Aulacodiscus

via iDigBio · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

Sits inside

AulacodiscaceaePBDB

Diet

"photoautotroph"PBDB, for Bacillariophyceae

Environment

marine,brackish,freshwaterPBDB, for Bacillariophyceae

• Cambrianunder 1%
• Late Cretaceous54%
• Paleocene8%
• Eoceneunder 1%
• Miocene14%
• Pliocene8%
• Pleistocene14%

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Where Aulacodiscus and its relatives were recorded in the Late Cretaceous. Draw the map

• Stephanopyxis80 sites
• Stephanopyxis turris76 sites
• Trinacria76 sites
• Paralia sulcata65 sites
• Stellarima62 sites
• Hemiaulus49 sites
• Pterotheca44 sites
• Actinoptychus39 sites
• Coscinodiscus37 sites
• Costopyxis34 sites
• Thalassiosiropsis34 sites
• Endictya33 sites
• Hemiaulus polymorphus33 sites
• Pseudopyxilla32 sites
• Actinocyclus31 sites
• Actinocyclus ingens31 sites
• Goniothecium31 sites
• Rhizosolenia31 sites
• Stephanopyxis simonseni31 sites
• Proboscia29 sites
• Thalassiosira28 sites
• Cortinocornus rossicus27 sites
• Triceratium27 sites
• Eucampia26 sites

The Paleobiology Database records 105 sites for Aulacodiscus, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

• Upper Cretaceous diatom biostratigraphy of the Arctic archipelago and northern continental margin, CanadaTapia and Harwood, 2002 · Micropaleontology · journal article56
• Upper Cretaceous and lower Paleocene diatom and silicoflagellate biostratigraphy of Seymour Island, eastern Antarctic PeninsulaHarwood, 1988 · Geological Society of America, Memoir · journal article22
• Site U1522Expedition 374 Scientists, 2019 · Proceedings of the International Ocean Discovery Program, Volume 374 · book chapter12
• Site U1524Expedition 374 Scientists, 2019 · Proceedings of the International Ocean Discovery Program, Volume 374 · book chapter10
• A Catalogue of Indian Fossil PlantsLakhanpal et al., 1976 · book10
• Site U1525Expedition 374 Scientists, 2019 · Proceedings of the International Ocean Discovery Program, Volume 374 · book chapter6
• Site U1523Expedition 374 Scientists, 2019 · Proceedings of the International Ocean Discovery Program, Volume 374 · book chapter5
• Site U1521Expedition 374 Scientists, 2019 · Proceedings of the International Ocean Discovery Program, Volume 374 · book chapter2
• First Finds of Eocene Diatoms in the Marine Paleogene Reference Section in the Il’pinskii Peninsula, Northeastern KamchatkaGladenkov, 2013 · Stratigraphy and Geological Correlation · journal article1
• Agnostidea of the Middle Cambrian of SwedenWestergård, 1946 · Sveriges Geologiska Undersökning · serial monograph1

Each of the 125 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

What may have been alongside itAulacodiscaceae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ehrenberg 1844