Well, I succeeded in posting more last year than I did in 2021, at least. However, most of the posts I made were not research-heavy informational articles about maniraptors, as I've intended this blog to focus on. Instead, I was motivated to write by the release of Prehistoric Planet, the return of in-person conferences, and a sudden urge to talk about a childhood icon.
If my relative silence on here reflects anything, it's probably that 2022 was a big year for me. Most conspicuously, I graduated with my PhD from the University of Bath and started a postdoctoral position at the University of Cambridge. In addition, a paper I co-authored was published: spearheaded by my labmate Juan Benito Moreno, we described the postcranial anatomy of Ichthyornis based on 40 new specimens. I also finished drawing an infographic on bird phylogeny, on which I'd been working intermittently for about two years (and planning for even longer than that), and was fortunate enough to be invited for an interview about my research and outreach by science communicator Jon Perry. Miraculously, I was able to continue updating New Dinosaur Alert and Through Time and Clades fairly consistently. Between research, peer reviewing, networking, and a well of other personal projects either in progress or on the horizon, I'm fully expecting activity on this blog to remain low in the foreseeable future. There are still elements of blogging I enjoy, however, so I certainly don't intend to stop posting entirely.
My infographic on bird phylogeny, which can be viewed in detail here. |
I will be making a few changes to this year's review of new maniraptoran research. First of all, I will not be writing a separate post going over new species in detail, as I think the time and effort spent on that would be largely redundant with respect to my work on New Dinosaur Alert. Secondly, though listing studies by publication month has been convenient for me in previous years, I suspect that that format is not particularly useful to most readers. Instead, I will try out a rough phylogenetic organization of the stories here. As always, my coverage of papers about modern birds is necessarily going to be incomplete, so I put more focus on those that have more direct connections to paleontology, such as studies on anatomy, ontogeny, and higher-order phylogeny.
General and non-paravian maniraptors
- Environmental factors affecting feather taphonomy
- New alvarezsaurs Dzharaonyx eski and Ondogurvel alifanovi
- Redescription of Parvicursor
- New therizinosaur Paralitherizinosaurus japonicus
- Cranial biomechanics of oviraptorosaurs
- Reproductive biology of oviraptorosaurs
- Flapping mechanics of Caudipteryx
- Caenagnathids from the Cerro del Pueblo Formation
- Subadult specimen of Yulong
- Tracks from the Late Cretaceous of Italy identified as likely belonging to oviraptorosaurs
Estimated gape limits in oviraptorosaurs, from Meade and Ma (2022). |
- Comment and response on the role of wing-assisted incline running (WAIR) in the origin of avian flight
- Skull morphometrics of Mesozoic paravians
- Body profiles of Mesozoic paravians based on soft tissues
- Soft tissues of the feet in Mesozoic paravians
- New dromaeosaurids Natovenator polydontus and Daurlong wangi
- Microraptor ate mammals
- Maxillary evolution in eudromaeosaurs
- Giant dromaeosaurid from the Bissekty Formation
- Osteology of Dineobellator
Holotype of Daurlong wangi, from Wang et al. (2022). |
- Troodontid hand from the Yixian Formation
- Birds of the Mesozoic by Juan Benito Moreno and illustrated by Roc Olivé Pous published (I may have had a hand in this one)
- Evidence of frugivory in and cranial osteology of Jeholornis
- Pectoral girdle morphology of Sapeornis and Piscivorenantiornis
- New confuciusornithiform Confuciusornis shifan
- Taphonomy of a claw sheath in Confuciusornis
- Ontogenetic niche shifts in Confuciusornis
- New enantiornitheans Beiguornis khinganensis, Musivavis amabilis, and Yatenavis ieujensis
