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Haliskia

Last updated July 11, 2025
Genus of anhanguerian pterosaurs

Haliskia
Temporal range: Early Cretaceous, middle–upper Albian
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Haliskia (KK F1426, holotype).png
Haliskia holotype (photograph)
Haliskia (KK F1426, holotype - drawing).png
Haliskia holotype (drawing)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Order:† Pterosauria
Suborder:† Pterodactyloidea
Clade:† Ornithocheirae
Clade:† Anhangueria (?)
Family:† Anhangueridae (?)
Genus:† Haliskia
Pentland et al., 2024
Species:
†H. peterseni
Binomial name
†Haliskia peterseni
Pentland et al., 2024

Haliskia (meaning "sea phantom") is an extinct genus of anhanguerian pteranodontoid pterosaurs from the Early Cretaceous Toolebuc Formation (Eromanga Basin) of Australia. The genus contains a single species, H. peterseni, known from a partial skeleton with skull. Haliskia represents the most complete pterosaur known from Australia.

Contents

  • Discovery and naming
  • Description
  • Classification
  • References

Discovery and naming

Geologic map of Queensland, Australia indicating Dig Site 3, the type locality of Haliskia Cretaceous outcrops in Queensland - Pterosaur fossil localities.png
Geologic map of Queensland, Australia indicating Dig Site 3, the type locality of Haliskia

The Haliskia holotype specimen, KK F1426, was discovered by Kevin Petersen in November 2021 within sediments of the Toolebuc Formation (Dig Site 3) near Richmond in Queensland, Australia. The specimen consists of a partial skeleton preserved on multiple slabs. With approximately 22% of the skeleton known, Haliskia represents the most complete pterosaur currently described from the continent. The bones represented include the anterior part of the skull (including a partial premaxilla crest), the mandible, several isolated teeth, a cervical and dorsal vertebra, ribs, the left scapulocoracoid, bones of the fore- and hindlimbs, and other fragments. [1] [2]

In 2024, Pentland et al. described Haliskia peterseni as a new genus and species of anhanguerian pterosaurs based on these fossil remains. The generic name, Haliskia, combines the Greek words ἅλς (háls), meaning "sea", and σκῐᾱ́ (skiā́), referring to a "phantom", "shadow", or "evil spirit". The name invokes a flying phantom-like creature whose shadow haunted the prehistoric Eromanga Sea. The specific name, peterseni, honours Kevin Petersen, the discoverer and preparator of the holotype. [1] [2]

Description

Life restoration by Gabriel N. Ugueto Haliskia Life Restoration.png
Life restoration by Gabriel N. Ugueto

The holotype specimen of Haliskia represents a skeletally mature individual, as indicated by the fusion of the finger bones and scapulocoracoid. Based on more complete and proportionally similar relatives such as Arthurdactylus , the wingspan of Haliskia can be estimated at 4.6 metres (15 ft). [1] In comparison, the closely related Ferrodraco has a slightly smaller wingspan of around 4 metres (13 ft), [3] and Mythunga likely had a wingspan between 4–6 metres (13–20 ft). [4]

Classification

To test the affinities of Haliskia, Pentland et al. (2024) scored it in two phylogenetic datasets. Both resulting trees differed significantly in topology, relationships, and clade composition. However, in both trees, Haliskia was recovered in a clade with Ferrodraco , which is known from the slightly younger Winton Formation (Cenomanian–early Turonian). Both datasets also agreed that Haliskia can confidently be regarded as a member of the Ornithocheirae. [1]

Using the dataset of Holgado and Pêgas (2020), [5] the two genera were recovered in a polytomy with Mythunga , which is known from the same formation as Haliskia. This clade is the sister taxon to one formed by Siroccopteryx and Tropeognathus within the Tropeognathinae, similar to the results of Richards et al. (2023) who referred to these clades as the Mythungini and Tropeognathini, respectively. [6] The results of this matrix also placed tropeognathines within the Anhangueridae. These results are displayed below in Topology A. [1]

Using the dataset of Andres (2021), [7] Haliskia and Ferrodraco were found in a clade as the sister to the Ornithocheirinae within the Ornithocheiridae. The results of this matrix placed ornithocheirids as the sister taxon to anhangueirds. These results are displayed below in Topology B. [1]

Topology A: Holgado and Pêgas (2020) dataset [5]
Ornithocheirae

basal ornithocheirean(s)

Anhangueridae

Targaryendraconia

Hamipterus

Iberodactylus

Anhanguerinae

Coloborhynchinae

Tropeognathinae

Ferrodraco

Haliskia

Mythunga

Siroccopteryx

Tropeognathus

Topology B: Andres (2021) dataset [7]
Ornithocheirae

Anhangueridae

Ornithocheiridae

Tropeognathus

Ferrodraco

Haliskia

Ornithocheirinae

Ornithocheirus spp.

