85-HN-13, Huanincocha (Triassic to of Peru)

Where: Peru (10.9° S, 75.9° W: paleocoordinates 20.9° S, 42.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Chambara Formation (Pucara Group), Alaunian to Alaunian (215.6 - 205.6 Ma)

• HN-13 yielded mid-late Norian conodonts (indeterminate Epigondolella fragment). Base of unit 15 of measured section.

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, dolomitic, ooidal, shelly/skeletal grainstone

• Thick-bedded, bioclastic dolomitic limestone characterized by planar and trough cross-bedded oolitic crinoidal and molluscan grainstone

Size class: macrofossils

Preservation: recrystallized, replaced with silica

Collected by B. Senowbari-Daryan, G. Stanley in 1985; reposited in the UMMP

Collection methods: chemical

Primary reference: B. Senowbari-Daryan. 1994. Mesozoic sponges of the Pucara Group, Peru. Palaeontographica Abteilung A 233:57-74 [W. Kiessling/B. Brenneis/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 36993: authorized by Wolfgang Kiessling, entered by Benjamin Brenneis on 23.02.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia indet. Linnaeus 1758 clam
 Cidaroida - Cidaridae
Triassicidaris peruviensis n. sp.2 Smith 1994 pencil urchin
 Euechinoidea - Triadocidaridae
Zardinechinus ? pulchellus2 Smith 1994 sea urchin
Zardinechinus regularis2 Smith 1994 sea urchin
Crinoidea indet. Miller 1821 Sea lily
 Spiriferinida - Spondylospiridae
Zugmayerella koerneri n. sp.1 Sandy 1994
 Rhynchonellida - Cyclothyrididae
 Scleractinia - Gablonzeriidae
Gablonzeria sp. Cuif 1976 stony coral
 Scleractinia - Reimaniphylliidae
Retiophyllia frechi3 Roniewicz 1989 stony coral
 Agelasida - Sebargasiidae
Amblysiphonella tubifera n. sp. Senowbari-Daryan 1994 demosponge
 Agelasida - Colospongiidae
Colospongia sp. Laube 1865 demosponge
 Calcaronea - Endostomatidae
"Corynella "sp. 1"" = Endostoma, "Corynella "sp. 2"" = Endostoma
"Corynella "sp. 1"" = Endostoma Roemer 1864 calcareous sponge
"Corynella "sp. 2"" = Endostoma Roemer 1864 calcareous sponge
 Calcaronea - Stellispongiidae
Peronidella "sp. 1", "Eusiphonella bronnii" = Pareudea bronnii
Peronidella "sp. 1" Hinde 1893 calcareous sponge
"Eusiphonella bronnii" = Pareudea bronnii Goldfuss 1829 calcareous sponge