PBDB Collection

ACM Kachaike: Aptian - Albian, Argentina

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Lycopodiopsida - Selaginellales

	Ceratosporites equalis Cookson and Dettmann 1958	Archangelsky and Llorens 2005

	Densoisporites corrugatus Archangelsky and Gamerro 1965

	Densoisporites velatus Dettmann 1963
Lycopodiopsida - Lycopodiales

	Retitriletes austroclavatidites Döring et al. 1963	Archangelsky and Llorens 2005

	Retitriletes baqueroense Archangelsky and Villar de Seoane 1998	Archangelsky and Llorens 2005
Angiospermae - Buxales

	Polypodiidites sp. Potonié 1966	Archangelsky and Llorens 2005
Angiospermae

	Monosulcites sp. Cookson and Couper 1953	Archangelsky and Llorens 2009
Coniferales - Podocarpaceae

	Gamerroites volkheimeri Archangelsky 1988	Archangelsky and Llorens 2009

	Microcachryidites sp. Cookson 1947	Archangelsky and Llorens 2009

	Microcachryidites antarcticus Couper 1953	Archangelsky and Llorens 2009

	Callialasporites trilobatus (Balme 1957)	Archangelsky and Llorens 2009
	original and current combination Tsugaepollenites trilobatus
	Callialasporites trilobatus forma trilobatus

	Podocarpidites ellipticus Cookson 1947	Archangelsky and Llorens 2009

	Podocarpidites auriculatus Archangelsky and Villar de Seoane 2005	Archangelsky and Llorens 2009
Equisetopsida

	Foraminisporis dailyi Dettmann 1963

	Foraminisporis asymmetricus Dettmann 1963	Archangelsky and Llorens 2005
Equisetopsida - Cheirolepidiaceae

	Classopollis intrareticulatus Volkheimer 1972	Archangelsky and Llorens 2009

	Classopollis classoides Pflug 1953	Archangelsky and Llorens 2009

	Classopollis simplex Reiser and Williams 1969	Archangelsky and Llorens 2009
Equisetopsida - Araucariaceae

	Balmeiopsis limbatus (Balme 1957)	Archangelsky and Llorens 2009
	original and current combination Inaperturopollenites limbatus

	Cyclusphaera cf. radiata Archangelsky 1983	Archangelsky and Llorens 2009

	Cyclusphaera psilata Volkheimer and Sepulveda 1976	Archangelsky and Llorens 2009

	Araucariacites australis Cookson 1947	Archangelsky and Llorens 2009
Equisetopsida - Cupressales

	Inaperturopollenites sp. Potonié 1966	Archangelsky and Llorens 2009
unclassified

	Cycadopites nitidus de Jersey 1964	Archangelsky and Llorens 2009
Ginkgoopsida - Caytoniales

	Vitreisporites pallidus Nilsson 1958	Archangelsky and Llorens 2009
Ginkgoopsida - Ephedrales

	Ephedripites notensis Cookson 1957	Archangelsky and Llorens 2009
unclassified

	Concavissimisporites verrucosus Delcourt and Sprumont 1955	Archangelsky and Llorens 2005

	Staplinisporites caminus Pocock 1962	Archangelsky and Llorens 2005

	Taurocusporites segmentatus Stover 1962
Marchantiopsida - Marchantiidae

	Triporoletes reticulatus Playford 1971	Archangelsky and Llorens 2005
Marchantiopsida - Sphaerocarpales

	Aequitriradites baculatus Döring 1964

	Aequitriradites spinulosus (Cookson and Dettmann 1958)
	original and current combination Cirratriradites spinulosus
Polypodiopsida - Blechnaceae

	Leptolepidites macroverrucatus Schulz 1967	Archangelsky and Llorens 2005
Polypodiopsida - Polypodiales - Pteridaceae

	Contignisporites cooksoniae Dettmann 1963

	Contignisporites burgerii (Filatoff and Price 1988)
	original and current combination Contignisporites burgeri

	Contignisporites glebulentus Dettmann 1963
Polypodiopsida - Gleicheniales - Matoniaceae

	Dictyophyllidites sp. Couper 1958
Polypodiopsida - Schizaeales

	Appendicisporites informal sp. 1 Weyland and Greifeld 1953	Archangelsky and Llorens 2005

	Appendicisporites informal sp. 2 Weyland and Greifeld 1953	Archangelsky and Llorens 2005

	Appendicisporites cf. giganticus Groot and Groot 1962	Archangelsky and Llorens 2005

	Appendicisporites cf. potomacensis Brenner 1963	Archangelsky and Llorens 2005
Polypodiopsida - Schizaeales - Schizaeaceae

	Klukisporites cf. labiatus Baldoni and Archangelsky 1983	Archangelsky and Llorens 2005

	Klukisporites variegatus Couper 1958	Archangelsky and Llorens 2005

	Cicatricosisporites sp. Potonie and Gelletich 1933	Archangelsky and Llorens 2005

	Cicatricosisporites hughesi Dettmann 1963	Archangelsky and Llorens 2005

	Cicatricosisporites australiensis Potonié 1956	Archangelsky and Llorens 2005
Polypodiopsida - Schizaeales

	Nodosisporites crenimurus Davies 1986	Archangelsky and Llorens 2005

	Nodosisporites macrobaculatus n. sp. Archangelsky and Llorens 2005	Archangelsky and Llorens 2005
Polypodiopsida - Marsileaceae

