Protorothyrididae

Information about Protorothyrididae

Protorothyridids
Fossil range: Late Carboniferous - Early Permian
Conservation status
Extinct (fossil)
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Sauropsida
Order:Captorhinida
Suborder:Captorhinomorpha
Family:Protorothyrididae
Genera
Protorothyrididae was a clade of small, lizard-like reptiles, possibly the ancestors of turtles and tortoises. Their skulls did not have fenestra, as is also true of modern turtles and tortoises. Protorothyridids lived during the Middle Carboniferous to Early Permian eras, in what is now North America and Europe.
Pennsylvanian is an epoch of the Carboniferous period lasting from roughly 325 Ma to 299 Ma (million years ago). As with most other geologic periods, the rock beds that define the period are well identified, but the exact date of the start and end are uncertain by a few million
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Permian is a geologic period that extends from about 299.0 ± 0.8 Ma to 251.0 ± 0.4 Ma (million years before the present; ICS 2004). It is the last period of the Paleozoic Era.
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conservation status of a species is an indicator of the likelihood of that species continuing to survive either in the present day or the future. Many factors are taken into account when assessing the conservation status of a species: not simply the number remaining, but the
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For other uses of the term, see Fossil (disambiguation)


FOSSIL is a standard for allowing serial communication for telecommunications programs under the DOS operating system.
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Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. Scientific classification also can be called scientific taxonomy, but should be distinguished from folk taxonomy, which lacks scientific basis.
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Chordata
Bateson, 1885

Typical Classes

See below

Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates.
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Sauropsida*
Goodrich, 1916

Subclasses
  • Anapsida
  • Diapsida
Synonyms
  • Reptilia Laurenti, 1768
Reptiles are tetrapods and amniotes, animals whose embryos are surrounded by an amniotic membrane, and members of the class
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Captorhinida *

Families
  • Bolosauridae
  • Captorhinidae
  • Millerettidae
  • Protorothyrididae
Captorhinida is a doubly paraphyletic grouping of early reptiles, traditionally composed of the following families:

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Hylonomus

Species: H. lyelli

Binomial name
Hylonomus lyelli

Hylonomus ("forest mouse") was an early reptile.
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Paleothyris

Paleothyris was a small, agile, lizard-like reptile which lived in the Middle Pennsylvanian epoch in Nova Scotia. Paleothyris had sharp teeth and large eyes, meaning that it was a nocturnal hunter. It was about a foot long.
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This article has been tagged since July 2007.
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Testudines
Linnaeus, 1758

Diversity
ca. 300 species in 14 extant families.

blue: sea turtles, black: land turtles


Suborders

Cryptodira
Pleurodira
See text for families.
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Testudinidae

Genera

Chersina
Cylindraspis (extinct)
Dipsochelys
Geochelone
Gopherus
Homopus
Indotestudo
Kinixys
Malacochersus
Manouria

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Fenestrae (singular: fenestra) are small pores in epithelial cells to allow for rapid exchange of molecules between blood vessels and surrounding tissue. These pores can enlarge and contract at the action of various stimuli such as noradrenaline.
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