PBDB Collection

Longing Gap Radiolarians, K 20-1 (Jurassic of Antarctica)

Where: Antarctica (64.5° S, 59.0° W: paleocoordinates 54.9° S, 35.5° W)

• coordinate based on unpublished field data

• hand sample-level geographic resolution

When: Longing Member (Ameghino Formation), Early/Lower Tithonian (150.8 - 145.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: basinal (); lithified, concretionary, tuffaceous, black mudstone

• Anoxic conditions prevailed especially in the Longing Member; this is indicated by the often lacking bioturbation and rare horizons with benthonic fossils. In the Ameghino Member moderately intense bioturbation (Zoophycos, Chondrites, Planolites) and a consequent destruction of lamination indicate dysaerobic conditions. Doyle and Whitham (1991) attribute this environmental change to an uplift of the depositional environment above a permanent pyknocline. The submarine relief was very low and a simple hemipelagic sedimentation was dominant.

• Mudstone concretion with tuff layers

Size class: microfossils

Preservation: concretion

Collection methods: bulk, chemical, hydrochloric, sieve,

• Radiolarians only. Additional faunal elements are sponge spicules and very rare foraminifera.

Primary reference: W. Kiessling. 1999. Late Jurassic radiolarians from the Antarctic Peninsula. Micropaleontology 45(S1):1-96 [W. Kiessling/W. Kiessling]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 46962: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 27.01.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Protozoa
Spumellaria - Parvivaccidae	Acastea diaphorogona, Acaeniotyle parva Acastea diaphorogona Foreman 1973 radiolarian Author = (Foreman) Acaeniotyle parva Yang 1993 radiolarian Author = Yang
Spumellaria - Angulobracchiidae	Angulobracchia cf. biordinalis, Angulobracchia purisimaensis, Paronaella "sp. A", Paronaella "sp. B", Paronaella aff. pristidentata, Paronaella obesa, Paronaella aff. multifera, Paronaella bandyi, Paronaella coalescenda Angulobracchia cf. biordinalis Ozvoldova 1984 radiolarian Author = Ozvoldova Angulobracchia purisimaensis Pessagno 1977 radiolarian Author = (Pessagno) Paronaella "sp. A" Pessagno 1971 radiolarian Paronaella "sp. B" Pessagno 1971 radiolarian Paronaella aff. pristidentata Baumgartner 1980 radiolarian Author = Baumgartner Paronaella obesa Pessagno 1977 radiolarian Author = (Pessagno) Paronaella aff. multifera Yang 1993 radiolarian Author = Yang Paronaella bandyi Pessagno 1977 radiolarian Author = Pessagno Paronaella coalescenda Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Spumellaria - Emiluviidae	? Emiluvia "sp. A", Emiluvia lowercoonensis, Emiluvia chica, ? Emiluvia aff. pessagnoi, Emiluvia aff. parvinodosa ? Emiluvia "sp. A" Foreman 1973 radiolarian Emiluvia lowercoonensis Pessagno et al. 1993 radiolarian ssp. polaris, Author = Kiessling, n.ssp. Emiluvia chica Foreman 1973 radiolarian Author = Foreman ? Emiluvia aff. pessagnoi Foreman 1973 radiolarian Author = Foreman Emiluvia aff. parvinodosa Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Spumellaria - Orbiculiformidae	"Orbiculiforma teres" = Orbiculiformella teres, Orbiculiforma "sp. A", Orbiculiforma "sp. B", Orbiculiforma cf. iniqua, Orbiculiforma mclaughlini, Orbiculiforma cf. vacaensis, Spongostaurus "sp. B", Spongostaurus australis n. sp. "Orbiculiforma teres" = Orbiculiformella teres Hull 1997 radiolarian Author = Hull Orbiculiforma "sp. A" Pessagno 1973 radiolarian Orbiculiforma "sp. B" Pessagno 1973 radiolarian Orbiculiforma cf. iniqua Blome 1984 radiolarian Author = Blome Orbiculiforma mclaughlini Pessagno 1977 radiolarian Author = Pessagno Orbiculiforma cf. vacaensis Pessagno 1973 radiolarian Author = Pessagno Spongostaurus "sp. B" Haeckel 1882 radiolarian Spongostaurus australis n. sp. Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Spumellaria - Praeconocaryommidae	Praeconocaryomma "sp. C", ? Praeconocaryomma "sp. G" Praeconocaryomma "sp. C" Pessagno 1976 radiolarian ? Praeconocaryomma "sp. G" Pessagno 1976 radiolarian
