Seymour Island 9b (Cretaceous of Antarctica)

Where: Seymour Island, Antarctica (64.3° S, 56.8° W: paleocoordinates 62.6° S, 67.3° W)

• small collection-level geographic resolution

When: Lopez de Bertodano Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; glauconitic, gray, silty sandstone

Primary reference: C. E. Macellari. 1988. Stratigraphy, sedimentology, and paleoecology of Upper Cretaceous/Paleocene shelf-deltaic sediments of Seymour Island. Geological Society of America-Memoir 169:25-53 [M. Patzkowsky/K. Layou/M. Uhen]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 3169: authorized by Mark Patzkowsky, entered by Karen Layou on 27.07.1999, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Echinoids indet., Labile larseni
Labile larseni
originally entered as "Lahilla larseni"
Anthozoa
  -
Anthozoa indet.
Anthozoa indet. Ehrenberg 1834
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
Reptilia
  -
Reptilia indet.
Reptilia indet. Laurenti 1768 reptile
Malacostraca
 Decapoda - Nephropidae
Hoploparia stokesi
Hoploparia stokesi Weller 1903 clawed lobster
Gastropoda
 Cerithioidea - Cerithiidae
Cerithium sp.
Cerithium sp. Bruguière 1789 cerith snail
 Sorbeoconcha - Naticidae
Eunaticina arctowskiana
 Sorbeoconcha - Aporrhaidae
"Perissoptera nordenskjoldi" = Struthiochenopus nordenskjoldi
"Perissoptera nordenskjoldi" = Struthiochenopus nordenskjoldi Wilckens 1910 snail
 Neogastropoda - Fasciolariidae
Taioma charcotianus, Cryptorhytis philippiana
 Sorbeoconcha - Cassidae
"Cassidaria mirabilis" = Galeodea
"Cassidaria mirabilis" = Galeodea snail
 Seguenzioidea - Eucyclidae
Amberleya spinigera
Cephalopoda
 Nautilida - Nautilidae
"Eutrephoceras simile" = Eutrephoceras dorbignyanum
"Eutrephoceras simile" = Eutrephoceras dorbignyanum Forbes 1846
 Ammonitida - Diplomoceratidae
"Diplomoceras lambi" = Diplomoceras cylindraceum
"Diplomoceras lambi" = Diplomoceras cylindraceum Defrance 1816 ammonite
 Ammonitida - Pachydiscidae
Pachydiscus ultimus, Pachydiscus riccardi
Pachydiscus ultimus Macellari 1986 ammonite
Pachydiscus riccardi Macellari 1986 ammonite
 Ammonitida - Desmoceratidae
Kitchinites sp.
Kitchinites sp. Spath 1922 ammonite
 Ammonitida - Kossmaticeratidae
Maorites densicostatus, Grossouvrites joharae
Maorites densicostatus Kilian and Reboul 1909 ammonite
Grossouvrites joharae Salazar et al. 2010 ammonite
 Ammonitida - Tetragonitidae
"Zealandites varuna" = Zelandites varuna, "Anagaudryceras seymouriense" = Gaudryceras seymouriense, Pseudophyllites loryi
"Zealandites varuna" = Zelandites varuna Forbes 1846 ammonite
originally entered as "Zelandites varuna"
"Anagaudryceras seymouriense" = Gaudryceras seymouriense Macellari 1986 ammonite
Pseudophyllites loryi Kilian and Reboul 1909 ammonite
Bivalvia
 Ostreida - Pinnidae
Pinna anderssoni
 Ostreida - Malleidae
Pulvinites antarctica
 Ostreida - Gryphaeidae
"cf. Pycnodonte vesiculosa" = Pycnodonte (Phygraea) vesicularis vesiculosa
"cf. Pycnodonte vesiculosa" = Pycnodonte (Phygraea) vesicularis vesiculosa Sowerby 1822 oyster
originally entered as "Pycnodonte cf. vesiculosa"
 Pectinida - Limidae
Acesta sp. n. sp., Seymourtula antarctica
Acesta sp. n. sp. Adams and Adams 1858 file clam
originally entered as "Acesta n. sp."
Seymourtula antarctica Wilckens 1910 file clam
 Arcida - Cucullaeidae
Cucullaea antarctica
Cucullaea antarctica Wilckens 1907 clam
 Trigoniida - Myophorelloidae
Laevitrigonia regina
 Cardiida - Veneridae
Cyclorisma sp. n. sp.
Cyclorisma sp. n. sp. Dall 1902 venus clam
originally entered as "Cyclorisma n. sp."
 Hiatellida - Hiatellidae
Panopea clausa
Panopea clausa Wilckens 1910 clam
 Pholadomyida - Pholadomyidae
Goniomya hyriliformis
Sedentaria
 Sabellida - Serpulidae
Ditrupa sp., Rotularia sp., Rotularia shackletoni
Ditrupa sp. Berkeley 1835