Alrota, Pteroceriano Formation, coral patch reefs, Lisboa (Jurassic of Portugal)

Also known as Reef 2750

Where: Portugal (38.9° N, 9.1° W: paleocoordinates 33.2° N, 1.0° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: upper Member (Pteroceriano Formation), Tithonian (152.1 - 145.0 Ma)

• "Alrota Limestones"

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified bafflestone and lithified reef rocks

• lagoonal patch reefs within shallow siliciclastic-carbonate setting
• coral bafflestones, float/boundstones and framestones

Size classes: macrofossils, microfossils

Primary reference: R. R. Leinfelder. 1986. Facies, stratigraphy and paleogeographic analysis of Upper? Kimmeridgian to Upper Portlandian sediments in the environs of Arruda dos Vinhos, Estremadura, Portugal. Muenchner Geowissenschaftliche Abhandlungen, A 7:1-215 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 68238: authorized by Wolfgang Kiessling, entered by Uta Merkel on 10.01.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
? Likaniella bartheli
Lithocodium
  -
Lithocodium sp.
Lithocodium sp. Elliott 1956
Cyanophyceae
  - Garwoodiaceae
Bacinella irregularis
Bacinella irregularis Radoicic 1959
  -
Cayeuxia kurdistanensis
Rhodophyceae
  - Solenoporaceae
Marinella lugeoni, Solenopora cayeuxiformis, Solenopora sp.
Marinella lugeoni Pfender 1939
Solenopora sp. Dybowski 1877
  - Gymnocodiaceae
Permocalculus sp.
Permocalculus sp. Elliott 1955
Chlorophyceae
 Dasycladales -
? Actinoporella podolithica
 Dasycladales - Dasycladaceae
Dasycladaceae indet., ? Macroporella nisi, ? Cylindroporella cf. arabica
Dasycladaceae indet. Kutzing 1843
Foraminifera
 Ammodiscoidea - Ammodiscidae
Glomospira sp.
Glomospira sp. Rzehak 1895
 Loftusiacea - Mesoendothyridae
? Mesoendothyra sp.
 Loftusiacea - Cyclamminidae
Everticyclammina virguliana, Pseudocyclammina ex gr. parvula
 Lituolacea - Mayncinidae
Freixialina planispiralis
 Lituolacea - Nautiloculinidae
Nautiloculina oolithica
Tubothalamea
 Miliolida - Miliolidae
Miliolidae indet.
Miliolidae indet. Ehrenberg 1839
 Miliolida - Nubeculariidae
Nubeculariidae indet.
Nodosariata
 Vaginulinida - Vaginulinidae
Lenticulina sp.
Lenticulina sp. Lamarck 1804
Foraminifera
 Spirillinina - Spirillinidae
Conicospirillina basilensis
 Lituolida - Ammobaculinidae
"Haplophragmium" sp.
Echinoidea
  -
Echinoidea indet.
Echinoidea indet. Leske 1778 sea urchin
 Euechinoidea - Hemicidaridae
Pseudocidaris lusitanicus
Polychaeta
 Sabellida - Serpulidae
Serpulidae indet.
Serpulidae indet. Rafinesque 1835
Gastropoda
 Heterostropha - Nerineidae
Nerineidae indet.
Nerineidae indet. Zittel 1873 snail
Bivalvia
  -
Bivalvia indet.
Bivalvia indet. Linnaeus 1758 clam
 Mytilida - Mytilidae
Lithophaga sp.
Lithophaga sp. Röding 1798 mussel
 Ostreida - Pteriidae
Pteroperna cf. pygmaea
Brachiopoda
  -
Brachiopoda indet.
Brachiopoda indet. Cuvier 1805
Bryozoa
  -
Bryozoa indet.
Bryozoa indet. Ehrenberg 1831
Anthozoa
 Scleractinia - Cyathophoridae
Cyathophora sp.
Cyathophora sp. Michelin 1843 stony coral
 Scleractinia - Actinastreidae
Actinastrea sp.
Actinastrea sp. d'Orbigny 1849 stony coral
 Scleractinia - Solenocoeniidae
"Stylina (Convexastrea) sexradiata" = Solenocoenia sexradiata
"Stylina (Convexastrea) sexradiata" = Solenocoenia sexradiata Goldfuss 1826 stony coral
 Scleractinia - Dermosmiliidae
Dermosmilia sp.
Dermosmilia sp. Koby 1884 stony coral
 Scleractinia - Calamophylliidae
"Calamophyllia" sp.
"Calamophyllia" sp. Blainville 1830 stony coral
 Scleractinia - Axosmiliidae
Axosmilia sp.
Axosmilia sp. Milne-Edwards and Haime 1848 stony coral
 Scleractinia - Amphiastreidae
Amphiastrea piriformis
Amphiastrea piriformis Gregory 1900 stony coral
Stromatoporoidea
 Stromatoporoidea -
Stromatoporoidea indet.
Stromatoporoidea indet. stromatoporoid sponge