Perfil Tres Lagos : Early/Lower Albian - Middle Albian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Ostracoda
- Palaeocopida
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Circulina informal sp.
Sepkoski 2002
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Polypodiopsida
- Schizaeales
- Anemiaceae
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Palaeomohria informal sp 1
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Archangelsky 2009 | |||||||||
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Palaeomohria informal Type 1
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Archangelsky 2009 | |||||||||
| Putative Palaeomohria spore type | ||||||||||
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Palaeomohria informal Type 2
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Archangelsky 2009 | |||||||||
| Putative Palaeomohria spore type | ||||||||||
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Palaeomohria informal Type 3
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Archangelsky 2009 | |||||||||
| Putative Palaeomohria spore type | ||||||||||
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Palaeomohria patagonica
Archangelsky 2009
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Archangelsky 2009 | |||||||||
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Polypodiopsida
- Schizaeales
- Schizaeaceae
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Cicatricosisporites cf. venustus
Deak 1963
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Polypodiopsida
- Marsileaceae
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Crybelosporites cf. berberioides
Burger 1976
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Crybelosporites stylosus
Dettmann 1963
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Polypodiopsida
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Biretisporites informal sp.
Delcourt et al. 1963
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Polypodiopsida
- Blechnaceae
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Leptolepidites verrucatus
Couper 1953
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Leptolepidites major
Couper 1953
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Coniferales
- Podocarpaceae
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Microcachrydites informal sp.
Cookson 1947
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Gamerroites volkheimeri
Archangelsky 1988
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Callialasporites trilobatus
(Balme 1957)
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| original and current combination Tsugaepollenites trilobatus | ||||||||||
| f. dampieri - f. trilobatus | ||||||||||
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Angiospermae
- Chloranthales
- Chloranthaceae
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Clavatipollenites informal sp.
Couper 1958
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Ginkgoopsida
- Ephedrales
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Ephedripites informal sp.
Bolkhovitina and Potonié 1958
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unclassified
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Schrankipollis informal sp.
Doyle et al. 1990
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Equisetopsida
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Foraminisporis wonthaggiensis
Dettmann 1963
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Equisetopsida
- Araucariaceae
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Balmeiopsis limbatus
(Balme 1957)
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| original and current combination Inaperturopollenites limbatus | ||||||||||
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Cyclusphaera radiata
Archangelsky 1983
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Equisetopsida
- Cheirolepidiaceae
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Classopollis informal sp.
Pflug 1953
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unclassified
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Interulobites triangularis
Paden et al. 1971
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Marchantiopsida
- Marchantiidae
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Triporoletes reticulatus
Playford 1971
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Marchantiopsida
- Sphaerocarpales
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Aequitriradites cf. superspinulosus
Archangelsky et al. 2008
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unclassified
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Staplinisporites caminus
Pocock 1962
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Lycopodiopsida
- Selaginellales
- Selaginellaceae
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Neoraistrickia informal sp.
Potonié 1956
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Lycopodiopsida
- Selaginellales
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Densoisporites corrugatus
Archangelsky and Gamerro 1965
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Lycopodiopsida
- Lycopodiales
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Retitriletes boqueroense
Archangelsky and Villar de Seoane 1998
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| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Santa Cruz |
| Coordinates: | 49.6° South, 71.5° West (view map) | ||
| Paleocoordinates: | 54.4° South, 42.5° West | ||
| Basis of coordinate: | stated in text | ||
| Altitude: | 325 meters | ||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Albian | 10 m.y. bin: | Cretaceous 4 |
| Key time interval: | Early/Lower Albian - Middle Albian | ||
| Age range of interval: | 113.00000 - 106.20000 m.y. ago |
Stratigraphy
| Formation: | Piedra Clavada |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | yellow lithified sandy sandstone |
| Secondary lithology: | black,gray lithified argillaceous "shale" |
| Includes fossils? | Y |
| Lithology description: The Piedra Clavada Formation is compose by yeloowish sandstones, dark-grey shales, heterolithic facies and scarce conglomerates and coquinas. | |
| Environment: | prodelta |
| Geology comments: It is suggested that the enviroment is a deltaic submerged zone in prodelta facies, delta front, interdistributary bays and interdistributary channels. | |
Taphonomy
| Modes of preservation: | body,original sporopollenin |
| Size of fossils: | microfossils |
| Preservation of anatomical detail: | excellent |
| Abundance in sediment: | common |
| Fragmentation: | none |
| Bioerosion: | none |
| Encrustation: | none |
| Temporal resolution: | time-averaged |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection excludes: | all microfossils,ichnofossils | ||
| Collection methods: | bulk,chemical,hydrochloric,hydroflouric,field collection | ||
| Minimum sieve size: | 0.010 | Maximum sieve size: | 0.037 |
| Reason for describing collection: | biostratigraphic analysis | ||
| Museum repositories: | MACN |
Metadata
| Database number: | 149746 | ||
| Authorizer: | C. Jaramillo | Enterer: | P. Santamarina |
| Modifier: | P. Santamarina | Research group: | micropaleontology,paleobotany |
| Created: | 2013-08-24 06:39:24 | Last modified: | 2013-08-27 09:00:39 |
| Access level: | group members | Released: | 2016-08-24 06:39:24 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 48004. | A. Archangelsky, S. Archangelsky, D. G. Poire and N. D. Canessa. 2008. Aptian Angiosperm Pollen from the Ticó Flora Patagonia, Argentina. Revista del Museo Argentino de Ciencias Naturales 10(2):185-198 [C. Jaramillo/P. Santamarina] |
Secondary references:
| 47967 | S. Archangelsky. 2009. Biogeographic implications of Albian Mohria-like spores (Family Anemiaceae) in SW Gondwana (Patagonia). Review of Palaeobotany and Palynology 157:301-308 [C. Jaramillo/P. Santamarina] |