- Cranial anatomy of Yuanchuavis
- Diet of longipterygids
- Enantiornithean braincase from the Adamantina Formation
- Scales of Gansus
- New ichthyornithean Janavis finalidens
- Postcranial anatomy of Ichthyornis
- Connectivity patterns of the hindlimb musculoskeletal system in diving avialans
- Review of hesperornithiform diversity
Schematic skeletal of Janavis finalidens with preserved bones shown, from Benito et al. (2022). |
- Second edition of Paleogene Fossil Birds by Gerald Mayr published
- Catalogue of fossil birds of Cuba
- Survey of the avian uncinate bone
- Variation in avian sternal keel shape
- Functional morphology of the avian pelvis
- Ossification of the avian vertebral column
- Identification of skeletal maturity in birds
- Bone histology of large flightless birds
- Scaling of avian ear morphology
- Survey of avian paramedullary diverticula
- Development of the avian pelvis parallels its evolutionary history
- Diversification of avian limb morphology
- Environmental signal in the diversification of avian skeletons
Developmental history of the avian pelvis compared to its evolutionary history, from Griffin et al. (2022). |
- Special issue on avian functional traits
- Interrelationships among body mass, jaw musculature, and bite force in birds
- Avian coracoid strength as an indicator of wing-beat propulsion
- Possible link between avian brain size and flight mode
- Flying birds transition between stable and unstable states via wing morphing
- Role of wingbeat frequency and amplitude in avian flight power
- Role of tail in stability and energetic cost of avian flapping flight
- Soaring performance of giant birds (and pterosaurs)
- Correlation between high wing loading and avian dive performance
- Diversity of avian eggshell thickness indices
- Review of feather function in birds
- Evolution of avian facial bristles
- Review of thermal effects of plumage coloration
- Contrastingly-colored ventral wings as visual collision avoidance signals in birds
- Ornaments are equally informative in male and female birds
Associations between ornament elaboration and body condition or fitness in mutually ornamented bird species, from Nolazco et al. (2022). |
- Correlation between avian neuron numbers and innovativeness
- Problems with using comparative analyses of avian brain size to test hypotheses of cognitive evolution
- Adaptive variation in the upper limits of avian body temperature
- Genomic basis for avian tactile foraging
- Review of genomic bases for adaptation in birds
- Evolution of the broken-wing display in birds
- Aggressive signaling among competing bird species
- Complexity of avian brood parasite–host relationships
- Effect of flight efficiency on gap-crossing ability in birds from the Amazon
- Riverine barriers as obstacles to dispersal in birds from the Amazon
- Interspecific competition limits avian species ranges in tropical mountains
- Seasonal avian species richness on islands
- Biome conservatism in galliforms and falcons
- Macroevolutionary dynamics of avian climatic niche space
- Changes in avian range size from Pleistocene climatic oscillations
- Post-settlement extinction rates for New Zealand birds
- Phylogenetic nomenclature of avian clades, including new names for the moa–tinamou clade (Dinocrypturi), the mesite–sandgrouse clade (Pteroclimesites), the putative turaco–bustard clade (Musophagotides), the phaethontimorph–aequornithean clade (Phaethoquornithes), and the suliform–pelecaniform clade (Pelecanes)
- Bird from the Na Duong Formation
- Conflicting signals in neoavian phylogenetics
- Phylogeny of neoavians based on retroelements
- Rate of mutation accumulation in neoavians
- Evolution of diving in neoavians
- Review of convergence across nectarivorous birds
- Coevolution between channel-billed cuckoos and pied currawongs
Distribution of diving behavior in aquatic neoavians, from Tyler and Younger (2022). |
- Review of the paleognath fossil record
- Review of putative paleognath fossils from South America and Antarctica
