Undescribed Dinosaurs and Other Prehistoric Life: The Revival - Published List

[Logo7]

This thread serves as a companion to my other thread "Undescribed Dinosaurs and Other Prehistoric Life: The Revival," which lists several currently unpublished descriptions and studies from all groups of prehistoric life, and, by extension, to the original thread "Undescribed Dinosaurs and Other Beasts" by ZoPteryx. This thread catalogues every description or study from that thread that has since gone on to be published. This thread will continue to be updated as topics are removed from the original and added to here.

Theropods
-  A new species of Allosaurus (A. jimmadseni) from Dinosaur National Monument - Described as A. jimmadseni in 2020 (Paper: https://peerj.com/articles/7803/)
- "Zunityrannus", formerly the New Mexican "basal coelurosaur" - From the original list. Described as Suskityrannus hazelae in 2019 (Paper: https://www.pure.ed.ac.uk/ws/files/82474043/82473554._Brusatte._AAM.pdf)
- Two new Early Cretaceous alvarezsaurs fill in gaps in the group's evolutionary history, Haplocheirus is confirmed as a basal member, possibly along with Aorun and Tugulusaurus - From the original list. Described as Xiyunykus pengi and Bannykus wulatensis, with the addition of the new status of Haplocheirus, Aorun, and Tugulusaurus as basal alvarezsaurs, in 2018 (Paper: https://www.cell.com/current-biology/fulltext/S0960-9822(18)30987-4?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982218309874%3Fshowall%3Dtrue)
- Horseshoe Canyon very complete caenagnathid specimen - From the original list. Described as Apatoraptor pennatus in 2016 (Paper: https://figshare.com/articles/dataset/A_new_caenagnathid_Dinosauria_Oviraptorosauria_from_the_Horseshoe_Canyon_Formation_of_Alberta_Canada_and_a_reevaluation_of_the_relationships_of_Caenagnathidae/3172573)
- A possible new species of oviraptorosaur with two fingers - Described as Oksoko avarsan in 2020 (Paper: https://royalsocietypublishing.org/doi/10.1098/rsos.201184)
- The large antarctic dromaeosaur is found to be very primitive - From the original list. Described as Imperobator antarcticus in 2019 (Paper: https://www.sciencedirect.com/science/article/pii/S0195667118300120?via%3Dihub)
- WDC DML 001 ("Lori"), an unpublished species of troodontid from the Late Jurassic of Wyoming. One of the oldest known troodontids. - Described as Hesperornithoides miessleri in 2019 (Paper: https://peerj.com/articles/7247/)
- Reexamination of the Archaeopteryx holotype feather rediscovers the calamus as a chemical signature after accidentally having been prepared away.  Feather size and morphology is not consistent with Archaeopteryx so it likely belongs to a different unidentified pennaraptoran - From the original list. Published in 2019. Later contradicted in a study from 2020 (Paper: https://www.nature.com/articles/s41598-018-37343-7)
- A nearly complete basal bird from early Cretaceous Japan with an odd mix of features - Described as Fukuipteryx prima in 2019 (Paper: https://www.nature.com/articles/s42003-019-0639-4)
- Possible new basal allosauroid from Jurassic Portugal, known from a partial skeleton - Described as Lusovenator santosi in 2020 (Paper: https://www.tandfonline.com/doi/abs/10.1080/02724634.2020.1768106?journalCode=ujvp20)
- A new extremely well preserved specimen of Saurornitholestes - Published in 2020 (Paper: https://anatomypubs.onlinelibrary.wiley.com/doi/full/10.1002/ar.24241)
- "Ichabodcraniosaurus" theropod from the Cretaceous of the Gobi Desert in China - Described as Shri devi in 2021 (Paper: https://digitallibrary.amnh.org/bitstream/handle/2246/7251/N3965.pdf?sequence=1&isAllowed=y)
- "Airakoraptor" dromeosaurid (specimen IGM 100/981) from the Late Cretaceous of Mongolia - Described as Kuru kulla in 2021 (Paper: https://digitallibrary.amnh.org/bitstream/handle/2246/7286/3982.pdf?sequence=1&isAllowed=y)
- Possible ceratosaurid "Liassaurus" from the Early Jurassic of Europe - Described as a new specimen of Sarcosaurus woodi in 2021 (Paper: https://research.birmingham.ac.uk/en/publications/a-revision-of-the-early-neotheropod-genus-isarcosaurusi-from-the-)
- A new Argentinian coelophysoid - From the original list. Described as Powellvenator podocitus in 2017 (Paper: https://bioone.org/journals/ameghiniana/volume-54/issue-5/AMGH.04.08.2017.3100/A-New-Early-Coelophysoid-Neotheropod-from-the-Late-Triassic-of/10.5710/AMGH.04.08.2017.3100.short)
- A study finding unenlagines to fall outside proper dromaeosaurids - Published in 2020 in the description of Overoraptor chimentoi (Paper: https://link.springer.com/article/10.1007/s00114-020-01682-1)
- A new alvarezsaurid from the Hell Creek Formation in Montana - Described as Trierarchuncus prairiensis in 2020 (Paper: https://www.sciencedirect.com/science/article/abs/pii/S0195667120302469?via%3Dihub)
- A new tyrannosaurid with paleoart being worked on by Sergey Krasovskiy - Described as Tyrannosaurus mcraensis in 2024 (Paper: https://www.nature.com/articles/s41598-023-47011-0)
- "Merosaurus" theropod from the Early Jurassic of England - Described as Dornraptor normani in 2024 (Paper: https://palaeo-electronica.org/content/2024/5067-on-an-early-jurassic-theropod)

