|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
It was reranked as the superfamily Amphichelydia by Hay (1908).
It was assigned to Chelonia by Lydekker (1889); to Testudinata by Lydekker (1889); to Testudinata by Baur (1893); to Thecophora by Hay (1908); to Thecophora by Roxo (1937); to Testudinata by Estes (1964); and to Chelonia by Swinton (1934), Olson (1947), Delair (1958) and Khosatzky and Mlynarski (1971).
|Year||Name and author|
|1889||Amphichelydia Lydekker pp. 204-205|
|1893||Amphichelydia Baur p. 672|
|1908||Amphichelydia Hay pp. 43-44|
|1934||Amphichelydia Swinton p. 75|
|1937||Amphichelydia Roxo p. 43|
|1947||Amphichelydia Olson pp. 44, 45|
|1958||Amphichelydia Delair p. 47|
|1964||Amphichelydia Estes p. 96|
|1971||Amphichelydia Khosatzky and Mlynarski p. 132|
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|O. P. Hay 1908||Thecophorous turtles having a carapace composed of neural, costal, and peripheral bones and a plastron in which the epiplastra are in contact with the hyoplastra. Mesoplastra usually, perhaps always, present. Intergular and inframarginal scutes probably always developt. Skull essentially crvptodiran in stiuctuie, but with various primitive elements. Neck short, the vertebrae little differentiated. Limbs, so far as known, fitted for walking.|