|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Reptilia - Testudines - Eurysternidae
It was synonymized subjectively with Eurysternum crassipes by Wagner (1861); it was synonymized subjectively with Eurysternum wagleri by Bräm (1965); it was recombined as Palaeomedusa testa by Meyer (1860), Fraas (1903), Joyce (2003) and Anquetin et al. (2017).
|Year||Name and author|
|1859||Eurysternum crassipes Wagner p. 553|
|1860||Palaeomedusa testa Meyer p. 136 figs. plate 20, fig. 2|
|1860||Thalassemys marina von Meyer p. 72 figs. plate 20, fig. 2|
|1861||Eurysternum crassipes Wagner|
|1892||Eurysternum crassipes Lortet p. 24|
|1903||Palaeomedusa testa Fraas p. 72|
|2003||Palaeomedusa testa Joyce|
|2017||Palaeomedusa testa Anquetin et al.|
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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.
|J. Anquetin et al. 2017||Palaeomedusa testa differs from all other “eurysternids” by having an oval carapace that is narrow anteriorly, reduced to absent costo-peripheral fontanelles, an anteriorly narrow vertebral I that only contacts the cervicals anteriorly, a shallow nuchal notch, and stout manual digits.|