Siroccopteryx

Coloborhynchus spp.

References

  1. 1 2 3 4 5 6 Pentland, A. H.; Poropat, S. F.; Duncan, R. J.; Kellner, A. W. A.; Bantim, R. A. M.; Bevitt, J. J.; Tait, A. M.; Grice, K. (2024). "Haliskia peterseni, a new anhanguerian pterosaur from the late Early Cretaceous of Australia". Scientific Reports . 14 (1). 11789. Bibcode:2024NatSR..1411789P. doi: 10.1038/s41598-024-60889-8 . PMC   11169243 . PMID   38866826.
  2. 1 2 Pentland, Adele (2024-06-12). "100-million-year-old fossil find reveals huge flying reptile that patrolled Australia's inland sea". The Conversation . Retrieved 2024-06-12.
  3. ↑ Pentland, Adele H.; Poropat, Stephen F.; Tischler, Travis R.; Sloan, Trish; Elliott, Robert A.; Elliott, Harry A.; Elliott, Judy A.; Elliott, David A. (December 2019). "Ferrodraco lentoni gen. et sp. nov., a new ornithocheirid pterosaur from the Winton Formation (Cenomanian–lower Turonian) of Queensland, Australia". Scientific Reports . 9 (1): 13454. Bibcode:2019NatSR...913454P. doi:10.1038/s41598-019-49789-4. ISSN   2045-2322. PMC   6776501 . PMID   31582757.
  4. ↑ Pentland, Adele H.; Poropat, Stephen F. (2019). "Reappraisal of Mythunga camara Molnar & Thulborn, 2007 (Pterosauria, Pterodactyloidea, Anhangueria) from the upper Albian Toolebuc Formation of Queensland, Australia" . Cretaceous Research . 93: 151–169. Bibcode:2019CrRes..93..151P. doi:10.1016/j.cretres.2018.09.011.
  5. 1 2 Borja Holgado; Rodrigo V. Pêgas (2020). "A taxonomic and phylogenetic review of the anhanguerid pterosaur group Coloborhynchinae and the new clade Tropeognathinae". Acta Palaeontologica Polonica . 65 (4): 743–761. doi: 10.4202/app.00751.2020 . S2CID   222075296.
  6. ↑ Richards, Timothy; Stumkat, Paul; Salisbury, Steven (6 October 2023). "A second specimen of the pterosaur Thapunngaka shawi from the Lower Cretaceous (upper Albian) Toolebuc Formation of North West Queensland, Australia". Cretaceous Research . 154. doi: 10.1016/j.cretres.2023.105740 .
  7. 1 2 Andres, Brian (2021-12-14). "Phylogenetic systematics of Quetzalcoatlus Lawson 1975 (Pterodactyloidea: Azhdarchoidea)". Journal of Vertebrate Paleontology . 41 (sup1): 203–217. Bibcode:2021JVPal..41S.203A. doi: 10.1080/02724634.2020.1801703 . ISSN   0272-4634. S2CID   245078533.
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Pterosauria
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Pterodactylus BMMS7 life.png Plataleorhynchus.jpg
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Bakonydraco as tapejarid DB.jpg

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  • Haliskia ?
  • Ludodactylus ?
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Targaryendraconia?
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Anhangueria
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Hamipteridae?
  • Hamipterus
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Anhangueridae
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  • Cearadactylus ?
  • Coloborhynchus
  • Ferrodraco ?
  • Guidraco
  • Haliskia ?
  • Liaoningopterus
  • Ludodactylus
  • Maaradactylus
  • Mythunga
  • Nicorhynchus
  • Siroccopteryx ?
  • Thapunngaka
  • Tropeognathus
  • Uktenadactylus
Pteranodon longiceps mmartyniuk wiki.png

Nyctosaurus DB.jpg

Ludodactylus.jpg
Taxon identifiers
Haliskia
  • Wikidata: Q126540216
  • IRMNG: 11944915
  • Paleobiology Database: 492614
Haliskia peterseni
  • Wikidata: Q126540218
  • Paleobiology Database: 492615
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