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Re: [dinosaur] Temnodontosaurus trigonodon formations query



ICHTHYOSAURIA of FRANCE

Although not specifically Temnodontosaurus trigonodon / most Ichthyosaurs found in France have been associated with or at times made junior synonyms of T. trigonodon / with the exceptions of specimens 5,6,7 & 9 which are associated with Platypterygius.

I couldn't find a formation named for Lafarge quarry, but this article has a wealth of information about it and the ichthyosaur and associated vertebrates found there:

https://www.researchgate.net/publication/237076535

VINCENT, MARTIN, FISCHER, GUILLAUME SUAN, KHALLOUFI, SUCHÃRAS-MARX, LÃNA, JANNEAU, ROUSSELLE & RULLEAU, 2013. "Marine vertebrate remains from the Toarcian-Aalenian succession of Southern Beaujolais, RhÃne, France"  Geological Magazine  Sept 2013

DOI: 10.1017/S0016756812000982

Belmont dâAzergues (Lafarge quarry), Middle Toarcian (bifrons/variabilis) (Jurassic of France)

Where: Rhone, France (45.9Â N, 4.7Â E: paleocoordinates 34.6Â N, 15.5Â E)

When: Hildoceras bifrons and Haugia variabilis ammonoid zone, Middle Toarcian (182.0 - 175.6 Ma)

Environment/lithology: marine; bioturbated, phosphatic marl and ooidal limestone

Note: T. azerguensis had a similar size and postcranial anatomy to other Temnodontosaurus species, however its cranial morphology differed. The rostrum was more elongate and thin and had a reduced quadrate. Since T. azerguensis either had very small teeth or no teeth at all, it has been proposed that it was probably not effective at eating hard shelled or bony prey, and instead had a diet of smaller and softer prey compared to the other Temnodontosaurus species. T. azerguensis is younger than other ichthyosaurs, originating from the bifrons ammiote zone of the middle Toarcian.

Primary reference: P. Vincent, J. E. Martin, V. Fischer, G. Suan, B. Khalloufi, B. SuchÃras-Marx, A. LÃna, K. Janneau, B. Rouselle and L. Rulleau. 2013. Marine vertebrate remains from the ToarcianâAalenian succession of southern Beaujolais, RhÃne, France. Geological Magazine

Belmont dâAzergues (Lafarge quarry), Lower Aalenian (opalinum Zone) (Jurassic of France)

Where: Rhone, France (45.9Â N, 4.7Â E: paleocoordinates 35.0Â N, 15.3Â E)

When: Leioceras opalinum ammonoid zone, Early/Lower Aalenian (175.6 - 171.6 Ma)

Environment/lithology: marine; shelly/skeletal, yellow, sandy limestone and red, yellow, calcareous sandstone

Primary reference: P. Vincent, J. E. Martin, V. Fischer, G. Suan, B. Khalloufi, B. SuchÃras-Marx, A. LÃna, K. Janneau, B. Rouselle and L. Rulleau. 2013. Marine vertebrate remains from the ToarcianâAalenian succession of southern Beaujolais, RhÃne, France. Geological Magazine

Belmont dâAzergues (Lafarge quarry), Upper Toarcian (Jurassic of France)

Where: Rhone, France (45.9Â N, 4.7Â E: paleocoordinates 34.6Â N, 15.5Â E)

When: Late/Upper Toarcian (180.1 - 175.6 Ma)

Environment/lithology: marine; bioturbated, gray, green, red marl

Primary reference: P. Vincent, J. E. Martin, V. Fischer, G. Suan, B. Khalloufi, B. SuchÃras-Marx, A. LÃna, K. Janneau, B. Rouselle and L. Rulleau. 2013. Marine vertebrate remains from the ToarcianâAalenian succession of southern Beaujolais, RhÃne, France. Geological Magazine

Belmont dâAzergues (Lafarge quarry), Lower Toarcian (serpentinum Zone) (Jurassic of France)

