Gogo Formation

Gogo Formation
Stratigraphic range: Frasnian PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Underlies	Virgin Hills Formation
Overlies	Unconformity with Prices Creek Group
Thickness	Up to 700 m (2,300 ft)
Lithology
Primary	Shale, Siltstone
Other	Limestone
Location
Location	Kimberley, Western Australia
Coordinates	18.3°S 126.5°E / -18.3; 126.5
Approximate paleocoordinates	16.7°S 136.7°E / -16.7; 136.7
Region	Western Australia
Country	Australia
Type section
Named for	Gogo Station
Thickness at type section	~425 m (1,394 ft)
Gogo Formation (Australia) Show map of Australia Gogo Formation (Western Australia) Show map of Western Australia

View of Gogo Station, 1951

The Gogo Formation in the Kimberley region of Western Australia is a Lagerstätte that exhibits exceptional preservation of a Devonian reef community. The formation is named after Gogo Station, a cattle station where outcrops appear and fossils are often collected from,^[1] as is nearby Fossil Downs Station.

History

The reef, which now stands up abruptly in the western Australian desert (as the Windjana Limestone), was first identified in 1940 by paleontologist Curt Teichert, who discovered the first fossil fish from the region.^[2]

Sedimentology

Unweathered sections of the Gogo Formation are made of siltstone, shale and calcarenite with numerous limestone concretions. These concretions are resistant to weathering, producing extensive nodule fields on the ground in areas where the surrounding rock has eroded away.^[3]

The Gogo sediments represent deep, hypoxic seafloor deposits in the vicinity of a large tropical reef composed primarily of algae and stromatoporoids during the Frasnian faunal stage of the Late Devonian.^[4] Associated stratigraphic units which comprise this ancient reef system are the Windjana Formation (the actual reef structures), Pillara Limestone (reef platform) and the Sadler Formation (fore-reef deposits).^[3]

Deposition

The formation was deposited in the Frasnian (late Devonian).^[5]

Fossil preservation

The fossils of the Gogo Formation display three-dimensional soft-tissue preservation of tissues as fragile as nerves and embryos with umbilical cords.^[5] Over fifty species of fish have been described from the formation, and arthropods, including phyllocarids^[6] and eurypterids^[7] are similarly well-preserved.^[5] Nautiloids, goniatites and tentaculids are also known from the formation, but their soft tissue is not preserved.^[5]

The calcareous concretions formed around objects from the shallow reef areas which sank into the deep anoxic basins. The concretions sometimes contain the remains of fish, whose bodies are often preserved complete in three-dimensions due to rapid encasement and the slow rate of decay in the oxygen-poor surroundings. By repeated baths in a dilute acid solution, the matrix is dissolved away via a process of acid etching to reveal delicate fish fossils, some retaining impressions of soft tissues.

The discovery of Materpiscis, a placoderm preserved with an embryonic juvenile still attached by its umbilical cord, has revealed that at least some placoderms gave birth to live young.^[8]

Fossil content

Placodermi

Genus	Species	Notes	Images
Austroptyctodus	A. gardinieri	[9]
Bothriolepis	Indeterminate	[10]
Bruntonichthys	B. multidens	[11]
Bullerichthys	B. fascidens	[11]
Campbellodus	C. decipiens	[9]
Camuropiscis	C. concinnus	[12]
	C. laidlawi	[13]
Compagopiscis	C. croucheri	[14]
Eastmanosteus	E. calliaspis	[15]
Fallacosteus	F. turneri	[16]
Harrytoombsia	H. elegans	[17]
Holonema	H. westolli	[18]
Incisoscutum	I. ritchei
	I. sarahae	[19]
Kendrickichthys	K. cavernosus	[11]
Kimberleyichthys	K. bispicatus	[14]
	K. whybrowi	[14]
Materpiscis	M. attenboroughi	[20]
Latocamurus	L. coulthardi	[21]
Mcnamaraspis	M. kaprios	[22]
Pinguosteus	P. thulborni	[16]
Rolfosteus	R. canningensis	[23]
Simosteus	S. tuberculatus	[24]
Torosteus	T. tuberculatus	[14]
	T. pulchellus	[14]
Tubonasus	T. lennardensis	[23]

Actinopterygii

Genus	Species	Notes	Images
Gogosardina	G. coatesi	[14]
Mimipiscis	M. toombsi	[25]
Moythomasia	M. durgaringa
	M. lineata

Chondrichthyes

Genus	Species	Notes	Images
Gogoselachus	G. lynbeazleyae	[26]

