Lueders Fm. Locality 2: Artinskian - Kungurian, Texas
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Chondrichthyes
- Hybodontiformes
- Hybodontidae
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Hybodus cf. copei
Hay 1899
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1 individual | |||||||||
| UCLA VP 2014, spines, amount not specified | ||||||||||
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Chondrichthyes
- Xenacanthiformes
- Xenacanthidae
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Xenacanthus texensis
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| UCLA VP 2017, teeth, amount not specified | ||||||||||
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Xenacanthus platypternus
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| UCLA VP 2018, teeth, amount not specified | ||||||||||
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Chondrichthyes
- Bransonelliformes
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Xenacanthus luedersensis
Berman 1970
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| recombined as Barbclabornia luedersensis | ||||||||||
| UCLA VP 2019, teeth, amount not specified | ||||||||||
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Chondrichthyes
- Orodontiformes
- Orodontidae
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Orodus sp.
Agassiz 1836
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| UCLA VP 2016, teeth, amount not specified | ||||||||||
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Chondrichthyes
- Petalodontiformes
- Janassidae
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Janassa sp.
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| UCLA VP 2020, teeth, amount not specified | ||||||||||
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Chondrichthyes
- Petalodontiformes
- Belantseidae
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Ctenoptychius sp.
Agassiz 1838
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| UCLA VP 2021, teeth, amount not specified | ||||||||||
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Palaeoniscoidea
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Palaeoniscoidea indet.
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| invalid subgroup of Actinopterygii | ||||||||||
| many thousand scales per pound of rock | ||||||||||
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Amphibia
- Temnospondyli
- Dissorophidae
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Aspidosaurus binasser n. sp.
Berman and Lucas 2003
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Schoch and Milner 2014 | |||||||||
| TMM 43531 (Holotype: partial skull (8cm in length) with associated vertebrae and armour) | ||||||||||
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Amphibia
- Temnospondyli
- Trimerorhachidae
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Trimerorhachis sp.
Cope 1878
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| UCLA VP 2026, "ubiquitous remains", amount not specified | ||||||||||
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Amphibia
- Diplocaulidae
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Diplocaulus sp.
Cope 1877
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| UCLA VP 2027, vertebrae and fragments of dermal bone, amount not specified | ||||||||||
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Reptilia
- Captorhinidae
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Captorhinus sp.
Cope 1896
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1 element | |||||||||
| UCLA VP 2030, humerus; see comments on taxonomic list | ||||||||||
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Molgophidae
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Lysorophus cf. tricarinatus
Cope 1877
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| synonym of Brachydectes newberryi | ||||||||||
| UCLA VP 2029, vertebrae, amount not specified | ||||||||||
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Sphenacodontidae
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Dimetrodon sp.
Cope 1878
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| several neural spines, no specimen number given | ||||||||||
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Ophiacodontidae
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Ophiacodon cf. major
Romer and Price 1940
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1 element | |||||||||
| UCLA VP 2031, cervical vertebra | ||||||||||
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Phlegethontiidae
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? Phlegethontia sp.
Cope 1871
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| UCLA VP 2028, vertebrae, amount not specified | ||||||||||
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Coelacanthimorpha
- Diplocercidiformes
- Sassenidae
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Spermatodus pustulosus
Cope 1894
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| UCLA VP 2023, "plentiful" skull elements, mainly basisphenoids | ||||||||||
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Dipnoi
- Gnathorhizidae
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Gnathorhiza sp.
Cope 1883
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| UCLA VP 2025, several tooth plates, vomerine teeth and mandibles, amount not specified | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Texas | County: | Baylor |
| Coordinates: | 33.8° North, 99.1° West (view map) | ||||
| Paleocoordinates: | 1.5° North, 29.0° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Permian | Epoch: | Cisuralian |
| 10 m.y. bin: | Permian 2 | ||
| Key time interval: | Artinskian - Kungurian | ||
| Age range of interval: | 290.10000 - 273.01000 m.y. ago |
Stratigraphy
| Geological group: | Wichita | Formation: | Lueders | Member: | Maybelle limestone |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: 8 feet below the Aa2 submember of the Maybelle limestone | |||||
Lithology and environment
| Primary lithology: | pebbly,gray argillaceous conglomerate | ||
| Includes fossils? | Y | ||
| Lithology description: "The fossiliferous layer found at site 2 is a gray, clay-pebble conglomerate. The pebbles are generally under 0.5 inch in diameter and are surrounded by a gray argillaceous matrix." | |||
| Environment: | shallow subtidal indet. | Tectonic setting: | foreland basin |
| Geology comments: "This layer is hesistantly suspected of having been deposited in a near-shore, marine situation" | |||
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
| Preservation of anatomical detail: | variable |
| Abundance in sediment: | common |
| Articulated whole bodies: | none |
| Associated major elements: | none |
| Disassociated major elements: | many |
| Disassociated minor elements: | many |
| Temporal resolution: | snapshot |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | surface (in situ),acetic,field collection |
| Reason for describing collection: | taxonomic analysis |
| Taxonomic list comments:UCLA VP 2030 was originally identified as Captorhinus aguti by Berman (1970), based on Seltin's (1959, Field. Geol.) conclusion that Captorhinus is a monospecific genus. Given that currently there are three recognized species of Captorhinus, the specimen is left without assignment to a species in the taxonomic list. | |
Metadata
| Also known as: | Lake Kemp dam | ||
| Database number: | 85300 | ||
| Authorizer: | J. Mueller, R. Butler | Enterer: | T. Liebrecht, E. Dunne |
| Modifier: | E. Dunne | Research group: | vertebrate |
| Created: | 2008-12-11 21:38:04 | Last modified: | 2016-07-22 09:51:14 |
| Access level: | authorizer only | Released: | 2011-12-11 21:38:04 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 28758. | D. S. Berman. 1970. Vertebrate Fossils from the Lueders Formation, Lower Permian of North-Central Texas. University of California Publications in Geological Sciences 86:1-61 [J. Mueller/T. Liebrecht] |
Secondary references:
| 57795 | R. R. Schoch and A. R. Milner. 2014. Handbook of Paleoherpetology Part 3A2 Temnospondyli I. [R. Butler/E. Dunne/E. Dunne] |