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Garzapelta
Taxonomy
Garzapelta was named by Reyes et al. (2024). It is not extant. Its type is Garzapelta muelleri.
It was assigned to Stagonolepidoidea by Reyes et al. (2024).
It was assigned to Stagonolepidoidea by Reyes et al. (2024).
Species
G. muelleri (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2024 | Garzapelta Reyes et al. p. 1276 |
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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 | |
|---|---|---|
| W. A. Reyes et al. 2024 | Garzapelta muelleri gen. et sp. nov. is a large-bodied aetosaur with autapomorphic conditions that include protuberances on the anteriorly keeled dorsal eminence
(i.e., spine) of the lateral osteoderms in the cervical and anterior-trunk region, a strongly sigmoidal contact between the paramedian and lateral osteoderms of the anterior-caudal region, a sinuous posterior margin of the anterior caudal paramedian osteoderms that exhibits a posteriorly projecting “tongue”-like process directly posterior to the dorsal eminence, an anterior margin in precaudal dorsal osteoderms that is a thin, smooth, unornamented strip of bone, and variation in the development of an anterior bar between the precaudal and caudal regions. Garzapelta muelleri is also differentiated from other aetosaurs based on a unique combination of morphological characters. These include lateral osteoderms with well-developed, moderately long, recurved spines (shared with Longosuchus meadei, L. hunti, and S. macalpini), a dorsal eminence that lacks a posterior embayment near its base on the lateral osteoderms (as observed in L. hunti and Desmatosuchus), mid-trunk lateral osteoderms that are strongly asymmetrical and exhibit an obtuse flexure between the reduced lateral flange and much larger dorsal flange (unlike those of typothoracines and desmatosuchins, but similar to most other aetosaurs), a semicircular lateral flange in anterior caudal lateral osteoderms (shared with paratypothoracins), a distinct medially projecting convex process on the anteromedial edge of the lateral osteoderm (shared with R. chamaensis), paramedian and lateral osteoderms that lack a strong ridge-and-groove articulation between them (unlike desmatosuchins), trunk paramedian osteo- derms with a dorsal eminence that is medially offset and does not contact the posterior margin (similar to paratypothoracins), mid-trunk paramedian osteoderms that exhibit a maximum width-to-length ratio (W:L) between 3.0 and 3.5 (smaller than those of typothoracines except R. chamaensis), paramedian osteoderms with a dorsal ornamentation composed of grooves and ridges that radiate from the dorsal eminence (shared with most taxa except desmatosuchins, T. coccinarum, and R. rineharti), paramedian osteoderms that overlap the anteromedial edge of the lateral osteoderm (unlike desmatosuchins), and paramedian osteoderms with a short rounded antero- lateral process (shared with A. scagliai, A. ferratus, and typothroracines). |
Measurements
No measurements are available
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| Source: subo = suborder, subc = subclass, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Benton 1983, Carroll 1988 | |||||