Adriosaurus is an extinct genus of squamate which lived in what is now Slovenia and other parts of Europe during the Late Cretaceous. It was snake-like and grew up to 30–40 cm (12–16 in) in length. This is the first fossil record of vestigial limbs in lizards. It lost its manus and forearm completely in order to elongate its axial skeleton. These unique anatomical features led to discussions of the evolutionary patterns of limb reduction in Squamata.
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| - Adriosaurus (en)
- Adriosaurus (es)
- Adriosaurus (it)
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| - Adriosaurus es un género extinto de reptil escamoso acuático que vivió hace unos 95 millones de años. Tenía forma de serpiente y medía entre 25 y 30 cm. Este es el primer registro fósil de extremidades vestigiales en lagartos, lo cual da a los científicos una idea sobre la época en la que los lagartos terrestres evolucionaron dejando de poseer extremidades y regresando a sus orígenes acuáticos. Cladograma basado en Palci y Caldwell (2010a), Caldwell y Palci (2010b): (es)
- L'adriosauro (gen. Adriosaurus) è un rettile estinto, appartenente agli squamati. Visse all'inizio del Cretaceo superiore (Cenomaniano – Turoniano, circa 88 milioni di anni fa) e i suoi resti sono stati ritrovati in Slovenia. (it)
- Adriosaurus is an extinct genus of squamate which lived in what is now Slovenia and other parts of Europe during the Late Cretaceous. It was snake-like and grew up to 30–40 cm (12–16 in) in length. This is the first fossil record of vestigial limbs in lizards. It lost its manus and forearm completely in order to elongate its axial skeleton. These unique anatomical features led to discussions of the evolutionary patterns of limb reduction in Squamata. (en)
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| - London specimen of A. suessi above, with interpretative drawing of its skull on the left. Vienna holotype specimen of A. suessi below. (en)
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| - * A. microbrachis (Palci & Caldwell, 2007)
* A. skrbinensis (Caldwell & Palci, 2010)
* A. suessi (Seeley, 1881 ) (en)
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| - Adriosaurus is an extinct genus of squamate which lived in what is now Slovenia and other parts of Europe during the Late Cretaceous. It was snake-like and grew up to 30–40 cm (12–16 in) in length. This is the first fossil record of vestigial limbs in lizards. It lost its manus and forearm completely in order to elongate its axial skeleton. These unique anatomical features led to discussions of the evolutionary patterns of limb reduction in Squamata. Adriosaurus includes three species: A. microbrachis (“micro”, meaning small, and “brachis”, meaning arm, referring to the vestigial forelimb composed of only the humerus), A skrbinensis (named after the location where they found the fossil, Skrbina, northwest of Komen, Slovenia) and A. suessi. However, A. microbrachis lacks many crucial characters to be qualified for cladistic analysis, thus it's not included in the list of terminal taxa. (en)
- Adriosaurus es un género extinto de reptil escamoso acuático que vivió hace unos 95 millones de años. Tenía forma de serpiente y medía entre 25 y 30 cm. Este es el primer registro fósil de extremidades vestigiales en lagartos, lo cual da a los científicos una idea sobre la época en la que los lagartos terrestres evolucionaron dejando de poseer extremidades y regresando a sus orígenes acuáticos. Cladograma basado en Palci y Caldwell (2010a), Caldwell y Palci (2010b): (es)
- L'adriosauro (gen. Adriosaurus) è un rettile estinto, appartenente agli squamati. Visse all'inizio del Cretaceo superiore (Cenomaniano – Turoniano, circa 88 milioni di anni fa) e i suoi resti sono stati ritrovati in Slovenia. (it)
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