Sauropodomorphs
- A new macronarian sauropod from Portugal - Described as Oceanotitan dantasi in 2019. (Paper: https://www.tandfonline.com/doi/abs/10.1080/02724634.2019.1578782?journalCode=ujvp20)
- A new possible prosauropod or early sauropod "Thotobolosaurus" or "Kholumolumosaurus" from the Late Triassic of Lesotho - Described as Kholumolumo ellenbergerorum in 2020 (Paper: https://www.tandfonline.com/doi/full/10.1080/02724634.2019.1732996)
- A dicreaosaurid skull from the Lower Cretaceous of Argentina is a first for the group, unusually gracile design - From the original list. Described as Bajadasaurus pronuspinax in 2019 (Paper:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6362061/)
- A nearly complete basal eusauropod from Cedar Mountain formation, Utah - From the original list. Described as Mierasaurus bobyoungi in 2017 (Paper: https://www.nature.com/articles/s41598-017-14677-2)
- A giant mostly complete Patagonian titanosaur weighing over 50 tons - From the original list. Described as Patagotitan mayoroum in 2017 (Paper: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5563814/)
- A new large and advanced Late Triassic sauropodomorph from Argentina - From the original list. Described as Ingentia prima in 2018 (Paper: https://www.nature.com/articles/s41559-018-0599-y)

Ornithischians
- Two new ceratopsians ("Navajoceratops" and "Terminocavus") from the Cretaceous Kirtland Formation of New Mexico - Described as Navajoceratops sullivani and Terminocavus sealeyi in 2020 (Paper: https://peerj.com/articles/9251/)
- "Mukawaryu" hadrosaur from the Late Cretaceous of Japan - Described as Kamuysaurus japonicus in 2019 (Paper: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6728324/)
- Between 3 and 6 unrecognized ankylosaur species from Late Cretaceous North America, including a large taxon - Described as Zuul crurivastator in 2017 and as Platypelta coombsi, Scolosaurus thronus, and Anodontosaurus inceptus in 2018 (Papers: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5451805/, https://www.schweizerbart.de/papers/njgpa/detail/287/88697/Revised_systematics_of_the_armoured_dinosaur_Euopl?af=crossref)

Pterosaurs
- A new assemblage of pteranodontids and nyctosaurids from the latest Cretaceous of Morocco, nyctosaurids suggested to be large and diverse - From the original list. Described as Alcione elainus, Barbaridactylus grandis, Simurghia robusta, and Tethydraco regalis in 2018 (Paper: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5849296/)
- Large non-pterodactyloid from Late Triassic of Utah - From the original list. Described as Caelestiventus hanseni in 2018 (Paper: https://www.nature.com/articles/s41559-018-0627-y)
- New azhdarchoid from the Brazilian Caiuajara nesting grounds - Described as Keresdrakon vilsoni in 2019 (Paper: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000400517&tlng=en)
- A new azdarchid from the Late Cretaceous Hateg Island group of Romania - Described as Albadraco tharmisensis in 2019 (Paper: https://www.sciencedirect.com/science/article/pii/S0195667119301016)
- A possible new species of azhdarchoid pterosaur from the Late Cretaceous Javelina Formation of Texas - Described as Wellnhopterus brevirostris in 2021. (Paper: https://www.tandfonline.com/doi/full/10.1080/02724634.2021.1907587)
- The gate pattern of Quetzalcoatlus was more like that of a bipedal animal - Published in 2021 (Paper: https://www.tandfonline.com/doi/full/10.1080/02724634.2020.1780247)

