Wonthaggi Formation: Difference between revisions

{{Use Australian English|date=May 2024}}

The Wonthaggi Formation was deposited within Gippsland Basin, which formed part of a [[Extensional tectonics|extensional]] [[rift valley]] system between Australia and Antarctica. The lithology primarily consists of [[Fluvial processes|fluvially]] deposited [[siliciclastic]]s derived from volcanic rocks of the Whitsunday Silicic [[Large igneous province|Large Igneous Province]] to the East, with suggestions that the sediments either originated from [[braided river]] and [[Sheet erosion|sheet flood]] deposits, or [[Meander|meandering river]] systems on vegetated [[floodplain]]s.<ref name="Galleonosaurus" /> The age of the formation is thought to be [[Valanginian]] to [[Barremian]], with the Flat Rocks site being late Barremian (~125 Ma) in age, older than the sediments from the Eumeralla Formation, which are thought to be [[Aptian]]-[[Albian]] in age.<ref name="Galleonosaurus" />

=== Amphibians ===

! colspan="5" align="center" | '''Amphibians of the Wonthaggi Formation'''

! Presence

! Images

|-

|''[[Koolasuchus]]''

|''K. cleelandi''

|Tree Trunk Point, Dwyers Hill, San Remo

|[[Chigutisauridae|Chigutisaurid]] [[Temnospondyli|temnospondyl]], last known temnospondyl

|[[File:Koolasuchus.png|center|frameless]]

|}

=== Dinosaurs ===

{| class="wikitable" align="center"

|-

! colspan="6" align="center" | '''Dinosaurs of the Wonthaggi Formation'''

|-

! Genus

! Species

! Locality

! Material

!Notes

|known as "Victorian ornithopod maxillary morphotype 4", consists of a partial right maxilla

|Intermediate in morphology between ''Galleonosaurus'' and ''Atlascopcosaurus''

| rowspan="104" |

|-

| rowspan="2" |

|

|-

|''Q. ?intrepidus''<ref name="Galleonosaurus" />

|Flat Rocks

|Known as "Victorian ornithopodan dentary morphotype 2", represented by two dentary fragments,

|Possibly distinct from ''Q. intrepidus''

|Single damaged ulna

|

|[[Ankylosauria]] indet.<ref>{{Cite journal |last1=Barrett |first1=Paul M. |last2=Rich |first2=Thomas H. |last3=Vickers-Rich |first3=Patricia |last4=Tumanova |first4=Tat'yana A. |last5=Inglis |first5=Matthew |last6=Pickering |first6=David |last7=Kool |first7=Lesley |last8=Kear |first8=Benjamin P. |date=September 2010 |title=Ankylosaurian dinosaur remains from the Lower Cretaceous of southeastern Australia |journal=Alcheringa: An Australasian Journal of Palaeontology |language=en |volume=34 |issue=3 |pages=205–217 |doi=10.1080/03115511003655430 |s2cid=128882257 |issn=0311-5518}}</ref>

|

|[[Noasauridae]] indet.<ref>{{Cite journal|last1=Brougham|first1=Tom|last2=Smith|first2=Elizabeth T.|last3=Bell|first3=Phil R.|date=2020-01-29|title=Noasaurids are a component of the Australian 'mid'-Cretaceous theropod fauna|journal=Scientific Reports|language=en|volume=10|issue=1|pages=1428|doi=10.1038/s41598-020-57667-7|pmid=31996712|pmc=6989633|bibcode=2020NatSR..10.1428B |issn=2045-2322|doi-access=free}}</ref>

|A non-[[elaphrosaurine]] noasaurid.

|[[Ornithopoda]] indet.<ref name="Galleonosaurus" />

|Different from ''Q. intrepidus.''

|[[Ornithopoda]] indet.<ref name="Galleonosaurus" />

|Indeterminate

|Cape Paterson

|single femur

|Known as "Victorian Hypsilophodontid Femur Type 2". Larger than contemporaneous ornithopods.

|-

|[[Megaraptora]] indet.

|Numerous isolated teeth, and a left [[Talus bone|astragalus]]<ref>{{Cite journal |last1=Poropat |first1=Stephen F. |last2=White |first2=Matt A. |last3=Vickers-Rich |first3=Patricia |last4=Rich |first4=Thomas H. |date=2019-07-04 |title=New megaraptorid (Dinosauria: Theropoda) remains from the Lower Cretaceous Eumeralla Formation of Cape Otway, Victoria, Australia (Including supplemental material) |url=https://www.tandfonline.com/doi/full/10.1080/02724634.2019.1666273 |journal=Journal of Vertebrate Paleontology |language=en |volume=39 |issue=4 |pages=e1666273 |doi=10.1080/02724634.2019.1666273 |s2cid=208603798 |issn=0272-4634}}</ref>

|Originally referred to ''"Allosaurus" robustus''

|[[Megaraptoridae]] indet.<ref>{{Cite journal |last1=Kotevski |first1=Jake |last2=Duncan |first2=Ruairidh J. |last3=Pentland |first3=Adele H. |last4=Rule |first4=James P. |last5=Vickers-Rich |first5=Patricia |last6=Rich |first6=Thomas H. |last7=Fitzgerald |first7=Erich M. G. |last8=Evans |first8=Alistair R. |last9=Poropat |first9=Stephen F. |date=2023-11-02 |title=A megaraptorid (Dinosauria: Theropoda) frontal from the upper Strzelecki Group (Lower Cretaceous) of Victoria, Australia |journal=Cretaceous Research |volume=154 |pages=105769 |doi=10.1016/j.cretres.2023.105769 |issn=0195-6671|doi-access=free }}</ref>

|Indeterminate

|Shack Bay

|a complete frontal, attached to a partial parietal

|

=== Mammals ===

|[[File:Corriebaatar.png|center|frameless]]

|''[[Kryoparvus]]''

[[Category:Paleontology in Victoria (state)]]

[[Category:Geology of Victoria (state)]]