logo
Find us on
Twitter Facebook LinkedIn
Skip Navigation Links
logo 9/22/2024 2:27:48 PM     
A new stem-tetrapod fish from the Middle–Late Devonian of central Australia 
By Brian Choo , Timothy Holland , Alice M. Clement , Benedict King , Tom Challands AU Source: tandfonline 1/13/2024
Brian Choo , Timothy Holland , Alice M. Clement , Benedict King , Tom Challands
Credit: Brian Choo et al., Journal of Vertebrate Paleontology
Remote Devonian exposures in central Australia have produced significant but highly fragmentary remains of fish-grade tetrapodomorphs. We describe a new tetrapodomorph from the Middle–Late Devonian (Givetian–Frasnian) Harajica Sandstone Member of the Amadeus Basin, Northern Territory, which is represented by several nearly complete skulls along with much of the body and postcranial skeleton.
 

The new form has a posteriorly broad postparietal shield, broad, triangular extratemporal bones, and a lanceolate parasphenoid. The spiracular openings are particularly large, a character also recorded in elpistostegalians and Gogonasus, demonstrating that these structures, suggestive of spiracular surface air-breathing, appeared independently in widely differing nodes of the stem-tetrapod radiation. A phylogenetic analysis resolves the new form within a cluster of osteolepidid-grade taxa, either as part of a polytomy or as the most basally-branching representative of a clade containing ‘osteolepidids,’ canowindrids, and megalichthyids.

 
Continue...

News Id SourceStampcountry
5251‘Unsafe’ levels of antibiotics found in rivers in 72 countriesfrance242019-05-27CA
5252'The fish can't get through': Tsilhqot'in issues salmon closure notice after Big Bar landslideCBC News2019-09-03CA
5253Рыбак в Томской области выловил гигантскую щукуTB-22019-09-03RU
5254Salmon can now be transported around Fraser River landslide by truck, officials sayThe Canadian Press2019-09-03CA
5255Squamish River pink salmon fishery should be closed, say local conservationistsCBC News2019-09-02CA
5256Battling the tench fish invasion: 'Like Game of Thrones under water'montreal gazette2019-08-31CA
5257Ocean Choice International off the hook for illegal fishing chargeCBC News2019-08-29CA
5258Red Deer to remove invasive goldfish infestation from pondCBC News2019-08-29CA
5259Alarm raised after invasive smallmouth bass spotted in MiramichiCBC News2019-08-27CA
5260Group braces for ‘really bad year’ for salmon population in Sackville RiverGlobal News2016-08-16CA
5261Heat stress that killed thousands of salmon in Alaska is a sign of things to come, scientist warnsCBC News2019-08-24CA
5262Rocky River construction stalling salmon, author saysCBC News2015-08-18CA
5263Fish with ‘two jaws’ caught in New YorkIndependent2019-08-22US
5264От Ганга до Волги: как спасти реки от загрязнения?habr2019-08-22RU
5265Lured in: Fishing at stocked trout pondsCBC News2019-08-22CA
5266Gulf of St. Lawrence cod extinction 'highly probable,' says DFOCBC News2019-08-21CA
5267Fly-fishing in the remote reaches of HokkaidoTheJapanLife2019-08-20JP
5268Genetic study of sockeye salmon in B.C. river suggests 75% decline since 1913CBC News2019-08-20CA
5269The 'Codfather' will never fish again, after fake Russian mobsters took him downWashington Post2019-08-20CA
5270'What fishing season?': Local First Nations worry about state of fishing in Fraser RiverCBC News2019-08-17CA
5271Fish buyer in P.E.I. opens plant to promote Canada's sustainable tuna fisheryctv news2019-08-12CA
5272Invasion of the giant goldfish: Pets overrun local swimming holeCBC News2019-08-10CA
5273After fish die in river, Quebec tells Environment Canada: Go fish for dataOttawa Citizen2019-08-10CA
5274Invasive fish being pulled from Banff lakes to protect native speciesCBC News2015-07-21CA
5275Зубастый монстр: огромного сома выбросило на берег в Самарской областиRed Star2019-08-10RU

214 215 216 210 of [217 - pages.]