Acanthodians

Genus	Species	Notes
Halimacanthodes	H. ahlbergi	[27]

Sarcopterygii

Genus	Species	Notes	Images
Adololopas	A. moyasmithae	[14]
Chirodipterus	C. australis	[28]
Ngamugawi	N. wirngarri	Originally considered as Diplocercides.[29][30]
Gogodipterus	G. paddyensis	[31]
Gogonasus	G. andrewsae	[32]
Griphognathus	G. whitei	[28]
Holodipterus	"H" (Holodipteroides) elderae	[14]
	H. gogoensis	[28]
	H. meemanae	[14]
Onychodus	O. jandemarrai	[33]
Pillararhynchus	P. longi	[34]
Rhinodipterus	R. kimberleyensis	[5]
Robinsondipterus	R. longi	[35]
Xeradipterus	X. hatcheri	[36]

Conodonta

Genus	Species	Notes
Polygnathus	P. varca	[37]
	P. normalis	[37]
	P. asymmetrica asymmetrica	[37]
	P. asymmetrica ovalis	[37]
Playfordia	P. primitiva	[37]
Gnamptognathus	G.? lipperti	[37]
	G.? cf. G.? lipperti	[37]
Ancyrodella	A. rotundiloba alata	[37]
	A. rotundiloba rotundiloba	[37]
Icirodus	I. symmetricus	[37]
Roundya	A. aurita	[37]

Ammonoidea

Genus	Species	Notes
Timanites	T. angustus	[37]
Tornoceras	T. (T.) simplex	[37]

Arthropoda

Genus	Species	Notes	Images
Montecaris	M. gogoensis	Phyllocarid arthropod, reaching length up to 60 centimetres (24 in).[38]
	M. sp. indet.	[38]
Schugurocaris	S. wami	Phyllocarid arthropod.[38]
	S. sp. indet.
Dithyrocaris	D. sp. indet.
Concavicaris	C. campi	Thylacocephalan arthropod.[6][39]
	C. glenisteri
	C. milesi
	C. playfordi
	C. sp.
Harrycaris	H. whittingtoni
Adelophthalmus	A. waterstoni	An eurypterid. Originally described as a species of Rhenopterus.[40]
Undescribed eurypterid		[41]
'Mushia'		Common fossil from Gogo Formation, undescribed arthropod with unknown affinity. Chemical analysis shows that is likely to be a crustacean.[41]