Marine Reptiles
- Protoichthyosaurus argued to be a valid genus - From the original list. Published in 2017 (Paper: https://www.research.manchester.ac.uk/portal/en/publications/the-taxonomic-utility-of-forefin-morphology-in-lower-jurassic-ichthyosaurs-protoichthyosaurus-and-ichthyosaurus(ff48fdc1-8ea2-4b7e-9d28-e6f55825130b).html)
- The mosasaur genus Clidastes is likely paraphyletic - Published in 2019 (Paper: https://www.tandfonline.com/doi/full/10.1080/03115518.2018.1549685)
- Small Alaskan thalattosaur with an upturned rostrum and needle-like teeth restricted to the end - Described as Gunakadeit joseeae in 2020 (Paper: https://www.nature.com/articles/s41598-020-57939-2)
- New nearly complete cryptoclidid, including a skull, from the Jurassic-Cretaceous boundary of Norway - Described as Opthalmothule cryostea in 2020 (Paper: https://peerj.com/articles/8652/)
- A new "mummified" dolichosaur from Italy - Described as Primitivus manduriensis in 2018 (Paper: https://royalsocietypublishing.org/doi/10.1098/rsos.172411)
- A new highly derived mosasaur from Morocco that converges with toothed whales in morphology, remains formerly placed in Platecarpus - Described as Gavialimimus almaghribensis in 2020 (Paper: https://www.tandfonline.com/doi/abs/10.1080/14772019.2020.1818322?journalCode=tjsp20)
- A Triassic plesiosaur from Germany - From the original list. Described as Rhaeticosaurus mertensi in 2017 (Paper: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5729018/)


Other Diapsid Reptiles
- A short-snouted archosauriforme (possible crocodyliforme) from the late Triassic of Arizona - Described as Syntomiprosopus sucherorum in 2021 (Paper: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8253714/
- Possible rauisuchian "Pallisteria" from the Middle Triassic of Tanzania - Described as Mambawakale ruhuhu in 2022 (Paper: https://royalsocietypublishing.org/doi/10.1098/rsos.211622)
- A peculiar new crocodyliform from the Campanian of Egypt suggests the fauna of the region was unique - Described as Wahasuchus egyptensis in 2018 (Paper: https://www.sciencedirect.com/science/article/abs/pii/S0195667117301453?via%3Dihub)
- A reassessment of Tetrapodophis vertebrae finds it lacks features seen in snakes, likely snake-like only - Published in 2021 (Paper: https://www.tandfonline.com/doi/full/10.1080/14772019.2021.1983044)

Mammals
- Skull of a haramiydian mammaliform from the Early Cretaceous of Utah extends timespan of the group and suggests similar unidentified teeth found in Europe and Morocco may also belong to this group - Described as Cifelliodon wahkarmoosuch in 2018 (Paper: https://www.nature.com/articles/s41586-018-0126-y)
- A Malagasy gondwanatherian with complete post-cranial remains - Described as Adalatherium hui in 2020 (Paper: https://www.nature.com/articles/s41586-020-2234-8)

Non-Mammalian Synapsids
- Ox-sized dicynodont from Poland - From the original list. Described as Lisowicia bojani in 2019 (Paper: https://science.sciencemag.org/content/363/6422/78)

Amphibians
-

Fish
-

Invertebrates
-

Other Studies
-

[HD-man]

Has this specimen been described/published?: http://news.bbc.co.uk/2/hi/science/nature/545089.stm

[VD231991]

Has this specimen been described/published?: http://news.bbc.co.uk/2/hi/science/nature/545089.stm

