Praecardium
Searched as Regina. The Paleobiology Database treats Praecardium as the accepted name.
No picture of Praecardium was found. Wikipedia and iDigBio were searched and had none. Wikidata has a picture filed under this name, but nothing tied it to Praecardium itself, so it was not used. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Praecardium, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PraecardiidaePBDB
- Diet
- suspension feederPBDB, for Pteriomorphia
- Life habit
- epifaunalPBDB, for Pteriomorphia
- Motility
- facultatively mobilePBDB, for Pteriomorphia
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 431 million years on record.
The record covers at least 431.2 Mya to 129 ka. No occurrence read is dated outside 433.5 Mya to 11.7 ka.
47 occurrences of Praecardium on record, most of them in the Silurian. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
47 occurrences- Silurian49%
- Devonian32%
- Miocene1%
- Pliocene3%
- Pleistocene15%
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.
Found in
17 formations
- Marcellus Formation7
- Pozary Formation6
- Fluminimaggiore Formation3
- Bermont Formation2
- Huixingshao Formation2
- Kingsdown Formation1
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The named rock units Praecardium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 15 occurrences have no formation on record, which is common for older literature.
Praecardium and its relatives
SilurianWhere Praecardium and its relatives were recorded in the Silurian.
Found in the same rock
334 taxa- Cardiolinka10 sites
- Bivalvia8 sites
- Ceratiocaris bohemica8 sites
- Scyphocrinites8 sites
- Actinopteria7 sites
- Dualina7 sites
- Pterinopecten7 sites
- Cephalopoda6 sites
- Corbuloceras6 sites
- Goniatitida6 sites
- Pterochaenia6 sites
- Acutiramus bohemicus5 sites
- Monograptus transgrediens5 sites
- Orthocycloceras5 sites
- Orthonychia elegans5 sites
- Parakionoceras originale5 sites
- Pygolfia5 sites
- Snoopyia5 sites
- Conularia4 sites
- Dualina comitans4 sites
- Joachymia4 sites
- Lunulacardium4 sites
- Spanila4 sites
- Boucia3 sites
The Paleobiology Database records 32 sites for Praecardium, 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.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
25 references- Quantitative Analysis of Paleocommunities in the Lower Part of the Hamilton Group near Cazenovia, New York7
- Silurian field excursions: Prague Basin (Barrandian), Bohemia5
- Bivalvia communities of Bohemian type from the Silurian and Lower Devonian carbonate facies4
- Polish Ludlow-Lower Devonian communities4
- Upper Silurian and lowermost Devonian Bivalvia of Bohemian type from south-western Sardinia3
- Correlation of the Silurian rocks of China3
- Pleistocene amphibians and reptiles from the Leisey Shell Pit, Hillsborough County, Florida2
- Herpetofaunas of the Big Springs and Hornet's Nest quarries (northeastern Nebraska, Pleistocene: Late Blancan)2
- An atypical fauna in the Lower Devonian Hunsrück Slate of Germany1
- North American Watersnakes: A Natural History1
- Two new carnivores from an unusual late Tertiary forest biota in eastern North America1
- Silurian to Lower Devonian communities of Sardinia1
Each of the 47 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. 13 further references are not listed. 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.
Media and terms
Media content1
No picture of Praecardium was found. Wikipedia and iDigBio were searched and had none.
Wikidata has a picture filed under this name, but nothing tied it to Praecardium itself, so it was not used.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Praecardium, or no answer at all. This entry cannot say which.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPraecardiidae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Barrande 1881