Where: Rhone, France (45.9Â N, 4.7Â E: paleocoordinates 34.4Â N, 14.7Â E)

When: Harpoceras serpentinum ammonoid zone, Early/Lower Toarcian (183.0 - 182.0 Ma)

Environment/lithology: marine; massive, dolomitic, yellow, muddy limestone

Primary reference: P. Vincent, J. E. Martin, V. Fischer, G. Suan, B. Khalloufi, B. SuchÃras-Marx, A. LÃna, K. Janneau, B. Rouselle and L. Rulleau. 2013. Marine vertebrate remains from the ToarcianâAalenian succession of southern Beaujolais, RhÃne, France. Geological Magazine

Villers-sur-Mer (Cretaceous of France)

Where: Normandy, France (49.3Â N, 0.0Â W: paleocoordinates 38.1Â N, 1.8Â E)

When: Early/Lower Cenomanian (99.7 - 94.3 Ma)

Environment/lithology: marine; lithology not reported

Primary reference: H.-A. Blain, G. Pennetier, and E. Pennetier. 2003. PrÃsence du genre Platypterygius (Ichthyosauria, Reptilia) dans le CÃnomanien infÃrieur de Villers-sur-Mer (Normandie, France). LâEcho des Falaises 7:35-49

Octeville (Cretaceous of France) aka: Ichthyosaur locality

Where: Normandy, France (49.6Â N, 0.1Â E: paleocoordinates 37.9Â N, 2.9Â E)

When: Late/Upper Albian (105.3 - 99.7 Ma)

Environment/lithology: marine; lithology not reported

Primary reference: H.-A. Blain, G. Pennetier, and E. Pennetier. 2003. PrÃsence du genre Platypterygius (Ichthyosauria, Reptilia) dans le CÃnomanien infÃrieur de Villers-sur-Mer (Normandie, France). LâEcho des Falaises 7:35-49

Burgundy icthyosaur locality (Jurassic of France) aka: Temnodontosaurus burgundiae locality

Where: Saint Columbe, Burgundy, France (47.5Â N, 4.3Â E: paleocoordinates 35.8Â N, 12.4Â E)

When: Early/Lower Jurassic (201.6 - 175.6 Ma)

Environment/lithology: marine; lithology not reported

Note: The validity of the species T. burgundiae has been disputed. In 1995, McGowan proposed Leptopterygius burgundiae should be placed in Temnodontosaurus. The paleontologist Michael Maisch does not see T. burgundiae as belonging to Temnodontosaurus. In 1998, Maisch identified this name as a junior synonym of T. trigonodon. Other specialists recognize T. burgundiae as a species including Martin Sander who described in 2000 specimens from the Toarcian of the Holzmaden area of Germany and from France as being Temnodontosaurus burgundiae.

Primary reference: P. M. Sander. 2000. Ichthyosauria: their diversity, distribution and phylogeny. Palaeontologische Zeitschrift 74(1/2):1-35

Saint-Jouin ichthyosaur (Cretaceous of France) Also known as SaintâJouinâBruneval; Platypterygius hercynicus referred specimen

Where: Basse-Normandie, France (49.6Â N, 0.2Â E: paleocoordinates 38.0Â N, 2.9Â E)

When: Mortoniceras inflatum ammonoid zone, Late/Upper Albian (105.3 - 99.7 Ma)

Environment/lithology: marine; glauconitic sandstone

Collected by M. Debris; reposited in the MNHN

Primary reference: E. Buffetaut. 1977. Remarques preliminaires sur l'ichthyosaur de Saint-Jouin. Bulletin de la Societe Geologique de Normandie et des amies du Museum du Havre 64(1):17-19



Hope this helps

John Schneiderman

john-schneiderman@cox.net

On August 19, 2020 at 11:12 AM Gregory Paul <gsp1954@aol.com> wrote:


I am looking for the names of the French formations that the species T. trigonodon has been found in (already know it is the Posidonienshiefer in Germany). 

GSPaul