Eureptilia
Information about Eureptilia
| Eureptilians Fossil range: Late Carboniferous - Recent | ||||||||
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Eureptilia ("true reptiles") is one of the two major clades of the Sauropsida, the other being Anapsida (or Parareptilia). Eureptilia includes not only all Diapsids, but also a number of primitive Permo-Carboniferous forms previously classified under the Anapsida, in the old (no longer recognised) order "Cotylosauria".
Primitive eureptilians were all small, superficially lizard-like forms, that probably scurried through the Paleozoic undergrowth in search of insects. The diapsids are the only eureptilian clade to continue beyond the Permian Period. Eureptilia is defined by the skull having greatly reduced supraoccipital, tabular, and supratemporal bones that are no longer in contact with the postorbital.
Phylogeny
Cladogram modified aftervLaurin and Reisz (1995):SauropsidaAnapsida (=Parareptilia) `--EureptiliaCaptorhinidae `--RomeriidaProtorothyrididae `--Diapsida
External links
- Eureptilia examples of some Permian species
- Eureptilia
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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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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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 ("lizard-face") is a group of amniotes that includes reptiles, dinosaurs, and birds. Among amniotes, sauropsida is distinguished from theropsida ("beast-face"), also called synapsids.
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Taxonomy
Classification to order level, after Benton, 2004...... Click the link for more information.
19th century - 20th century - 21st century
1910s 1920s 1930s - 1940s - 1950s 1960s 1970s
1944 1945 1946 - 1947 - 1948 1949 1950
Year 1947 (MCMXLVII
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1910s 1920s 1930s - 1940s - 1950s 1960s 1970s
1944 1945 1946 - 1947 - 1948 1949 1950
Year 1947 (MCMXLVII
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Captorhinidae
Case, 1911
Genera
See text
Captorhinidae (also known as cotylosaurs, or 'stem reptiles') were the earliest and most primitive reptiles.
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Case, 1911
Genera
See text
Captorhinidae (also known as cotylosaurs, or 'stem reptiles') were the earliest and most primitive reptiles.
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This article or section needs copy editing for grammar, style, cohesion, tone and/or spelling.
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Sauropsida*
Goodrich, 1916
Subclasses
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Goodrich, 1916
Subclasses
- Anapsida
- Diapsida
- Reptilia Laurenti, 1768
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Anapsida
Osborn, 1903
Orders
Testudines (Turtles, tortoises & terrapins)
Mesosauria - extinct
Millerettidae - extinct
Nyctiphruretidae - extinct
Pareiasauridae - extinct
Procolophonidae - extinct
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Osborn, 1903
Orders
Testudines (Turtles, tortoises & terrapins)
Mesosauria - extinct
Millerettidae - extinct
Nyctiphruretidae - extinct
Pareiasauridae - extinct
Procolophonidae - extinct
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Parareptilia
Olson, 1947
Groups
See cladograms below
Parareptilia ("at the side of reptiles") is a subclass or clade of Reptiles which are variously defined as an extinct group of primitive anapsids, or a more cladistically correct alternative to
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Olson, 1947
Groups
See cladograms below
Parareptilia ("at the side of reptiles") is a subclass or clade of Reptiles which are variously defined as an extinct group of primitive anapsids, or a more cladistically correct alternative to
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Diapsida
Osborn, 1903
Groups
See text
Diapsids ("two arches") are a group of tetrapod animals that developed two holes (temporal fenestra) in each side of their skulls, about 300 million years ago during the late Carboniferous period.
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Osborn, 1903
Groups
See text
Diapsids ("two arches") are a group of tetrapod animals that developed two holes (temporal fenestra) in each side of their skulls, about 300 million years ago during the late Carboniferous period.
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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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The Carboniferous is a major division of the geologic timescale that extends from the end of the Devonian period, about 359.2 ± 2.5 Ma (million years ago), to the beginning of the Permian period, about 299.0 ± 0.8 Ma (ICS 2004).
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Diapsida
Osborn, 1903
Groups
See text
Diapsids ("two arches") are a group of tetrapod animals that developed two holes (temporal fenestra) in each side of their skulls, about 300 million years ago during the late Carboniferous period.
..... Click the link for more information.
Osborn, 1903
Groups
See text
Diapsids ("two arches") are a group of tetrapod animals that developed two holes (temporal fenestra) in each side of their skulls, about 300 million years ago during the late Carboniferous period.
..... Click the link for more information.
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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skull is a bony structure found in many animals which serves as the general framework for the head. The skull supports the structures of the face and protects the head against injury.
The skull can be subdivided into two parts: the cranium and the mandible.
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The skull can be subdivided into two parts: the cranium and the mandible.
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The postorbital is one of the bones in vertebrate skulls which forms a portion of the dermal skull roof and, sometimes, a ring about the orbit. Generally, it is located behind the postfrontal and posteriorly to the orbital fenestra.
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Cladistics is a philosophy of classification that arranges organisms only by their order of branching in an evolutionary tree and not by their morphological similarity, in the words of Luria et al. (1981).
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Sauropsida ("lizard-face") is a group of amniotes that includes reptiles, dinosaurs, and birds. Among amniotes, sauropsida is distinguished from theropsida ("beast-face"), also called synapsids.
..... Click the link for more information.
Taxonomy
Classification to order level, after Benton, 2004...... Click the link for more information.
Anapsida
Osborn, 1903
Orders
Testudines (Turtles, tortoises & terrapins)
Mesosauria - extinct
Millerettidae - extinct
Nyctiphruretidae - extinct
Pareiasauridae - extinct
Procolophonidae - extinct
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Osborn, 1903
Orders
Testudines (Turtles, tortoises & terrapins)
Mesosauria - extinct
Millerettidae - extinct
Nyctiphruretidae - extinct
Pareiasauridae - extinct
Procolophonidae - extinct
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Parareptilia
Olson, 1947
Groups
See cladograms below
Parareptilia ("at the side of reptiles") is a subclass or clade of Reptiles which are variously defined as an extinct group of primitive anapsids, or a more cladistically correct alternative to
..... Click the link for more information.
Olson, 1947
Groups
See cladograms below
Parareptilia ("at the side of reptiles") is a subclass or clade of Reptiles which are variously defined as an extinct group of primitive anapsids, or a more cladistically correct alternative to
..... Click the link for more information.
Captorhinidae
Case, 1911
Genera
See text
Captorhinidae (also known as cotylosaurs, or 'stem reptiles') were the earliest and most primitive reptiles.
..... Click the link for more information.
Case, 1911
Genera
See text
Captorhinidae (also known as cotylosaurs, or 'stem reptiles') were the earliest and most primitive reptiles.
..... Click the link for more information.
Protorothyrididae
Genera
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Genera
- Anthracodromeus
- Archerpeton
- Brouffia
- Coelostegus
- Hylonomus
- Paleothyris
- Protorothyris
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Diapsida
Osborn, 1903
Groups
See text
Diapsids ("two arches") are a group of tetrapod animals that developed two holes (temporal fenestra) in each side of their skulls, about 300 million years ago during the late Carboniferous period.
..... Click the link for more information.
Osborn, 1903
Groups
See text
Diapsids ("two arches") are a group of tetrapod animals that developed two holes (temporal fenestra) in each side of their skulls, about 300 million years ago during the late Carboniferous period.
..... Click the link for more information.
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