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AnimaliaacceptedgenusAccepted
Albardonia

Albardonia

Ernst & Carrera, 2022

GBIF:196202589

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ABOUT

Descriptions(6)

COMPARISON
Ernst, Andrej, Carrera, Marcelo G. (2022): A cool-water bryozoan association from the La Pola Formation (Sandbian, Ordovician) of Argentine Precordillera. Geodiversitas 44 (20): 563-601, DOI: 10.5252/geodiversitas2022v44a20
urn: lsid: zoobank. org: act: CF 51 A 226 - FD 7 D- 4583 - B 045 - A 26177 B 30 FC 0
Ernst, Andrej, Carrera, Marcelo G. (2022): A cool-water bryozoan association from the La Pola Formation (Sandbian, Ordovician) of Argentine Precordillera. Geodiversitas 44 (20): 563-601, DOI: 10.5252/geodiversitas2022v44a20
DIAGNOSIS. — Ramose colony consisting of bifoliate fronds; encrusting sheets and secondary overgrowth common; autozooecia budding from mesotheca or epitheca, having angular shape of transverse section in endozone; autozooecial apertures angular with rounded corners; basal diaphragms common both in endozone and exozone, straight, or inclined; mesozooecia abundant, containing densely spaced diaphragms; aktinotostyles moderately large, abundant, originating in exozone, autozooecial walls laminated, integrated with dark median lining, showing reversal V-shaped lamination, without cingulum; maculae lacking.
Ernst, Andrej, Carrera, Marcelo G. (2022): A cool-water bryozoan association from the La Pola Formation (Sandbian, Ordovician) of Argentine Precordillera. Geodiversitas 44 (20): 563-601, DOI: 10.5252/geodiversitas2022v44a20
OCCURRENCE. — La Pola Formation, Upper Ordovician, Sandbian; Argentine Precordillera, western Argentina.
Ernst, Andrej, Carrera, Marcelo G. (2022): A cool-water bryozoan association from the La Pola Formation (Sandbian, Ordovician) of Argentine Precordillera. Geodiversitas 44 (20): 563-601, DOI: 10.5252/geodiversitas2022v44a20
ETYMOLOGY. — The new genus is named after Albardon village near which this genus was found.
Ernst, Andrej, Carrera, Marcelo G. (2022): A cool-water bryozoan association from the La Pola Formation (Sandbian, Ordovician) of Argentine Precordillera. Geodiversitas 44 (20): 563-601, DOI: 10.5252/geodiversitas2022v44a20
TYPE SPECIES. — Albardonia bifoliata n. sp., by present designation.
Ernst, Andrej, Carrera, Marcelo G. (2022): A cool-water bryozoan association from the La Pola Formation (Sandbian, Ordovician) of Argentine Precordillera. Geodiversitas 44 (20): 563-601, DOI: 10.5252/geodiversitas2022v44a20

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CLASSIFICATION

Taxonomic Classification Tree

AnimaliaBryozoaStenolaemataTrepostomatidaHeterotrypidaeAlbardonia

NOMENCLATURE

Synonyms(1)

LeioclemaUlrich, 1882
synonym

Occurrences with images

Source Information

A cool-water bryozoan association from the La Pola Formation (Sandbian, Ordovician) of Argentine Precordillera

checklist

This dataset contains the digitized treatments in Plazi based on the original journal article Ernst, Andrej, Carrera, Marcelo G. (2022): A cool-water bryozoan association from the La Pola Formation (Sandbian, Ordovician) of Argentine Precordillera. Geodiversitas 44 (20): 563-601, DOI: 10.5252/geodiversitas2022v44a20

ABSTRACT

Nineteen bryozoan species belonging to 18 genera are described from the La Pola Formation (Sandbian, Upper Ordovician) of Argentine Precordillera. Two trepostome genera each with one new species, respectively, are new: Albardonia bifoliata n. gen., n. sp. and Argentinopora robusta n. gen., n. sp. Five more species are new: a cystoporate Xenotrypa argentinensis n. sp., two trepostomes Heterotrypa enodis n. sp. and Nicholsonella spinigera n. sp., as well as two ptilodictyines Pseudostictoporella simplex n. sp. and Chazydictya ornata n. sp. The studied fauna shows some connection with Laurentia and Baltica on the species level and is similar to Siberia on the generic level. Furthermore, the generic composition of the La Pola fauna is similar to contemporary faunas of Las Aguaditas and Las Plantas formations of the Argentine Precordillera. The described fauna comes from mixed carbonate-siliciclastic deposits and represents a largely para-autochthonous association, with few autochthonous elements.The bryozoan growth forms indicate shallow shelf conditions. Bryozoans are associated with brachiopods, red algae, and echinoderms indicating heterozoan community typical for temperate to cool water environments with high primary production.

MOTS CLÉS

Ordovicien,

Sandbien,

environnement d’eau

froide,

Bryozoa,

paléogéographie,

paléoécologie,

genres nouveaux,

espèces nouvelles.

Ernst A, Carrera M G, admin (2022). A cool-water bryozoan association from the La Pola Formation (Sandbian, Ordovician) of Argentine Precordillera. Geodiversitas. Checklist dataset https://doi.org/10.15468/22hb3y accessed via GBIF.org on 2026-06-16.

CC0Published 6/16/2022View dataset
GBIF Usage Key
196202589
Dataset Key
f8f165f8-1b6b-4639-b139-c47e48485949
Origin
source
Backbone Key
11593880
Taxon ID
865C87FDFFADFFEF39ECFF024D8EFBE0.taxon
Last Crawled
6/9/2026
Last Interpreted
6/9/2026
View on GBIFSource Reference