Spumellaria - Spongodiscidae	Spongotripus aff. pujanai, Teichertus hypnoticus, Stylospongia aff. longispina, Spongodiscus "sp. A", Spongodiscus "sp. B" Spongotripus aff. pujanai Kiessling 1999 radiolarian Teichertus hypnoticus Kiessling 1999 radiolarian Author = Kiessling, n.sp. Stylospongia aff. longispina radiolarian Author = (Rüst) Spongodiscus "sp. A" Ehrenberg 1854 radiolarian Spongodiscus "sp. B" Ehrenberg 1854 radiolarian
Spumellaria -	Plegmosphaera "sp. A", Plegmosphaera "sp. D" Plegmosphaera "sp. A" radiolarian Plegmosphaera "sp. D" radiolarian
Spumellaria - Pseudoaulophacidae	? Alievium "sp. C" ? Alievium "sp. C" Pessagno 1972 radiolarian
Spumellaria - Pyramispongiidae	? Pyramispongia "sp. A" ? Pyramispongia "sp. A" Pessagno 1973 radiolarian
Spumellaria - Patulibracchiidae	Homoeoparonaella elegans, Homoeoparonaella aff. gigantea Homoeoparonaella elegans Pessagno 1977 radiolarian s.s., Author = (Pessagno) and ssp. yangi, Author = Kiessling, n.ssp. Homoeoparonaella aff. gigantea Baumgartner 1980 radiolarian Author = Baumgartner [entered as Homoeoparonaella giganthea]
Spumellaria - Pantanelliidae	Pantanellium ranchitoense, Pantanellium formosum, Pantanellium whalenae, Pantanellium meraceibaense, Pantanellium quintachillaense, Pantanellium cantuchapai, Pantanellium rarum, Gorgansium aff. morganense, Gorgansium steigeri, "Cantalum" "sp. A", Protovallupus excellens, Protovallupus difficilis, Vallupus hopsoni Pantanellium ranchitoense Pessagno and MacLeod 1987 radiolarian Author = Pessagno and MacLeod Pantanellium formosum Yang 1993 radiolarian Author = Pessagno Pantanellium whalenae Pessagno and MacLeod 1987 radiolarian Author = Pessagno and MacLeod Pantanellium meraceibaense Pessagno and MacLeod 1987 radiolarian Author = Pessagno and MacLeod Pantanellium quintachillaense Pessagno and MacLeod 1987 radiolarian Author = Pessagno and MacLeod Pantanellium cantuchapai Pessagno and MacLeod 1987 radiolarian Author = Pessagno and MacLeod Pantanellium rarum Hull 1997 radiolarian Author = Hull Gorgansium aff. morganense Pessagno and Blome 1980 radiolarian Author = Pessagno and Blome Gorgansium steigeri Kiessling 1999 radiolarian Author = Kiessling, n.sp. "Cantalum" "sp. A" Pessagno et al. 1979 radiolarian Protovallupus excellens Yang and Pessagno 1989 radiolarian Author = Yang and Pessagno Protovallupus difficilis Kiessling 1999 radiolarian Author = Kiessling, n.sp. Vallupus hopsoni Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome
Spumellaria - Tritrabidae	Neoparonaella delicata Neoparonaella delicata Yang 1993 radiolarian Author = Yang
Spumellaria -	Spongiomma "sp. B", Spongiomma "sp. D", Spongiomma "sp. E" Spongiomma "sp. B" Haeckel 1887 radiolarian Spongiomma "sp. D" Haeckel 1887 radiolarian Spongiomma "sp. E" Haeckel 1887 radiolarian
Spumellaria - Hagiastridae	? Higumastra "sp. D", Higumastra devilsgapensis, Crucella magna, Crucella mexicana ? Higumastra "sp. D" Baumgartner 1980 radiolarian Higumastra devilsgapensis Pessagno et al. 1993 radiolarian Author = Pessagno, Blome and Hull Crucella magna Blome 1984 radiolarian Author = (Blome) Crucella mexicana Yang 1993 radiolarian Author = Yang
