Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Cammackacetus hazenorum was named by Godfrey and Lambert (2023). Its type specimen is USNM PAL 639715, a partial skull (partial skull lacking the distal part of the rostrum, the supra- orbital processes, most of the squamosals, and the ear bones), and it is a 3D body fossil. Its type locality is Governor Run, Zone 24, which is in a Tortonian marine horizon in the St. Marys Formation of Maryland. It is the type species of Cammackacetus.
Synonymy list
Year | Name and author |
---|---|
2023 | Cammackacetus hazenorum Godfrey and Lambert p. 142 figs. FIGURES 2.55, 2.56 |
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.
†Cammackacetus hazenorum Godfrey and Lambert 2023
show all | hide all
Diagnosis
Reference | Diagnosis | |
---|---|---|
S. J. Godfrey and O. Lambert 2023 | Robust delphinidan char- acterized by the following unique combination of characters: massive, transversely and dorsoventrally thick premaxillae at mid-length of rostrum; no significant constriction of the lateral margins of premaxillae in rostrum base; slightly transversely concave premaxillary sac fossae; well-developed premaxillary crest lateral to the posterior margin of the bony nares, with a prominent dorsolateral corner; reduced contact between pre- maxilla and nasal along anterolateral corner of the latter; mini- mum width of vertex greater than width of bony nares; nasal wider than long; lateral margins of nasals diverging posterolater- ally; dorsal surface of nasal sloping markedly anteroventrally; frontal wider than nasal on vertex and reaching a slightly higher level; nuchal crest barely anteriorly projected, with supraoccipi- tal shield only a little exposed in dorsal view; occipital shield inflated, being dorsoventrally convex; temporal crests converg- ing ventromedially in posterior view; large maxillary alveoli, up to 17 mm in transverse diameter; W-shaped palatine-maxilla su- tures with posteromedial exposure of maxillae between apices of palatines; pterygoid sinus fossa reaching the level of the ant- orbital notch; and fossa for the postorbital lobe of the pterygoid sinus being very deep and posteriorly defined by a high crest. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
Source: subo = suborder, o = order | |||||
Reference: Uhen 2004 |