- Bone histology of paleognaths
- Stratigraphic distribution of the egg taxon Psammornis
- Reevaluation of Struthio asiaticus
- Preserved peptides in ostrich eggshell from the Liushu Formation
- Trade-offs between heat and cold tolerance in common ostriches
- Divergent benefits of cooperative breeding for male and female common ostriches
- Diogenornis-like fossils from Argentina reinterpreted as remains of an indeterminate paleognath and a stem-penguin
- Wing anatomy of the greater rhea
- Intraspecific variation in the casque of southern cassowaries
- Phylogeny of kiwi
- Population genetic structure of North Island brown kiwi
- Genetic evidence for a post-glacial population expansion in eastern moa
- "Tinamou egg" from the Dolores Formation reinterpreted as a mammal intestinal stone
Variation in the casque of southern cassowaries, from Green et al. (2022). |
- Evidence from ancient protein sequences presented in favor of a dromornithid (instead of megapode) identity for putative Genyornis eggshells
- Bone histology of Dromornis
- Ecomorphology of the anseriform tarsometatarsus
- New Miocene anatid Allgoviachen tortonica
- New Miocene anatid Notochen bannockburnensis
- New Miocene filter-feeding, flightless swans Annakacygna hajimei and Annakacygna yoshiiensis (memorably deemed the "ultimate bird[s]" to ever exist by their describers)
- Development of denticulations in domestic geese
- New Miocene shelduck Miotadorna catrionae (argued to be synonymous with Miotadorna sanctibathansi by a later study)
- Use of wings by common mergansers while diving
- New Pleistocene duck Spatula praeclypeata
Skeletal reconstruction of Annakacygna hajimei, from Matsuoka and Hasegawa (2022). |
- Endocast of Sylviornis
- Evolution of courtship displays in galliforms
- Ecosystem engineering by mound-building malleefowl
- Thermoregulatory function of the throat sack in helmeted guineafowl
- Phylogeny of American quails
- Generation of a three-dimensional illusion and a novel form of blue structural color in feathers of great argus
- New Pliocene phasianid "Pliogallus" csarnotanus ("Pliogallus" is almost certainly synonymous with the extant Gallus)
- The origin of domestic chickens (a comment and response to this study was published later in the year)
- Development of ribs and intercostal muscles in chickens
- Kinematics of walking up and down steps in common quails
- New Miocene phasianid Centuriavis lioae
Holotype of Centuriavis lioae, from Ksepka et al. (2022). |
- Flamingo from the Kramer Beds
- Phylogeny of flamingos
- Limited domestic introgression in rock pigeons of the Outer Hebrides
- Neurons of rock pigeons consume less glucose than those of mammals
- Taxonomy of the brush cuckoo species complex
Strisoreans
- Taxonomy of eared nightjars
- Craniomandibular simplicity in the band-winged nightjar
- New Miocene owlet-nightjar Aegotheles zealandivetus
- Moonlight drives nocturnal vertical flight dynamics in black swifts
- Torpor in common swifts
- Model of the musculoskeletal system of hummingbird wings
- Evolution of sexually dimorphic traits in hummingbirds
- Plumage color diversity of hummingbirds
- Heterothermic spectrum in hummingbirds
- Review of vocal communication in hummingbirds
- Intersexual social dominance mimicry drives female polymorphism in white-necked jacobins
- Sexual selection for flight performance in mellisugin hummingbirds
Plumage color diversity in hummingbirds, from Venable et al. (2022). |
- Relationship between flightlessness and brain morphology in rails
- Phylogenetic position of the Zapata rail
- Divergence times of shorebirds
- Buttonquails from the Oligocene–Miocene of France
- Phylogeny of skuas
- Flightless molt strategies of Atlantic puffins
- Dark wing pigmentation improves flight efficiency in gulls
Time-scaled phylogeny of shorebirds, from Černý and Natale (2022). |
- New stem-loon Nasidytes ypresianus
- Review of the evolutionary and biogeographical history of penguins
