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Grippia
Taxonomy
Grippia was named by Wiman (1929) [Sepkoski's age data: Tr Olen-u Sepkoski's reference number: 2]. It was considered monophyletic by Motani (1999).
It was assigned to Omphalosauridae by von Huene (1951), Carroll (1988); to Grippidia by Motani (1999), Motani (2000); to Ichthyopterygia by Sander (2000); to Ichthyosauria by Sepkoski (2002); and to Grippiidae by Maisch and Matzke (2000), McGowan and Motani (2003), Maisch (2010), Ji et al. (2016).
It was assigned to Omphalosauridae by von Huene (1951), Carroll (1988); to Grippidia by Motani (1999), Motani (2000); to Ichthyopterygia by Sander (2000); to Ichthyosauria by Sepkoski (2002); and to Grippiidae by Maisch and Matzke (2000), McGowan and Motani (2003), Maisch (2010), Ji et al. (2016).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1929 | Grippia Wiman p. 184 |
| 1951 | Grippia von Huene p. 90 |
| 1988 | Grippia Carroll |
| 1999 | Grippia Motani fig. 1 |
| 2000 | Grippia Maisch and Matzke pp. 62, 94 |
| 2000 | Grippia Motani pp. 3-5 |
| 2000 | Grippia Sander |
| 2002 | Grippia Sepkoski |
| 2003 | Grippia McGowan and Motani |
| 2010 | Grippia Maisch |
| 2016 | Grippia Ji et al. p. 6 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. W. Maisch and A. T. Matzke 2000 | "Very similar to Chaohusaurus, but with posterodorsal flange on surangular, posterior thoracal vertebrae elongate, radius with small anteroproximal and anterodistal prominence, distalmost phalanges of forefin rounded." | |
| R. Motani 2000 | "Small to medium-sized ichthyopterygian; anterior terrace of upper temporal fenestra present; prefrontal shelf prominent; transverse flange of pterygoid well-defined and anterolaterally projected; flange posterior to the coronoid process of surangular; at least two rows of maxillary teeth; tooth crowns bulbous posteriorly and pointed anteriorly; tooth crowns small relative to skull width; humerus short and distally expanded; first metacarpal lunate; at least some phalanges with round proximal expansions; manus longer than more proximal part of forelimb; posterior dorsal vertebrae long, with height/length ratio of about 1·2." |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||