Header

UZH-Logo

Maintenance Infos

Basal reptilians, marine diapsids, and turtles: the flowering of reptile diversity


Sobral, Gabriela; Reisz, Robert; Neenan, James M; Müller, Johannes; Scheyer, Torsten M (2016). Basal reptilians, marine diapsids, and turtles: the flowering of reptile diversity. In: Clack, Jennifer A; Fay, Richard R; Popper, Arthur N. Evolution of the Vertebrate Ear. Germany, 207-243.

Abstract

Reptiles form the most diverse clade of living land vertebrates. They include lizards, snakes, crocodiles, birds, and turtles, as well as many fossil groups. In this chapter we revise the otic anatomy of early reptilians, including some aquatic groups and turtles. Basal members possessed a stout stapes that still retained its ancestral bracing function, and they lacked a tympanic membrane. The acquisition of tympanic hearing did not happen until later in the evolution of the clade and occurred independently in both parareptiles and diapsids. Parareptiles also show additional otic modifications that are convergent with much later reptilians, which are potentially related to the evolution of more terrestrial habits. In contrast, in aquatic reptiles, such as ichthyosaurs, thalattosaurs, and sauropterygians, the otic anatomy and hearing capacities are adapted to an aquatic medium, resulting in many convergences in their otic anatomy. In turtles, however, there are differences in the configuration and morphology among Triassic and modern taxa.

Abstract

Reptiles form the most diverse clade of living land vertebrates. They include lizards, snakes, crocodiles, birds, and turtles, as well as many fossil groups. In this chapter we revise the otic anatomy of early reptilians, including some aquatic groups and turtles. Basal members possessed a stout stapes that still retained its ancestral bracing function, and they lacked a tympanic membrane. The acquisition of tympanic hearing did not happen until later in the evolution of the clade and occurred independently in both parareptiles and diapsids. Parareptiles also show additional otic modifications that are convergent with much later reptilians, which are potentially related to the evolution of more terrestrial habits. In contrast, in aquatic reptiles, such as ichthyosaurs, thalattosaurs, and sauropterygians, the otic anatomy and hearing capacities are adapted to an aquatic medium, resulting in many convergences in their otic anatomy. In turtles, however, there are differences in the configuration and morphology among Triassic and modern taxa.

Statistics

Altmetrics

Additional indexing

Item Type:Book Section, not refereed, original work
Communities & Collections:07 Faculty of Science > Paleontological Institute and Museum
Dewey Decimal Classification:560 Fossils & prehistoric life
Uncontrolled Keywords:Aquatic adaptations Diapsida Marine reptiles Otic region Parareptilia Reptilia Testudines Tympanic hearing
Language:English
Date:22 December 2016
Deposited On:11 Jan 2017 15:48
Last Modified:03 Jun 2017 09:56
Series Name:Springer Handbook of Auditory Research
Number:59
ISSN:0947-2657
ISBN:978-3-319-46659-0
Publisher DOI:https://doi.org/10.1007/978-3-319-46661-3_8

Download

Full text not available from this repository.
View at publisher

TrendTerms

TrendTerms displays relevant terms of the abstract of this publication and related documents on a map. The terms and their relations were extracted from ZORA using word statistics. Their timelines are taken from ZORA as well. The bubble size of a term is proportional to the number of documents where the term occurs. Red, orange, yellow and green colors are used for terms that occur in the current document; red indicates high interlinkedness of a term with other terms, orange, yellow and green decreasing interlinkedness. Blue is used for terms that have a relation with the terms in this document, but occur in other documents.
You can navigate and zoom the map. Mouse-hovering a term displays its timeline, clicking it yields the associated documents.

Author Collaborations