous. Pterosaurs are the earliest vertebrates known to have evolved powered flight. Their wings were formed by a membrane of skin, muscle, and other tissues stretching from the ankles to a dramatically lengthened fourth finger.

<i>Confuciusornis</i> Extinct genus of birds

Confuciusornis is a genus of basal crow-sized avialan from the Early Cretaceous Period of the Yixian and Jiufotang Formations of China, dating from 125 to 120 million years ago. Like modern birds, Confuciusornis had a toothless beak, but closer and later relatives of modern birds such as Hesperornis and Ichthyornis were toothed, indicating that the loss of teeth occurred convergently in Confuciusornis and living birds. It was thought to be the oldest known bird to have a beak, though this title now belongs to an earlier relative Eoconfuciusornis. It was named after the Chinese moral philosopher Confucius. Confuciusornis is one of the most abundant vertebrates found in the Yixian Formation, and several hundred complete specimens have been found.

<i>Aralosaurus</i> Extinct genus of dinosaurs

Aralosaurus was a genus of hadrosaurid dinosaur that lived during the Late Cretaceous in what is now Kazakhstan. It is known only by a posterior half of a skull and some post-cranial bones found in the Bostobe Formation in rocks dated from the Upper Santonian-Lower Campanian boundary, at about 83.6 Ma. Only one species is known, Aralosaurus tuberiferus, described by Anatoly Konstantinovich Rozhdestvensky in 1968. The genus name means Aral Sea lizard, because it was found to the northeast of the Aral Sea. The specific epithet tuberiferus means bearing a tuber because the posterior part of the nasal bone rises sharply in front of the orbits like an outgrowth. Aralosaurus was originally reconstituted with a nasal arch similar to that of North American Kritosaurus. For many years, Aralosaurus was thus placed in the clade of the Hadrosaurinae. This classification was invalidated in 2004, following the re-examination of the skull of the animal which allowed to identify in Aralosaurus many typical characters of Lambeosaurinae. In particular, this study revealed that Aralosaurus had a hollow bony structure located far in front of the orbits, which communicated with the respiratory tract. This structure being broken at its base, its shape and size remains undetermined. More recently, Aralosaurus has been identified as the most basal Lambeosaurinae, and placed with its close relative Canardia from the upper Maastrichtian of France in the new clade of Aralosaurini.

<span class="mw-page-title-main">Darren Naish</span> British palaeontologist and science writer (born 1975)

Darren William Naish is a British vertebrate palaeontologist, author and science communicator.

<span class="mw-page-title-main">Azhdarchidae</span> Family of large azhdarchoid pterosaurs

Azhdarchidae is a family of pterosaurs known primarily from the Late Cretaceous Period, though an isolated vertebra apparently from an azhdarchid is known from the Early Cretaceous as well. Azhdarchids are mainly known for including some of the largest flying animals discovered, but smaller cat-size members have also been found. Originally considered a sub-family of Pteranodontidae, Nesov (1984) named the Azhdarchinae to include the pterosaurs Azhdarcho, Quetzalcoatlus, and Titanopteryx. They were among the last known surviving members of the pterosaurs, and were a rather successful group with a worldwide distribution. Previously it was thought that by the end of the Cretaceous, most pterosaur families except for the Azhdarchidae disappeared from the fossil record, but recent studies indicate a wealth of pterosaurian fauna, including pteranodontids, nyctosaurids, tapejarids and several indeterminate forms. In several analyses, some taxa such as Navajodactylus, Bakonydraco and Montanazhdarcho were moved from Azhdarchidae to other clades.

<i>Jeholornis</i> Extinct genus of dinosaurs

Jeholornis is a genus of avialan dinosaurs that lived between approximately 122 and 120 million years ago during the early Cretaceous Period in China. Fossil Jeholornis were first discovered in the Jiufotang Formation in Hebei Province, China and additional specimens have been found in the older Yixian Formation.

