Isorthis ovalis Comm. of Jura Form.: Pridoli, Lithuania
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Protochonete piltenensis
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Crinoidea
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Crinoidea indet.
Miller 1821
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Lingulata
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Lingulata indet.
Gorjansky and Popov 1985
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| given as "Linguloid" | ||||||||||
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Craniata
- Craniopsida
- Craniopsidae
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Craniops implicatus
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Strophomenata
- Strophomenida
- Shaleriidae
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Shaleria ezerensis
(Rybnikova 1966)
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Shaleria dzwinogrodensis
(Kozlowski 1929)
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Rhynchonellata
- Spiriferida
- Delthyrididae
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Delthyris elevata
Dalman 1828
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Rhynchonellata
- Athyridida
- Dayiidae
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Dayia navicula
(Sowerby 1839)
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Rhynchonellata
- Athyridida
- Rhynchospirinidae
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Homoeospira baylei
(Davidson 1848)
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Microsphaeridiorhynchus nucula
(Sowerby 1839)
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Rhynchonellata
- Orthida
- Draboviidae
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Salopina submedia
(McLearn 1924)
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Rhynchonellata
- Orthida
- Rhipidomellidae
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Dalejina brestica
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Rhynchonellata
- Orthida
- Dalmanellidae
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Isorthis ovalis
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Ostracoda
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Ostracoda indet.
Latreille 1802
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Trilobita
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Trilobita indet.
Walch 1771
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| see common names | ||||||||||
Geography
| Country: | Lithuania |
| Coordinates: | 55.3° North, 22.3° East (view map) |
| Paleocoordinates: | 15.1° South, 0.8° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | local area |
Time
| Period: | Silurian | Epoch: | Pridoli |
| 10 m.y. bin: | Silurian 2 | *Epoch: | Late/Upper Pridoli |
| Key time interval: | Pridoli | ||
| Age range of interval: | 423.00000 - 419.20000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Jura |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | gray,green marl |
| Secondary lithology: | "limestone" |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: "Occurs in greenish-gray marls and biomorphic (organogenic-detrital) limestones of the third facies zone, which permits assignment to BA 3. Disarticulated values of Isorthis ovalis are abundant and articulated specimens rare, which suggests a normal level of turbulence (the specimens are commonly well preserved). | |
| Environment: | marine indet. |
Taphonomy
Collection methods and comments
| Collection excludes: | some macrofossils |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: Several collections of this formation combined. Author also gives data on absolute and relative abundance. | |
Metadata
| Database number: | 13762 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Foote | Research group: | marine invertebrate |
| Created: | 2002-04-24 09:30:57 | Last modified: | 2006-09-15 15:14:05 |
| Access level: | the public | Released: | 2002-04-24 09:30:57 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6146. | P. Musteikis and J. J. Paskevicius. 1999. Brachiopod communities of the Lithuanian Silurian. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 305-326 [M. Foote/M. Foote/P. Wagner] |