Eoradiolites liratus (Conrad, 1852), left (upper) valve and right (lower) valve; note cardinal teeth and myophores in left valve (from Cestari & Sartorio 1995)

Eoradiolites liratus (Conrad, left (upper) valve and right (lower) valve; note cardinal teeth and myophores in left valve (from Cestari & Sartorio

(1) Fossils Explained: Rudists | Javier Ortega Hernández - Academia.edu

Hippuritaceans, colloquially known as rudists, are an extinct group that encompasses some of the most specialized and successful bivalved molluscs that have ever lived.

Hippurites radiosus  Location: U.S. National Museum of Natural History, Washington, DC Year: 2008 Merckdigitals catalogue number: 22-53133 Comments: Cretaceous, France

Hippurites radiosus Location: U. National Museum of Natural History, Washington, DC Year: 2008 Merckdigitals catalogue number: Comments: Cretaceous, France

General morphology of a shell of Radiolites (from Skelton 1979a)

General morphology of a shell of Radiolites (from Skelton

Fosiles en Huelva - Fosiles recifales || Reconstrucción de Rudistas en un ambiente marino somero del Cretáceo: 1) valva inferior; 2) valva superior

Fosiles en Huelva - Fosiles recifales || Reconstrucción de Rudistas en un ambiente marino somero del Cretáceo: 1) valva inferior; 2) valva superior

Favus antei Laviano & Skelton, 1992; note cellular shell wall in both valves; Campanian, Apulia, Italy (from Cestari & Sartorio 1995)

Favus antei Laviano & Skelton, note cellular shell wall in both valves; Campanian, Apulia, Italy (from Cestari & Sartorio

L'angolo della Geologia: Rudiste - Ippuriti

cretaceous coral in texas - Yahoo Image Search Results

Figure 9. Eoradiolites davidsoni (Hill, 1893) from the Albian of Texas (Edwards Limestone, Belton), scale bar = 10 mm; 1, EM 15703, right valve ventral side ...

Figure Eoradiolites davidsoni (Hill, from the Albian of Texas (Edwards Limestone, Belton), scale bar = 10 mm; EM right valve ventral side .

Hippurites radiosus || Late Cretaceous,France

Hippurites radiosus || Late Cretaceous,France

Figure 8. Eoradiolites plicatus (Conrad, 1852) from the Albian of Lebanon (“Cardium beds”, Beyrouth district); 1, reproduction of the original figure of

Figure Eoradiolites plicatus (Conrad, from the Albian of Lebanon (“Cardium beds”, Beyrouth district); reproduction of the original figure of

File:Radiolites sp.3 - Cretacico superior.JPG

File:Radiolites sp.3 - Cretacico superior.JPG

Caprina schiosensis Boehm, 1892; height of image is c. 20 cm; Cenomanian, NE Italy (from Cestari & Sartorio 1995)

Caprina schiosensis Boehm, height of image is c. Cenomanian, NE Italy (from Cestari & Sartorio

Different to other bivalves, one or both valves are uncoiled which allowed for accretion of the shell along the complete mantle margin and the construction of tubular shells. || Progressive uncoiling in the evolution of rudists

Different to other bivalves, one or both valves are uncoiled which allowed for accretion of the shell along the complete mantle margin and the construction of tubular shells.

Figure 13.10   Rudist growth strategies: encrusters (A, B, H and I), elevators (C, D and E) and recumbents (F, G). (From Skelton, P.W. 1985. Spec. Pap. Palaeont. 33.)

Figure 13.10 Rudist growth strategies: encrusters (A, B, H and I), elevators (C, D and E) and recumbents (F, G). (From Skelton, P.W. 1985. Spec. Pap. Palaeont. 33.)

F2.large.jpg (1800×1554)

F2.large.jpg (1800×1554)

Caprinula sp., note canals in left (upper) and right (lower) valve; from d'Orbigny (1850c)

, note canals in left (upper) and right (lower) valve;

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