Alrota, Pteroceriano Formation, coral marls, Lisboa (Jurassic of Portugal)

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: shallow subtidal; lithified marl

• coral marls

Size class: macrofossils

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 68239: authorized by Wolfgang Kiessling, entered by Uta Merkel on 10.01.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Polychaeta
 Sabellida - Serpulidae
Serpulidae indet. Rafinesque 1835
Bivalvia
 Pectinida - Limidae
Plagiostoma sp. Sowerby 1814 file clam
 Pectinida - Anomiidae
Anomia sp. Linnaeus 1758 jingle
 Ostreida - Gryphaeidae
"Nanogyra nana" = Nanogyra (Nanogyra) nana Sowerby 1822 oyster
 Ostreida - Pteriidae
Pteroperna sp. Lycett 1850 pearl oyster
 Ostreida - Malleidae
Isognomon (Rostroperna) sp. Lightfoot 1786 oyster
 Mytilida - Mytilidae
Lithophaga sp. Röding 1798 mussel
 Trigoniida - Myophorelloidae
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Echinoidea
 Cidaroida -
Cidaroida indet. Claus 1880 pencil urchin
 Euechinoidea - Hemicidaridae
unclassified
  -
Porifera indet. Grant 1836
Anthozoa
 Scleractinia - Stylinidae
Stylina (Convexastrea) lobata Goldfuss 1826 stony coral
Stylina tubulosa Goldfuss 1829 stony coral
Stylina girodi Etallon 1864 stony coral
Stylina (Convexastrea) stellata Etallon 1862 stony coral
Stylina aff. deluci Milne-Edwards and Haime 1860 stony coral
Cyathophora bourgueti Defrance 1826 stony coral
Cyathophora cesaredensis Koby 1904 stony coral
 Scleractinia - Latomeandridae
Ovalastrea gemmata stony coral
Ovalastrea sp. d'Orbigny 1849 stony coral
Ovalastrea cf. plicata Koby 1904 stony coral
Ovalastrea cf. lobata Koby 1884 stony coral
"Thamnasteria pseudarachnoides" = Fungiastraea pseudarachnoides Becker 1875 stony coral
Microphyllia davidsoni Milne-Edwards and Haime 1851 stony coral
 Scleractinia - Microsolenidae
"Meandrophyllia (Latimaeandraraea) helvelloides" = Comoseris helvelloides Koby 1904 stony coral
Comoseris meandrinoides Michelin 1843 stony coral
Microsolena agariciformis Etallon 1859 stony coral
 Scleractinia - Dermosmiliidae
? Dermosmilia sp., ? Dermosmilia capitata, ""Calamophyllia" (Calamoseris) flabellum" = Calamophylliopsis flabellum, ""Calamophyllia" crassa" = Calamophylliopsis crassa
? Dermosmilia sp. Koby 1884 stony coral
? Dermosmilia capitata Koby 1904 stony coral
""Calamophyllia" (Calamoseris) flabellum" = Calamophylliopsis flabellum de Blainville 1830 stony coral
""Calamophyllia" crassa" = Calamophylliopsis crassa Koby 1884 stony coral
 Scleractinia - Calamophylliidae
 Scleractinia - Thamnasteriidae
Thamnasteria gracilis Münster 1826 stony coral
Thamnasteria lobata Goldfuss 1826 stony coral
 Scleractinia - Haplaraeidae
 Scleractinia - Solenocoeniidae
"Stylina (Convexastrea) sexradiata" = Solenocoenia sexradiata
"Stylina (Convexastrea) sexradiata" = Solenocoenia sexradiata Goldfuss 1826 stony coral
 Scleractinia - Amphiastreidae
Amphiastrea piriformis Gregory 1900 stony coral
 Scleractinia - Axosmiliidae
? Axosmilia (Blastosmilia) sp. Milne-Edwards and Haime 1848 stony coral
Axosmilia caudata Quenstedt 1881 stony coral
Axosmilia cf. corallina Etallon 1859 stony coral
Axosmilia carrapateirensis Koby 1904 stony coral
Axosmilia crassa Milaschewitsch 1876 stony coral
 Scleractinia - Actinastreidae
Actinastrea trochiformis Michelin 1843 stony coral
"Actinastrea ramulifera" = Stephanastrea ramulifera Etallon 1864 stony coral
 Scleractinia - Montlivaltiidae
Montlivaltia obconica Münster 1829 stony coral