Kalana lagerstätte
| Kalana lagerstätte | |
|---|---|
| Stratigraphic range: | |
| Type | Lagerstätte |
| Unit of | Nurmekund Formation |
| Lithology | |
| Primary | Limestone |
| Location | |
| Country | Estonia |
| Type section | |
| Named for | Kalana, Jõgeva County |
The Kalana lagerstätte is a lagerstätte from the early Silurian of Estonia, contained within the Nurmekund Formation. It contains a fairly diverse biota of algae and crinoids, alongside the earliest osteostracan known.[1]
Paleobiota
Color key
|
Notes Uncertain or tentative taxa are in small text; |
| Paleobiota | |||||
|---|---|---|---|---|---|
| Genus | Species | Higher taxon | Notes | Images | |
| Kalanaspis | K. delectabilis | Osteostraci | Earliest osteostracan known, preserved in an unusual carbonaceous mode of preservation[2][3] | ||
| Kalanacrinus | K. mastikae | Dimerocrinitidae (Camerata) | Resembles Cybelecrinus[4] | ||
| Oepikicrinus | O. perensae | Dimerocrinitidae (Camerata) | Fairly small dimerocrinitid[5] | ||
| Rozhnovicrinus | R. isakarae | Dendrocrinidae (Camerata) | Distinguished by an odd anal plate arrangement[5] | ||
| Tartucrinus | T. kalanaensis | Iocrinidae (Disparida) | Provisionally assigned to Iocrinidae due to a lack of preserved distinguishing morphology[4] | ||
| Clintonella | C. aprinis | Atrypinidae (Atrypida) | Known from across the Baltic region[6] | ||
| Palaeocymopolia |
|
Dasycladales | Resembles the modern Cymopolia[7] | ||
| Kalania |
|
Dasycladales | Unbranched with hairy tips[8] | ||
| Leveilleites |
|
Rhodophyta? | Also found in North America[9] | ||
References
- ^ Männik, Peep; Tinn, Oive; Loydell, David K.; Ainsaar, Leho (18 May 2016). "Age of the Kalana Lagerstätte, early Silurian, Estonia; pp. 105–114". Estonian Journal of Earth Sciences. 65 (2): 105–114. doi:10.3176/earth.2016.10.
- ^ Tinn, Oive; Lang, Liisa; Märss, Tiiu; Vahur, Signe; Kirsimäe, Kalle (30 May 2022). "A demineralized osteostracan fossil from the Silurian Kalana Lagerstätte of Estonia: revealing its internal anatomy and uncovering a unique type of fossilization". Lethaia. 55 (1): 1–13. doi:10.1111/let.12452.
- ^ Tinn, Oive; Märss, Tiiu (2 January 2018). "The earliest osteostracan Kalanaspis delectabilis gen. et sp. nov. from the mid-Aeronian (mid-Llandovery, lower Silurian) of Estonia". Journal of Vertebrate Paleontology. 38 (1) e1425212. doi:10.1080/02724634.2017.1425212.
- ^ a b Ausich, William I.; Wilson, Mark A.; Tinn, Oive (January 2020). "Kalana Lagerstätte crinoids: Early Silurian (Llandovery) of central Estonia". Journal of Paleontology. 94 (1): 131–144. doi:10.1017/jpa.2019.27.
- ^ a b Ausich, William I.; Wilson, Mark A.; Toom, Ursula (May 2020). "Early Silurian recovery of Baltica crinoids following the end-Ordovician extinctions (Llandovery, Estonia)". Journal of Paleontology. 94 (3): 521–530. doi:10.1017/jpa.2019.89.
- ^ Baarli, B. Gudveig (March 2022). "The new brachiopod genus Eiratrypa and the genus Clintonella from the Lower Silurian (Llandovery) of Baltica" (PDF). Norwegian Journal of Geology. doi:10.1785/njg102-1-3.
- ^ Mastik, Viirika; Tinn, Oive (March 2015). "New dasycladalean algal species from the Kalana Lagerstätte (Silurian, Estonia)". Journal of Paleontology. 89 (2): 262–268. doi:10.1017/jpa.2014.23.
- ^ Tinn, Oive; Mastik, Viirika; Ainsaar, Leho; Meidla, Tõnu (March 2015). "Kalania pusilla, an exceptionally preserved non-calcified alga from the lower Silurian (Aeronian, Llandovery) of Estonia". Palaeoworld. 24 (1–2): 207–214. doi:10.1016/j.palwor.2014.12.001.
- ^ Mastik, Viirika; Tinn, Oive (December 2017). "Leveilleites hartnageli Foerste, 1923 (Rhodophyta?) from the Ordovician of Laurentia and Silurian of Baltica: Redescription and designation of a neotype". Palaeoworld. 26 (4): 602–611. doi:10.1016/j.palwor.2017.04.002.