| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Djupedalia engeri
Taxonomy
Djupedalia engeri was named by Knutsen et al. (2012) [urn:lsid:zoobank.org:act:2B0CA8EB-B86B-4127-B573-E639DAE0B1AA]. Its type specimen is PMO 216.839, a partial skeleton (semiarticulated skeleton of a juvenile plesiosaur including a partial lower jaw and incomplete left quadrate and squamosal; a partial cervical and dorsal verteb), and it is a 3D body fossil. Its type locality is The northeastern slope of Janusfjellet (Djupedalia engeri type), which is in a Tithonian deep-water mudstone in the Agardhfjellet Formation of Norway. It is the type species of Djupedalia.
Synonymy list
| Year | Name and author |
|---|---|
| 2012 | Djupedalia engeri Knutsen et al. p. 215 figs. 2-15 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Djupedalia engeri Knutsen et al. 2012
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. M. Knutsen et al. 2012 | Plesiosauroid with the following autapomorphies and unique character combinations: Paroccipital process is 0.6 times the height of the exoccipital-opisthotic; exoccipital does not participate in the occipital condyle (in contrast to Kimmerosaurus); dorsal margin of the quadrate angles ventrally at 40 degrees (70 degrees in Spitrasaurus); pterygoid ramus of quadrate angles anteriorly at an angle of 55 degrees to a line drawn mediolaterally through the quadrate condyle (90 in Spitrasaurus, and 80 in Kimmerosaurus); lateral condyle of the quadrate is larger than the medial (reverse in Spitrasaurus); mandible is slender, containing approximately 25-30 teeth, and 1-2 pairs of symphyseal teeth (more than Tricleidus, less than Kimmerosaurus); atlas centrum participates in the rim of the atlantal cup; rib facets present on both atlas and axis; a minimum of 40 strongly biconcave cervical centra(54 estimated; more than in Cryptoclidus, Muraenosaurus and Colymbosaurus; less than in Spitrasaurus); anterior cervical centrum length and height approximately equal and less than width (approximately 0.7-0.8 times; unlike Kimmerosaurus and Muraenosaurus); dorsoventral height of cervical neural spines approximately equal to anteroposterior length; cervical neural spines posteriorly shifted so that their anterior margins are in line with the posterior margin of the base of the neural arch (located directly above the centrum in Kimmerosaurus and Colymbosaurus, significantly less posteriorly shifted in Cryptoclidus, Tricleidus, Muraenosaurus and Spitrasaurus); prezygapophyses fused along the midline (unfused in Cryptoclidus and Kimmerosaurus); postzygapophyseal facets not united along the midline (united in Spitrasaurus); postzygapophyses long, approximately equal to neural arch pedicel in anteroposterior length (shorter in Spitrasaurus, Cryptoclidus, and Muraenosaurus); cervical rib facets reniform and distinctly elevated above the ventral surface of the centrum (not elevated in Spitrasaurus); anterior cervical ribs with anteriorly projecting process at the distal end (absent in Spitrasaurus); height of dorsal neural spines approximately equal to height of neural canal (significantly taller in Cryptoclidus and Muraenosaurus); clavicles triangular in shape, with a straight anterior margin and concave posterior margin; anteroposterior width of interclavicle constricted in sagittal plane, compared to lateral rami, appearing “pinched”; femora are significantly larger than the humeri (reverse is true in Cryptoclidus and Muraenosaurus, subequal in size in Tricleidus and Spitrasaurus); both forelimbs and hindlimbs contain three elements in the epipodial row (two in Cryptoclidus and Muraenosaurus); epipodials anteroposteriorly broader than long. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||