Plagiaulacidae
Plagiaulacidae is a family of fossil mammals within the order Multituberculata. Remains are known from the Upper Jurassic and earliest Cretaceous of North America and Europe. They were among the more derived representatives of the informal suborder of "Plagiaulacida".

Kielan-Jaworowska, 2. & Nessov, L. A. · CC BY-SA 4.0 · via Wikipedia/Commons. 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.
On record
Recorded, not inferred- Sits inside
- PlagiaulacidaPBDB
- Diet
- herbivorePBDB, for Multituberculata
- Life habit
- arborealPBDB, for Multituberculata
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Mammalia
Time the record covers
At least 138 million years on record.
The record covers at least 201.4 Mya to 63.4 Mya. No occurrence read is dated outside 205.7 Mya to 60.9 Mya.
26 occurrences of Plagiaulacidae on record, most of them in the Early Cretaceous. 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
26 occurrencesThese 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
6 formations
- Lulworth Formation · Purbeck Group11
- Cedar Mountain Formation · Dakota Group5
- Morrison Formation5
- Dzunbain Formation1
- Lakota Formation · Inyan Kara Group1
- Exter Formation · Keuper Group1
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The named rock units Plagiaulacidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Plagiaulacidae and its relatives
Early CretaceousWhere Plagiaulacidae and its relatives were recorded in the Early Cretaceous.
Found in the same rock
280 taxa- Goniopholis8 sites
- Dorsetisaurus5 sites
- Theropoda5 sites
- Albanerpetontidae4 sites
- Amblotherium4 sites
- Ameribaatar zofiae4 sites
- Anura4 sites
- Bicuspidon numerosus4 sites
- Cedaromys bestia4 sites
- Cteniogenys antiquus4 sites
- Laolestes eminens4 sites
- Mammalia4 sites
- Ophiopsis4 sites
- Paracimexomys perplexus4 sites
- Paramacellodus4 sites
- Spalacotheridium noblei4 sites
- Bryceomys intermedius3 sites
- Cedaromys parvus3 sites
- Ceratodus3 sites
- Comotherium richi3 sites
- Corviconodon utahensis3 sites
- Dakotadens pertritus3 sites
- Dinochelys whitei3 sites
- Docodon victor3 sites
The Paleobiology Database records 18 sites for Plagiaulacidae, 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
12 references- Multituberculate mammals from near the Early-Late Cretaceous boundary, Cedar Mountain Formation, Utah5
- New Jurassic mammals from Como Bluff, Wyoming, and the interrelationships of non-tribosphenic Theria5
- Monograph of the fossil Mammalia of the Mesozoic formations4
- A Catalogue of the Mesozoic Mammalia in the Geological Department of the British Museum3
- A remarkable new vertebrate site in the Purbeck Limestone Formation on the Isle of Purbeck2
- A new multituberculate (Mammalia, Allotheria) from the Lulworth Formation (Cretaceous, Berriasian) of Dorset, England1
- Earliest Cretaceous mammals from the western United States1
- Multituberculate mammals from the Upper Jurassic Purbeck Limestone Formation of southern England1
- O geologicheskom stroenii i vozraste mestonakhozhdenii Khobur i Khuren-Dukh [On the geology and age of the Khobur and Khuren-Dukh localities]1
- Fossilium Catalogus1
- Notes on Paleocene and Lower Eocene mammal horizons of northern New Mexico and southern Colorado1
- Excursion to Swindon and Faringdon. June 5th (Whit-Monday), and following day1
Each of the 26 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.
Media and terms
Media content1
Picture of Plagiaulacidae
- Source
- Wikipedia/Commons
- Credit
- Kielan-Jaworowska, 2. & Nessov, L. A.
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPlagiaulacida through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Gill 1872