That article is from 1999. There is, however, one juvenile T. rex specimen (KUVP 156375) from Montana mentioned in an abstract presented by Burnham et al. (2018) at the SVP 2018 conference, and unpublished results mentioned in that abstract describe it as having the same maxillary count as adult T. rex (12 maxillary teeth), unlike the count of 15-16 maxillary teeth in the Nanotyrannus holotype and "Jane". Because of the difference between KUVP 156375 and Jane in the maxillary tooth count despite both specimens being juvenile, KUVP 156375 will help clinch the conclusion by Carr (1999) that Nanotyrannus is a juvenile T. rex because it is the first juvenile T. rex specimen to demonstrate a decrease in the number of maxillary teeth as T. rex individuals matured.

Burnham, Atkins-Weltman, and Jevnikar, 2018. A new juvenile Tyrannosaurus rex from the Hell Creek Formation of eastern Montana provides insights into cranial and dental ontogeny. SVP 78th annual meeting, Albuquerque, New Mexico, p. 99. http://vertpaleo.org/Annual-Meeting/Annual-Meeting-Home/SVP-2018-program-book-V4-FINAL-with-covers-9-24-18.aspx

[VD231991]

Pterosaurs
- Large non-pterodactyloid from Late Triassic of Utah - From the original list. Described as Caelestiventus hanseni in 2018 (Paper: https://www.nature.com/articles/s41559-018-0627-y)
- New azhdarchoid from the Brazilian Caiuajara nesting grounds - Described as Keresdrakon vilsoni in 2019 (Paper: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000400517&tlng=en)
- A new azdarchid from the Late Cretaceous Hateg Island group of Romania - Described as Albadraco tharmisensis in 2019 (Paper: https://www.sciencedirect.com/science/article/pii/S0195667119301016)
- A possible new species of azhdarchoid pterosaur from the Late Cretaceous Javelina Formation of Texas - Controversially described as both Javelinadactylus sagebieli and Wellnhopterus brevirostris in 2021. Valid name for the specimen still needs to be determined as of July 2022. (Papers: https://link.springer.com/article/10.1007/s11756-021-00841-7, https://www.tandfonline.com/doi/full/10.1080/02724634.2021.1907587?scroll=top&needAccess=true)

Marine Reptiles
- The mosasaur genus Clidastes is likely paraphyletic - Published in 2019 (Paper: https://www.tandfonline.com/doi/full/10.1080/03115518.2018.1549685)
- Small Alaskan thalattosaur with an upturned rostrum and needle-like teeth restricted to the end - Described as Gunakadeit joseeae in 2020 (Paper: https://www.nature.com/articles/s41598-020-57939-2)
- New nearly complete cryptoclidid, including a skull, from the Jurassic-Cretaceous boundary of Norway - Described as Opthalmothule cryostea in 2020 (Paper: https://peerj.com/articles/8652/)

The paper whereby the name Javelinadactylus sagebieli was coined for the holotype of Wellnhopterus brevirostris (TMM 42489-2) has been withdrawn from publication in the journal Biologia by the journal's editors due to the fact that author of the submitted paper did not have ownership of the reported data. Therefore, Wellnhopterus brevirostris becomes the valid name for TMM 42489-2, but I'm glad that the editor of the Biologia journal had the article retracted because Campos did not mention that TMM 42489-2 also includes cervical vertebrae. The link featuring a notice about the paper erecting Javelinadactylus for TMM 42489-2 being retracted can found here:
https://link.springer.com/article/10.1007/s11756-021-00841-7

As a side note, Lively (2019) notes that the mosasaurid specimen ALMNH 5402 was given the nomen ex dissertationae "Clidastes liodontus moorevillensis" by Shannon (1975) and was later informally dubbed "Clidastes moorevillensis" by Bell (1993) in recognition of its distinctness from specimens referred to Clidastes liodontus, but that ALMNH 5402 itself may have to be given a new genus and species name because it does not share any unequivocal synapomorphies with Clidastes propython.

Bell Jr., G.L., 1993. A Phylogenetic Revision of Mosasauroidea (Squamata). Unpublished PhD dissertation, The University of Texas at Austin, 295 pp.

Shannon, S.W., 1975. Selected Alabama mosasaurs. University of Alabama, Tuscaloosa; unpublished Masters Thesis: 89 pp.