<i>Jixiangornis</i> Extinct genus of dinosaurs

Jixiangornis is a genus of basal avialan dinosaurs from the Early Cretaceous. Like later avialans, it had no teeth, but it also had a long tail, unlike modern birds. Since teeth were still present in some more derived short-tailed avialans, Jixiangornis seems to have evolved its toothlessness independently of modern birds. The long forelimb indicates at least some aerial ability. Jixiangornis is currently known only from a single specimen, a complete but juvenile skeleton. The fossil was found in the Yixian Formation near Beipiao City, western Liaoning, China.

<i>Hatzegopteryx</i> Genus of large azhdarchid pterosaur from the Late Cretaceous

Hatzegopteryx is a genus of azhdarchid pterosaur found in the late Maastrichtian deposits of the Densuş Ciula Formation, an outcropping in Transylvania, Romania. It is known only from the type species, Hatzegopteryx thambema, named by Buffetaut et al. in 2002 based on parts of the skull and humerus. Additional specimens, including a neck vertebra, were later placed in the genus, representing a range of sizes. The largest of these remains indicate it was among the biggest pterosaurs, with an estimated wingspan of 10 to 12 metres.

<i>Phosphatodraco</i> Late Cretaceous genus of pterosaur

Phosphatodraco is a genus of azhdarchid pterosaur that lived during the Late Cretaceous of what is now Morocco. In 2000, a pterosaur specimen consisting of five cervical (neck) vertebrae was discovered in the Ouled Abdoun Phosphatic Basin. The specimen was made the holotype of the new genus and species Phosphatodraco mauritanicus in 2003; the genus name means "dragon from the phosphates", and the specific name refers to the region of Mauretania. Phosphatodraco was the first Late Cretaceous pterosaur known from North Africa, and the second pterosaur genus described from Morocco. It is one of the only known azhdarchids preserving a relatively complete neck, and was one of the last known pterosaurs. Additional cervical vertebrae have since been assigned to the genus, and it has been suggested that fossils of the pterosaur Tethydraco represent wing elements of Phosphatodraco.

<span class="mw-page-title-main">Maniraptoriformes</span> Clade of dinosaurs

Maniraptoriformes is a clade of dinosaurs with pennaceous feathers and wings that contains ornithomimosaurs and maniraptorans. This group was named by Thomas Holtz, who defined it as "the most recent common ancestor of Ornithomimus and birds, and all descendants of that common ancestor."

<span class="mw-page-title-main">Avialae</span> Clade including all birds and their ancestors

Avialae is a clade containing the only living dinosaurs, the birds, and their ancestors. It is usually defined as all theropod dinosaurs more closely related to birds (Aves) than to deinonychosaurs, though alternative definitions are occasionally used.

<span class="mw-page-title-main">Confuciusornithidae</span> Extinct family of dinosaurs

Confuciusornithidae is an extinct family of pygostylian avialans known from the Early Cretaceous, found in northern China. They are commonly placed as a sister group to Ornithothoraces, a group that contains all extant birds along with their closest extinct relatives. Confuciusornithidae contains four genera, possessing both shafted and non-shafted (downy) feathers. They are also noted for their distinctive pair of ribbon-like tail feathers of disputed function.

<span class="mw-page-title-main">Paraves</span> Clade of all dinosaurs that are more closely related to birds than to oviraptorosaurs

Paraves are a widespread group of theropod dinosaurs that originated in the Middle Jurassic period. In addition to the extinct dromaeosaurids, troodontids, anchiornithids, and possibly the scansoriopterygids, the group also contains the avialans, which include diverse extinct taxa as well as the over 10,000 species of living birds. Basal members of Paraves are well known for the possession of an enlarged claw on the second digit of the foot, which was held off the ground when walking in some species. A number of differing scientific interpretations of the relationships between paravian taxa exist. New fossil discoveries and analyses make the classification of Paraves an active subject of research.

<i>Sinornis</i> Extinct genus of birds

Sinornis is a genus of enantiornithean birds from the Lower Cretaceous Jiufotang Formation of the People's Republic of China.