• Corals

References

1. "The Fossil Emblem of Western Australia" Archived 22 May 2016 at the Wayback Machine Accessed 16 August 2012.
2. Long, John (2007). Swimming in Stone: the Amazing Gogo Fossils of the Kimberley. Fremantle, W.A.: Fremantle Arts Centre.
3. "Australian Stratigraphic Names Database". Australian Government Geoscience Australia. 29 September 2010. Retrieved 28 March 2011.
4. "Gogo Reef Formation". Archived from the original on 7 March 2018. Retrieved 28 May 2008.
5. Long, J. A.; Trinajstic, K. (2010). "The Late Devonian Gogo Formation Lägerstatte of Western Australia: Exceptional Early Vertebrate Preservation and Diversity". Annual Review of Earth and Planetary Sciences. 38: 255–279. Bibcode:2010AREPS..38..255L. doi:10.1146/annurev-earth-040809-152416.
6. Ian Rolfe, W. D. (1966). "Phyllocarid Crustacean Fauna of European Aspect from the Devonian of Western Australia". Nature. 209 (5019): 192. Bibcode:1966Natur.209..192R. doi:10.1038/209192a0. S2CID 129316791.
7. Tetlie, O. E.; Braddy, S. J.; Butler, P. D.; Briggs, D. E. G. (2004). "A New Eurypterid (Chelicerata: Eurypterida) from the Upper Devonian Gogo Formation of Western Australia, with a Review of the Rhenopteridae". Palaeontology. 47 (4): 801. Bibcode:2004Palgy..47..801T. doi:10.1111/j.0031-0239.2004.00390.x.
8. "Aussie fish fossil gives birth to history" Accessed 29 May 2008.
9. Long, J.A. 1997. Ptyctodontid fishes (Vertebrata, Placodermi) from the Late Devonian Gogo Formation, Western Australia, with a revision of the European genus Ctenurella Orvig, 1960. Geodiversitas 19(3): 515–555.
10. Patten, W. (July 1904). "New facts concerning Bothriolepis". Biological Bulletin. 7 (2): 113–124. doi:10.2307/1535537. JSTOR 1535537.
11. DENNIS, K. and MILES, R. S. (1980), New durophagous arthrodires from Gogo, Western Australia. Zoological Journal of the Linnean Society, 69: 43–85. doi:10.1111/j.1096-3642.1980.tb01932.x
12. Dennis, Kim; R. S. Miles (September 1979). "A second eubrachythoracid arthrodire from Gogo, Western Australia". Zoological Journal of the Linnean Society. 67: 1–29. doi:10.1111/j.1096-3642.1979.tb01102.x.
13. Locality No. 20, Stromatoporoid Camp Area at Fossilworks.org
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16. Long, J. A. 1990a, "Two new arthrodires (placoderm fishes) from the Upper Devonian Gogo Formation, Western Australia", Memoirs of the Queensland Museum 28, De Vis Symposium Volume, pp. 51–64.
17. "Fossilworks: Harrytoombsia". fossilworks.org.
18. Denison, Robert (1978). Placodermi Volume 2 of Handbook of Paleoichthyology'. Stuttgart New York: Gustav Fischer Verlag. p. 63. ISBN 978-0-89574-027-4
19. J. A. Long. 1994. A second incisoscutid arthrodire (Pisces, Placodermi) from the Late Devonian Gogo Formation, Western Australia. Alcheringa 18(1-2):59-69
20. Long, J. A.; Trinajstic, K.; Young, G. C.; Senden, T. (2008). "Live birth in the Devonian period". Nature. 453 (7195): 650–652. Bibcode:2008Natur.453..650L. doi:10.1038/nature06966. PMID 18509443. S2CID 205213348.
21. Long, J. A. (1988). "A new camuropiscid arthrodire (Pisces: Placodermi) from Gogo, Western Australia". Zoological Journal of the Linnean Society. 94 (3): 233–258. doi:10.1111/j.1096-3642.1988.tb01194.x.
22. Long, J. (1995). "A new ploudosteid arthrodire from the Upper Devonian Gogo Formation of Western Australia". Palaeontology. 38: 39–62.
23. Dennis, K.; Miles, R. S. (1979). "Eubrachythoracid arthrodires with tubular rostra1 plates from Gogo, Western Australia". Zoological Journal of the Linnean Society. 67 (4): 297–328. doi:10.1111/j.1096-3642.1979.tb01118.x.
24. Dennis, K.; Miles, R. S. (1982). "A eubrachythoracid arthrodire with a snubnose from Gogo, Western Australia". Zoological Journal of the Linnean Society. 75 (2): 153–166. doi:10.1111/j.1096-3642.1982.tb01945.x.
25. Choo, Brian (2012). "Revision of the actinopterygian genus Mimipiscis (=Mimia) from the Upper Devonian Gogo Formation of Western Australia and the interrelationships of the early Actinopterygii". Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 102 (2): 77–104. Bibcode:2012EESTR.102...77C. doi:10.1017/s1755691011011029. hdl:1885/59192. S2CID 129324004. Retrieved 29 March 2012.
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30. Clement, Alice M.; Cloutier, Richard; Lee, Michael S. Y.; King, Benedict; Vanhaesebroucke, Olivia; Bradshaw, Corey J. A.; Dutel, Hugo; Trinajstic, Kate; Long, John A. (12 September 2024). "A Late Devonian coelacanth reconfigures actinistian phylogeny, disparity, and evolutionary dynamics". Nature Communications. 15 (1): 7529. doi:10.1038/s41467-024-51238-4. ISSN 2041-1723. PMC 11392942.
31. Long, John A. (1992). "Gogodipterus paddyensis (Miles), gen. nov., a new chirodipterid lungfish from the late Devonian Gogo formation, Western Australia". The Beagle: Occasional Papers of the Northern Territory Museum of Arts and Sciences. 9: 11–20.
32. Long, J. A. (1985). "A new osteolepidid fish from the Upper Devonian Gogo Formation of Western Australia". Recs. W. A. Mus. 12 (8): 361–377.
33. Andrews, Mahala; Long, John; Ahlberg, Per; Barwick, Richard; Campbell, Ken (2006). "The structure of the sarcopterygian Onychodus jandemarrai n. sp. from Gogo, Western Australia: with a functional interpretation of the skeleton". Transactions of the Royal Society of Edinburgh. 96 (3): 197–307. doi:10.1017/s0263593300001309. S2CID 84910707 – via ResearchGate.
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