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Allaru Formation

Coordinates: 24°52′02.17″S 146°14′19.85″E / 24.8672694°S 146.2388472°E / -24.8672694; 146.2388472
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Allaru Formation
Stratigraphic range: Albian
~112–100 Ma
TypeGeological formation
Unit ofRolling Downs Group
UnderliesMackunda Formation
OverliesToolebuc Formation
ThicknessUp to 700 m (2,300 ft)
Lithology
PrimaryMudstone
OtherSiltstone, sandstone, limestone
Location
Coordinates24°52′02.17″S 146°14′19.85″E / 24.8672694°S 146.2388472°E / -24.8672694; 146.2388472
Approximate paleocoordinates51°00′S 133°06′E / 51.0°S 133.1°E / -51.0; 133.1
RegionQueensland
Country Australia
ExtentEromanga Basin
Allaru Formation is located in Australia
Allaru Formation
Allaru Formation (Australia)

The Allaru Formation, also known as the Allaru Mudstone, is a geological formation in Queensland, Australia, whose strata date back to the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.[1]

Fossil content

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Possible indeterminate ankylosaur remains are present in Queensland. Indeterminate ornithopod remains are present in Queensland.[1]

Archosaurs

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Dinosaurs

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Genus Species Location Material Notes Images
Austrosaurus A. mckillopi Queensland "Doral vertebrae [and possible] incomplete limb remains from several individuals"[2] A Somphospondyli sauropod. [1]
Kunbarrasaurus K. ieversi Queensland A parankylosaur. [1][3]
?Muttaburrasaurus ?M. sp. Queensland [1]

Reptiles

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Genus Species Location Material Notes Images
Elasmosauridae Indeterminate Specimen number QMF2100, an articulated torso. Stomach cavity contains crustacean and fish remains as well as ~135 gastroliths.[4] [4]
Notochelone N. costata [5]
Platypterygius P. australis (=longmani) [5]

Fish

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Genus Species Location Material Notes Images
Cooyoo C. australis Queensland [6]
Flindersichthys F. denmeadi [7]
Pachyrhizodus P. marathonensis, P. grawi Two species known from both this and the Toolebuc Formation[8]
Richmondichthys R. sweeti An aspidorhynchid also found in the Toolebuc Formation[9]

Invertebrates

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Genus Species Location Material Notes Images
Eromangateuthis E. soniae Queensland "Gladius" [2]
Goodhallites G. goodhalli [10]
Inoceramus I. sutherlandi Queensland [11]
Mckenziephyllia M. accordensis [12]

See also

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References

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  1. ^ Jump up to: a b c d e Weishampel et al., 2004, pp.573-574
  2. ^ Jump up to: a b Fuchs, Dirk (2019). "Eromangateuthis N. Gen., a New Genus for a Late Albian Gladius-Bearing Giant Octobrachian (Cephalopoda: Coleoidea)". Paleontological Contributions. 2019 (21): 1–3. doi:10.17161/1808.29619. ISSN 1946-0279. S2CID 204976334.
  3. ^ Leahey et al., 2015
  4. ^ Jump up to: a b Colin R. McHenry; Alex G. Cook; Stephen Wroe (November 2005). "Bottom-Feeding Plesiosaurs". Science. 310 (5745): 75. doi:10.1126/science.1117241. PMID 16210529. S2CID 28832109 – via ResearchGate.
  5. ^ Jump up to: a b Kear, Benjamin P. (June 2003). "Cretaceous marine reptiles of Australia: A review of taxonomy and distribution". Cretaceous Research. 24 (3): 277–303. Bibcode:2003CrRes..24..277K. doi:10.1016/S0195-6671(03)00046-6 – via ResearchGate.
  6. ^ Lovisa Wretman; Benjamin P. Kear (April 2014). "Bite marks on an ichthyodectiform fish from Australia: Possible evidence of trophic interaction in an Early Cretaceous marine ecosystem". Alcheringa. 38 (2): 170–176. Bibcode:2014Alch...38..170W. doi:10.1080/03115518.2014.848692. S2CID 140194963 – via ResearchGate.
  7. ^ Bartholomai, A. (2010). "Revision of Flindersichthys denmeadi Longman 1932, a marine teleost from the Lower Cretaceous of the Great Artesian Basin, Queensland". Memoirs of the Queensland Museum. S2CID 189970876.
  8. ^ Bartholomai, A. (17 February 2012). "The pachyrhizodontid teleosts from the marine Lower Cretaceous (latest mid to late Albian) sediments of the Eromanga Basin, Queensland, Australia". Memoirs of the Queensland Museum – Nature. 56 (1): 119–148.
  9. ^ Bartholomai, A. (2004). "The large aspidorhynchid fish, Richmondichthys sweeti (Etheridge Jnr and Smith Woodward, 1891) from Albian Marine deposits of Queensland, Australia". Memoirs of the Queensland Museum. S2CID 195531265.
  10. ^ R.A. Henderson; W.J. Kennedy (2002). "Occurrence of the ammonite Goodhallites goodhalli (J. Sowerby) in the Eromanga Basin, Queensland: an index species for the late Albian (Cretaceous)". Alcheringa. 26 (2): 233–247. Bibcode:2002Alch...26..233H. doi:10.1080/03115510208619254. S2CID 130589426 – via ResearchGate.
  11. ^ Patrick Mark Smith; Timothy Holland (July 2016). "Cretaceous time capsules: remarkable preservation of fish and crustaceans inside the bivalve Inoceramus sutherlandi McCoy, 1865 from the Allaru Mudstone (late Albian), Eromanga Basin, Queensland". ResearchGate. doi:10.13140/RG.2.1.2264.9842.
  12. ^ John S. Jell; Alex G. Cook; Peter A. Jell (2010). "Australian Cretaceous Cnidaria and Porifera". Alcheringa: An Australasian Journal of Palaeontology. 35 (2): 241–284. doi:10.1080/03115518.2011.532322. S2CID 129707733.

Bibliography

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