- Comparative anatomy of the synsacral canal in penguins
- Illustration of penguin head anatomy
- Genomic insights into penguin evolution
- Breeding biology of erect-crested penguins
- Comparative anatomy of the compound rhamphotheca in procellariiforms
- Historical genetic structure of short-tailed albatrosses
- Deep diving in black-browed albatrosses
- Phylogeny of the fairy prion and the fulmar prion
- Response of streaked shearwaters to cyclones
- Species delimitation in Puffinus shearwaters
- New specimens of Leptoptilos robustus
- Phylogeography of frigatebirds
- Diversification of blue-eyed shags
- Comparative morphology of the remote-touch bill-tip organ in ibises
Holotype of Nasidytes ypresianus, from Mayr and Kitchener (2022). |
- New Miocene telluravian-like bird Zealandornis relictus
- Formation of Indo-Pacific bird diversity across barriers and along elevational gradients
- River network rearrangements promote speciation in lowland Amazonian birds
- Myological variation in raptors
- Postcranial skeletal pneumaticity in accipitrimorphs
- Humeral morphometrics in vultures
- Large condor from the Luján Formation
- New Miocene cathartid vulture Dryornis hatcheri
- Coloration mechanisms of bare skin on the heads of American vultures
- Paleogenomics of Coragyps occidentalis
- Orbit and endocranial morphology of the letter-winged kite
- New Miocene gypaetine vultures Gypaetus georgii and Neophron lolis
- New genus Cryptogyps for "Taphaetus" lacertosus, identified as an aegypiine vulture
- Optimization of perching maneuvers by Harris's hawks
- Buteo hawk from the Miocene of Italy
- Avoidance of the confusion effect by Swainson's hawks while hunting Mexican free-tailed bats
Skull and endocast of the letter-winged kite, from Keirnan et al. (2022). |
- New stem-owl Ypresiglaux michaeldanielsi
- Giant barn owl from the Holocene of Guadeloupe
- Role of the tail in drag minimization in gliding barn owls
- Genomic basis of insularity and ecological divergence in barn owls of the Canary Islands
- Phylogenetic position of the forest owlet
- New Miocene owl Miosurnia diurna
- New extant owl, the Príncipe scops-owl (Otus bikegila)
- Reevaluation of a putative Holocene record of the Eurasian eagle owl from Britain
- Great gray owls hover to defeat an acoustic mirage while hunting
Holotype of Miosurnia diurna, from Li et al. (2022). |
- New indeterminate telluravian Lutavis platypelvis and possible stem-courols Plesiocathartes insolitipes, Waltonavis paraleptosomus, and Waltonavis danielsi
- Social diffusion of foraging techniques in southern ground hornbills
- Woodpeckers minimize cranial shock absorption
- Evolution of drumming in woodpeckers
- Correlated evolution between color conspicuousness and drum speed in woodpeckers
- Evolution of sweet taste perception in woodpeckers
- Role of cranial kinesis in retracting stuck beaks of black woodpeckers during pecking
- Brain regions of downy woodpeckers linked to drumming displays
- New stem-falcon Danielsraptor phorusrhacoides
Skull of the holotype of Danielsraptor phorusrhacoides, from Mayr and Kitchener (2021). (The print version of the journal retroactively dates the paper to 2021, but really, the paper was first released in 2022.) |
- Biogeography of psittacopassereans
- Phylogeny of parrots
- Coevolution of brain size and life expectancy in parrots
- Past trophic ecology of kea
- Origin of tool use in Tanimbar corellas
- Composite tool use by Tanimbar corellas
- Potential case of an innovation arms race between sulfur-crested cockatoos and humans
- Climbing mechanics of green-cheeked conures
- Tripedal locomotion in rosy-faced lovebirds
Experimental setup for studying composite tool use in Tanimbar corellas, from Osuna-Mascaró et al. (2022). |
- New stem-passeriforms Minutornis primoscenoides, Psittacomimus eos, ?Psittacopes occidentalis, and Primoscens carolinae
- Comparative anatomy of the carpometacarpus in passeriforms
- Evolution of carotenoid-based plumage coloration in passeriforms