	Crybelosporites cf. punctatus Dettmann 1963	Archangelsky and Llorens 2005

	Crybelosporites australis n. sp. Archangelsky and Llorens 2005	Archangelsky and Llorens 2005
Polypodiopsida - Polypodiaceae

	Laevigatosporites sp. Ibrahim 1933	Archangelsky and Llorens 2005
Polypodiopsida - Gleicheniaceae

	Ornamentifera cf. echinata Bolkhovitina 1966	Archangelsky and Llorens 2005

	Gleicheniidites senonicus Ross 1949	Archangelsky and Llorens 2005

	Gleicheniidites serratus n. sp. Archangelsky and Llorens 2005	Archangelsky and Llorens 2005
Polypodiopsida - Osmundaceae

	Baculatisporites comaumensis Potonie 1953	Archangelsky and Llorens 2005

	Baculatisporites kachaikensis n. sp. Archangelsky and Llorens 2005	Archangelsky and Llorens 2005
Polypodiopsida - Dicksoniaceae

	Cyatheacidites sp. Potonié 1956

	Cyatheacidites tectifera Archangelsky and Gamerro 1965
unclassified

	Concavisporites cf. semiangulatus Menéndez 1963

	Foveogleicheniidites confossus Burger 1975	Archangelsky and Llorens 2005

	Microfoveolatosporis sp. Krutzsch 1959	Archangelsky and Llorens 2005

	Pilosisporites verus Delcourt and Sprumont 1955	Archangelsky and Llorens 2005

	Pilosisporites trichopapillosus Delcourt and Sprumont 1955	Archangelsky and Llorens 2005
Pteridopsida

	Leiotriletes cf. regularis Krutzsch 1959

	Deltoidospora australis Pocock 1970

	Deltoidospora inconspicua Martin 1973

	Osmundacidites cf. wellmanii Couper 1953	Archangelsky and Llorens 2005

	Todisporites minor Couper 1953

	Cyathidites sp. Couper 1953

	Cyathidites patagonicus Archangelsky 1972

	Cyathidites minor Couper 1953

	Cyathidites cf. punctatus Delcourt et al. 1963
see common names

Geography

Country:	Argentina	State/province:	Santa Cruz
Coordinates:	49.0° South, 72.0° West (view map)
Paleocoordinates:	52.4° South, 41.0° West
Basis of coordinate:	estimated from map
Geographic resolution:	local area

Time

Period:	Cretaceous	Epoch:	Early/Lower Cretaceous

Key time interval:	Aptian - Albian
Age range of interval:	121.40000 - 100.50000 m.y. ago

Stratigraphy

Formation:	Kachaike
Stratigraphy comments: It is therefore considered important, complete the taxonomic study of this paleoflora to assign to this location (ACM) narrower age.

Lithology and environment

Primary lithology:	lithified sandy sandstone
Secondary lithology:	lithified "shale"
Includes fossils?	Y
Lithology description: Is composed of a succession of interleaved psamitas and shales of deltaic environment, which towards the top become continental. The lithology is described in a reference unpublished: -Rebasa, M. 1982. [ Análisis estratigráfico y paleoambiental de la Formación Kachaike, aflorante en la barranca epónima, provincia de Santa Cruz. Tesis de Licenciatura. Facultad de Ciencias Exactas y Naturales, UBA. 60 pp. Inédito.] -Gamerro, J.C. 1982. [Informe palinológico del perfil arroyo Caballo Muerto, Santa Cruz. Yacimientos Petrolíferos Fiscales, Buenos Aires (inédito)].
Environment:	delta plain

Taphonomy

Modes of preservation:	soft parts,original sporopollenin
Size of fossils:	microfossils
Feeding/predation traces:	external foliage feeding

Collection methods and comments

Collection methods:	field collection
Reason for describing collection:	paleoecologic analysis
Collection method comments: The materials of spores and pollen grains are storted at the Palynological Collection Paleobotany Division of the Argentine Museum of Natural Sciences "B. Rivadavia" (BA Pb Pal.). The material of spores and pollen grains studied was originally contributed by Fiscal Oilfields (Gamerro, J.C. 1982. [Informe palinológico del perfil arroyo Caballo Muerto, Santa Cruz. Yacimientos Petrolíferos Fiscales, Buenos Aires (inédito)]).

Metadata

Database number:	150615
Authorizer:	C. Jaramillo	Enterer:	J. Moreno
Modifier:	J. Moreno	Research group:	paleobotany
Created:	2013-09-12 01:00:01	Last modified:	2013-09-11 10:10:35
Access level:	authorizer only	Released:	2016-09-12 01:00:01
Creative Commons license:	CC BY

Reference information

Primary reference:

48162.

A. Archangelsky and M. Llorens. 2003. Palinología de la Formación kachaike, Cretácico Inferior de la Cuenca Austral, provincia de Santa Cruz. I-Esporas lisas y cinguladas. Ameghiniana 40(1):71-80 [C. Jaramillo/J. Moreno/J. Moreno]

Secondary references:

48165		A. Archangelsky and M. Llorens. 2005. Palinología de la Formación Kachaike, Cretácico Inferior de la Cuenca Austral, provincia de Santa Cruz. II. Esporas. Ameghiniana 42(2):311-328 [C. Jaramillo/J. Moreno]
48166		A. Archangelsky and M. Llorens. 2009. Palinología de la Formación Kachaike, Cretácico Inferior de la Cuenca Austral, provincia de Santa Cruz: Granos de polen de Gimnospermas. Ameghiniana 46(2):225-234 [C. Jaramillo/J. Moreno]