Samrukia is a genus of large Cretaceous pterosaurs known only from a single lower jaw discovered in Kazakhstan. The holotype and only known specimen was collected from the Santonian-Campanian age Bostobynskaya Formation in Kyzylorda District. It was described by Darren Naish, Gareth Dyke, Andrea Cau, François Escuillié, and Pascal Godefroit in 2012, and the type species is named Samrukia nessovi. The species is named after Lev Nessov, a paleontologist, and the genus is named after Samruk, a magical bird of Kazakh folklore.

<i>Eosinopteryx</i> Extinct genus of dinosaurs

Eosinopteryx is an extinct genus of theropod dinosaurs known to the Late Jurassic epoch of China. It contains a single species, Eosinopteryx brevipenna.

<i>Aurornis</i> Extinct genus of dinosaurs

Aurornis is an extinct genus of anchiornithid theropod dinosaurs from the Jurassic period of China. The genus Aurornis contains a single known species, Aurornis xui. Aurornis xui may be the most basal ("primitive") avialan dinosaur known to date, and it is one of the earliest avialans found to date. The fossil evidence for the animal pre-dates that of Archaeopteryx lithographica, often considered the earliest bird species, by about 10 million years.

<span class="mw-page-title-main">Anchiornithidae</span> Extinct family of dinosaurs

Anchiornithidae is a family of small paravian dinosaurs. Anchiornithids have been classified at varying positions in the paravian tree, with some scientists classifying them as a distinct family, a basal subfamily of Troodontidae, members of Archaeopterygidae, or an assemblage of dinosaurs that are an evolutionary grade within Avialae or Paraves.

The Sebeș Formation is a geological formation in Romania. It is of Maastrichtian age. It is laterally equivalent to the Sard Formation. The base of the formation consists of claystones interbedded with sandstones and conglomerates. It is well known for its fossils which form a component of the Hațeg Island fauna.