- Patterns of ultraviolet reflectance evolution in passeriforms
- Latitudinal gradients in passeriform colorfulness
- Correlates of aerial displays in passeriforms
- Drivers of variation in cup nest size in passeriforms
- Macroevolutionary consequences of nest type in passeriforms
- Faster evolution of song discrimination not associated with faster speciation rates in passeriforms
- Evolution of mimicry in juvenile tyrannidans
- Dancing drives sexual size dimorphism in manakins
- Evolution of gene expression underlying superfast muscles of manakins
- Conflicting signals in manakin phylogenetics
- Phylogeny of Lepidothrix manakins
- Speciation in Pipra manakins
- The black-and-white becard actually consists of two distantly related species
- Evolution of exaggerated sexual traits in kingbirds
- Population dynamics of antbirds
- Diversification of Willisornis antbirds
- Diversification of bare-eyes
- Adaptations to climbing in the feet of ovenbirds
- Correlates of molecular evolutionary rates in ovenbirds
- New extant ovenbird, the subantarctic rayadito (Aphrastura subantarctica)
Distribution of mimetic traits in juvenile tyrannidans, from Londoño et al. (2022). |
- Nest architecture linked with ecological success in songbirds
- Feather growth rate in songbirds explained by breeding latitude
- Post-copulatory multimodal display performed by male superb lyrebirds
- Emergence of multilevel societies in superb fairy-wrens
- Evolutionary history of female ornamentation in white-shouldered fairy-wrens
- Relationship between geographic range size and speciation in honeyeaters
- New genus Eugymnomyza for the crow honeyeater ("Gymnomyza" aubryana)
- Diversification of corvideans
- The phylogeny of the maroon oriole species complex
- Australian magpies cooperatively remove tracking devices from each other
- Phylogeography of Paradisaea birds-of-paradise
- Diversification of corvids
- High associative neuron numbers in corvids
- Speciation in scrub-jays
- Delay of gratification in Eurasian jays
- Diversification of nutcrackers
- How consensus in Eurasian jackdaws governs mass departures from their roosts
- Brain atlas of the carrion crow
- Recursive sequence generation in carrion crows
- Review of tool use in common ravens
Phylogeny of corvideans, from McCullough et al. (2022). |
- Phylogeny and phylogeography of New Zealand wattlebirds
- Migratory route of the Arctic warbler
- New extant white eyes, the Meratus white-eye (Zosterops meratusensis) and the Wangi-wangi white-eye (Zosterops paruhbesar)
- Effectiveness of camouflage in Eurasian treecreepers
- New recently extinct thrush Geokichla longitarsus
- Pressure for rapid mate recognition promotes plumage sexual dichromatism in Turdus thrushes
- Phylogeny of Afro-Eurasian flycatchers
- Extinction risk of shamas
- New extant Afro-Eurasian flycatcher, the Meratus jungle flycatcher (Cyornis kadayangensis)
- Polymorphism and hybridization in Cyornis flycatchers
- Taxonomy of Erithacus robins
- Taxonomy of bush robins
- Convergence in open-habitat chats
- Phylogeography of the black sunbird and the olive-backed sunbird
- Convergent evolution of pendent nests in weaverbirds and American blackbirds
- Effect of genetic architecture on adaptation for host mimicry by cuckoo-finches
- Social role of song in zebra finches
- Mitogenomics of wagtails
- Hand-wing index as a proxy for dispersal ability in emberizoids
- Biogeography of Arremon passerellid sparrows
- Niche construction by brown-headed cowbirds through altering host brood size
- Hybrid between a rose-breasted grosbeak and a scarlet tanager
- Feather coloration mechanisms of male painted buntings
- Morphological convergence in tanagers
- Evolution of plumage coloration in tanagers
- Phylogeny of Thraupis tanagers
- Comparative genomics of Darwin's finches
- Diversification of the variable seedeater species complex
Hybrid between rose-breasted grosbeak and scarlet tanager, from Toews et al. (2022). |
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