Spumellaria - Archaeospongoprunidae	Archaeospongoprunum aff. bipartitum Archaeospongoprunum aff. bipartitum Pessagno 1973 radiolarian Author = Pessagno
Spumellaria - Stylosphaeridae	Spongostylus "sp. B" Spongostylus "sp. B" Haeckel 1881 radiolarian
Spumellaria -	Pseudoacanthosphaera "sp. A" Pseudoacanthosphaera "sp. A" O'Dogherty 1994 radiolarian
Actinommacea - Xiphostylidae	Tripocyclia crassa n. sp., Suna "sp. A", Suna echiodes, Archaeocenosphaera cf. laseekensis, Triactoma tithonianum Tripocyclia crassa n. sp. Kiessling 1999 radiolarian Author = Kiessling, n.sp. Suna "sp. A" Wu 1986 radiolarian Suna echiodes Foreman 1973 radiolarian ssp. concava, Author = Kiessling, n.ssp. Archaeocenosphaera cf. laseekensis Pessagno et al. 1989 radiolarian Author = Pessagno and Yang Triactoma tithonianum Rüst 1885 radiolarian Author = Rüst
Nassellaria - Tripedurnulidae	? Tridentocyrtis "sp. A", Pseudopoulpus "sp. B", Pseudopoulpus spinosus ? Tridentocyrtis "sp. A" Steiger and Steiger 1994 radiolarian Pseudopoulpus "sp. B" Takemura 1986 radiolarian Pseudopoulpus spinosus Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Nassellaria - Williriedellidae	? Tricolocapsa aff. campana, Williriedellum frequens, Zhamoidellum "sp. A", Zhamoidellum "sp. B" ? Tricolocapsa aff. campana Kiessling 1995 radiolarian Author = Kiessling Williriedellum frequens Tan Sin Hok 1927 radiolarian Author = (Tan Sin Hok) Zhamoidellum "sp. A" Dumitrica 1970 radiolarian Zhamoidellum "sp. B" Dumitrica 1970 radiolarian
Nassellaria - Ultranaporidae	Napora durhami, Napora aff. pyramidalis, Napora pualensis, Napora pacifica n. sp. Napora durhami Pessagno 1977 radiolarian Author = (Pessagno) Napora aff. pyramidalis Baumgartner 1984 radiolarian Author = Baumgartner Napora pualensis Blome 1984 radiolarian Author = (Blome) Napora pacifica n. sp. Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Nassellaria - Pseudodictyomitridae	Loopus primitivus Loopus primitivus Matsuoka and Yao 1985 radiolarian Author = (Matsuoka and Yao)
Nassellaria - Eucyrtidiidae	? Stichocapsa "sp. A", Stichomitra "sp. B", Stichomitra "sp. C", Pseudoeucyrtis "sp. B", Pseudoeucyrtis "sp. C" ? Stichocapsa "sp. A" Haeckel 1881 radiolarian Stichomitra "sp. B" Cayeux 1897 radiolarian Stichomitra "sp. C" Cayeux 1897 radiolarian Pseudoeucyrtis "sp. B" Pessagno 1977 radiolarian Pseudoeucyrtis "sp. C" Pessagno 1977 radiolarian
Nassellaria - Eucyrtiidae	Tetracapsa horokanaiensis, Tetracapsa molengraaffi Tetracapsa horokanaiensis Kawabata 1988 radiolarian Author = (Kawabata) Tetracapsa molengraaffi Tan Sin Hok 1927 radiolarian Author = (Tan Sin Hok)
Nassellaria -	? Windalia "sp. E" ? Windalia "sp. E" Ellis 1993 radiolarian
Nassellaria - Parvicingulidae	Praeparvicingula "sp. A", Praeparvicingula "sp. B", Praeparvicingula vera, Praeparvicingula "rotunda", Praeparvicingula aff. rotunda, "Parvicingula aff. grantensis" = Praeparvicingula grantensis, Parvicingula "sp. E", Parvicingula cf. blowi, Parvicingula cf. elegans, Parvicingula colemani, Parvicingula aff. colemani, Parvicingula turrita, Parvicingula aff. turrita, Parvicingula judae, Parvicingula aff. excelsa, Parvicingula cf. thomesensis, Tethysetta boesii, Caneta hsui Praeparvicingula "sp. A" Pessagno et al. 1993 radiolarian Praeparvicingula "sp. B" Pessagno et al. 1993 radiolarian Praeparvicingula vera Pessagno and Whalen 1982 radiolarian Author = (Pessagno and Whalen) Praeparvicingula "rotunda" Hull 1995 radiolarian Author = Hull Praeparvicingula aff. rotunda Hull 1995 radiolarian Author = Hull "Parvicingula aff. grantensis" = Praeparvicingula grantensis Pessagno and Whalen 1982 radiolarian Author = (Pessagno and Whalen) Parvicingula "sp. E" Pessagno 1977 radiolarian Parvicingula cf. blowi Pessagno 1977 radiolarian Author = Pessagno Parvicingula cf. elegans Pessagno and Whalen 1982 radiolarian Author = Pessagno and Whalen Parvicingula colemani Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome Parvicingula aff. colemani Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome Parvicingula turrita Rüst 1898 radiolarian Author = (Rüst) Parvicingula aff. turrita Rüst 1898 radiolarian Author = (Rüst) Parvicingula judae Kiessling 1999 radiolarian Author = Kiessling, n.sp. Parvicingula aff. excelsa Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome Parvicingula cf. thomesensis Pessagno 1977 radiolarian Author = Pessagno Tethysetta boesii Parona 1890 radiolarian Author = (Parona) Caneta hsui Pessagno 1977 radiolarian Author = (Pessagno)
Nassellaria - Syringocapsidae	Podocapsa "amphitreptera", Podocapsa amphitreptera, Podobursa aff. tricola, Podobursa aff. triacantha Podocapsa "amphitreptera" Foreman 1973 radiolarian Author = Foreman Podocapsa amphitreptera Foreman 1973 radiolarian ssp. foremanae, Author = Yang Podobursa aff. tricola Foreman 1973 radiolarian Author = Foreman Podobursa aff. triacantha Fischli 1916 radiolarian Author = (Fischli)
Nassellaria - Bagotidae	Droltus aff. laseekensis Droltus aff. laseekensis Pessagno and Whalen 1982 radiolarian Author = Pessagno and Whalen
Nassellaria - Hsuidae	Hsuum "sp. A", Hsuum cf. cuestaense, Hsuum mclaughlini, Hsuum tamanense Hsuum "sp. A" Pessagno 1977 radiolarian Hsuum cf. cuestaense Pessagno 1977 radiolarian Author = Pessagno Hsuum mclaughlini Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome Hsuum tamanense Yang 1993 radiolarian Author = Yang
Entactinaria - Eptingiidae	Perispyridium trifolium, Perispyridium serratum Perispyridium trifolium Kiessling 1999 radiolarian Author = Kiessling, n.sp. Perispyridium serratum Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Entactinaria - Centrocubidae	? Octodendron superfragilis, ? Octodendron cf. superfragilis ? Octodendron superfragilis Kiessling 1999 radiolarian Author = Kiessling, n.sp. ? Octodendron cf. superfragilis Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Entactinaria - Saturnalidae	Acanthocircus cf. minimus, Acanthocircus yaoi, Acanthocircus dumitricai Acanthocircus cf. minimus Squinabol 1914 radiolarian Author = (Squinabol) Acanthocircus yaoi Yang 1993 radiolarian Author = Yang Acanthocircus dumitricai Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Entactinaria - Hexastylidae	? Hexastylus grahamensis ? Hexastylus grahamensis Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Radiolaria - Actinommidae	Actinomma "sp. A", Actinomma "sp. B", Actinomma interessanta, Actinomma frigida, Actinomma longinggapensis, Actinomma verwirra, Acanthosphaera "sp. B" Actinomma "sp. A" Haeckel 1862 radiolarian Actinomma "sp. B" Haeckel 1862 radiolarian Actinomma interessanta Kiessling 1999 radiolarian Author = Kiessling, n.sp. Actinomma frigida Kiessling 1999 radiolarian Author = Kiessling, n.sp. Actinomma longinggapensis Kiessling 1999 radiolarian Author = Kiessling, n.sp. Actinomma verwirra Kiessling 1999 radiolarian Author = Kiessling, n.sp. Acanthosphaera "sp. B" Ehrenberg 1859 radiolarian