References

  1. "Gareth J. Dyke". alaeo-electronica.org. Archived from the original on 2 December 2013. Retrieved 22 November 2013.
  2. "Dykeius garethi | Shark-References". shark-references.com. Retrieved 2 December 2023.
  3. 1 2 3 4 5 6 "Gareth Dyke". Ocean and Earth Science, National Oceanography Centre Southampton. Archived from the original on 9 June 2013. Retrieved 16 July 2013.
  4. "Dr Gareth Dyke". University of Debrecen. Archived from the original on 30 July 2016. Retrieved 14 September 2016.
  5. Dyke G.J. & Kaiser G.W., Living Dinosaurs: The Evolutionary History of Modern Birds, John Wiley & Sons, London, 2011.
  6. Dyke, Gareth; & Gerald Mayr (1999). "Did parrots exist in the Cretaceous period?". Nature. 399 (6734): 317–318. Bibcode:1999Natur.399..317D. doi:10.1038/20583. S2CID   204993284.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  7. Chiappel, Luis M.; Dyke, Gareth J. (November 2002). "The Mesozoic radiation of birds". Annual Review of Ecology and Systematics. 33: 91–124. doi:10.1146/annurev.ecolsys.33.010802.150517.
  8. Fountaine, Toby M. R.; Benton, Michael J.; Dyke, Gareth J.; Nudds, Robert L. (2005). "The quality of the fossil record of Mesozoic birds" (PDF). Proceedings of the Royal Society B: Biological Sciences. 272 (1560): 289–294. doi:10.1098/rspb.2004.2923. PMC   1634967 . PMID   15705554. Archived (PDF) from the original on 25 June 2014. Retrieved 22 November 2013.
  9. "According to paleontologist Gareth Dyke, "fossil evidence". Archived from the original on 2 December 2013. Retrieved 22 November 2013.
  10. Lindow, B.E.K.; & Dyke, G.J. (12 March 2007). "A small galliform bird from the Lower Eocene Fur Formation, north-western Denmark" (PDF). Bulletin of the Geological Society of Denmark. Archived (PDF) from the original on 4 December 2013. Retrieved 22 November 2013.{{cite web}}: CS1 maint: multiple names: authors list (link)
  11. "Two New Parrots (Psittaciformes)". Archived from the original on 2 December 2013. Retrieved 22 November 2013.
  12. Dyke, Gareth J. (1 January 2002). "Should Paleontologists Use "Phylogenetic" Nomenclature?". Journal of Paleontology. 76 (5): 793–796. doi:10.1017/S0022336000037471. JSTOR   1307193. S2CID   232349829.
  13. "164.fm" (PDF). Archived (PDF) from the original on 4 March 2016. Retrieved 18 December 2021.
  14. Mateus, O., Dyke, G.J., Motchurova-Dekova, N., Kamenov, G.D. & Ivanov, P. (2009). "The first record of a dinosaur from Bulgaria". Lethaia. 43 (1): 88–94. doi:10.1111/j.1502-3931.2009.00174.x. Archived from the original on 18 December 2021. Retrieved 2 November 2017.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  15. Nudds, Robert L.; Dyke, Gareth J. (14 May 2010). "Narrow Primary Feather Rachises in Confuciusornis and Archaeopteryx Suggest Poor Flight Ability". Science. 328 (5980): 887–889. Bibcode:2010Sci...328..887N. doi:10.1126/science.1188895. PMID   20466930. S2CID   12340187.
  16. Dyke, Gareth (2010). "Winged Victory". Scientific American. 303 (1): 70–75. Bibcode:2010SciAm.303a..70D. doi:10.1038/scientificamerican0710-70. PMID   20583670. Archived from the original on 3 December 2013. Retrieved 22 November 2013.
  17. Dyke, Gareth (2011). "The Dinosaur Baron of Transylvania". Scientific American. 305 (4): 80–83. Bibcode:2011SciAm.305c..80D. doi:10.1038/scientificamerican1011-80. PMID   22106812.
  18. Kurochkin, E. N.; Dyke, G. J. (2011). "The first fossil owls (Aves: Strigiformes) from the Paleogene of Asia and a review of the fossil record of Strigiformes". Paleontological Journal. 45 (4): 445–458. doi:10.1134/s003103011104006x. S2CID   84397725.
  19. "Jurassic Dino-Bird Discovered, Named Eosinopteryx - Paleontology - Sci-News.com". Archived from the original on 3 December 2013. Retrieved 22 November 2013.
  20. Godefroit, Pascal; Cau, Andrea; Dong-Yu, Hu; Escuillié, François; Wenhao, Wu; Dyke, Gareth (20 June 2013). "A Jurassic avialan dinosaur from China resolves the early phylogenetic history of birds". Nature. 498 (7454): 359–362. Bibcode:2013Natur.498..359G. doi:10.1038/nature12168. PMID   23719374. S2CID   4364892.
  21. "New kind of extinct flying reptile discovered". Archived from the original on 6 March 2016. Retrieved 9 March 2018.
  22. Fernández, M. S.; García, R. A.; Fiorelli, L; Scolaro, A; Salvador, R. B.; Cotaro, C. N.; Kaiser, G. W.; Dyke, G. J. (2013). "A Large Accumulation of Avian Eggs from the Late Cretaceous of Patagonia (Argentina) Reveals a Novel Nesting Strategy in Mesozoic Birds". PLOS ONE. 8 (4): e61030. Bibcode:2013PLoSO...861030F. doi: 10.1371/journal.pone.0061030 . PMC   3629076 . PMID   23613776.
  23. Vremir, M; Kellner, A. W.; Naish, D; Dyke, G. J. (2013). "A New Azhdarchid Pterosaur from the Late Cretaceous of the Transylvanian Basin, Romania: Implications for Azhdarchid Diversity and Distribution". PLOS ONE. 8 (1): e54268. Bibcode:2013PLoSO...854268V. doi: 10.1371/journal.pone.0054268 . PMC   3559652 . PMID   23382886.
  24. Chan, Nicholas R.; Dyke, Gareth J.; Benton, Michael J. (2013). "Primary feather lengths may not be important for inferring the flight styles of Mesozoic birds". Lethaia. 46 (2): 146–153. doi:10.1111/j.1502-3931.2012.00325.x.